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#1 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: 72 K30 Build
How about carefully drill the center with a small bit to relieve some of the pressure?
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#2 |
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
Thanks guys all good suggestions, probably end up trying all three before we are done!
![]() So the K30 has been running for a few weeks now and I’ve got some nagging overnight leaks that just won’t go away. You’re looking at an engine oil (left) & atf (right) leak, your also probably thinking that’s much of a leak. What you don’t know is that this first pic is after I drained the engine & trans over 24 hours earlier. Third pic is 48 hours later and last pic is 72 hours later prior to mounting to the engine stand and still leaking (how can it do that?) Jeez Lueez! ![]() I’m most concerned with the engine oil leak because it’s coming from the rear main seal area. At first it only leaked a little overnight but progressively got worse to where it would slowly leak oil while running, not good.
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#3 |
Registered User
Join Date: Jan 2007
Location: pittsburg kansas
Posts: 894
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Re: 72 K30 Build
Truck is looking great. Oil leaks suck, im fighting a trans leak on my less the 2k rebuild.
Love the bench you made |
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#4 | |||
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
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![]() I’m fairly sure my trans leak is the pan and/or the vacuum modulator it’s dry around the dipstick tube and the cooling lines (fixed them at initial startup). This leak can be accessed fairly easily so shouldn’t be a biggie. We’ll deal with it after the motor is back in place.
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#5 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,140
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Re: 72 K30 Build
Brett, your engine sounds sweet! The C30 looks great! It is one nice ride. Te bench turned out great too. Sorry to see about the oil leak. I had an oil leak on my engine in my 72 after I finally got it going and fixed it this spring. At least your cab and sheet metal is out of the way and it saved you some time. Hopefully it's an easy quick fix.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#6 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: 72 K30 Build
I feel your pain! Had my tranny rebuilt and the 205 re gasketed and they still leak, took it back once and they put a new pan gasket on it but still have the same problem, I'm assuming no sealant was used on the gaskets.
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#7 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,140
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Re: 72 K30 Build
I forgot to drop my trans pan when I got my trans back from the trans shop last fall. I wanted to add some good sealer to the gasket to keep it from leaking. It's a plastic with steel gasket. I forgot to and guess what? It leaks a little. So annoying.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#8 | |
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
Quote:
![]() Found several issues that made my engine leak. First the pan gasket was leaking, after mounting the engine to the stand and flipping it upside down I found this. Removed the pan and 3 sides (front, left & rear) were fairly dry but starting on that front right corner (looks like oil was getting past the gasket on the block side in the red circle.) and running all the way down the right rail to the back it’s wet on the outside edge of the gasket. Not 100% on these one-piece style gaskets yet but at least I can clean it up and reuse it (with more sealer in certain areas) and that’s a really good thing. Second our rear main seal and cap were not installed using any sealer, the seal was not offset. This area including all seal surfaces were very wet and the seal is cut in the inner channel near the seam. Once removed I found 3 of the 4 sides had that fate and this seal is junk.
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#9 |
Registered User
![]() Join Date: Dec 2012
Location: Los Banos CA
Posts: 2,705
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Re: 72 K30 Build
Hey Brett that sucks. Sounds like crap I was dealing with on hulk jr. Stupid/crazy things that shouldn't be. I am sure you will get it. My small block has the same seal kit you used as it looks the same. I was able to snug up my oil pan and stop the pan lean I had on the motor. Knock on wood no drops on the driveway so far!
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1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR *SOLD* GO ![]() |
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#10 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,140
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Re: 72 K30 Build
Brett, check to make sure your oil pan isn't bulged towards the engine from being tightened/over tightened over the years. Usually the pans are dented up at every bolt hole and that can cause the one piece style seals to bulge/dis form and not seal correctly. You should be able to take a small ball peen hammer and get the holes flattend or dented the opposite way for your next install.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#11 | ||
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
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![]() While waiting on some parts to get here it’s time to get after that pesky pipe plug. The carnage continued with another Husky adaptor biting the dust. Good thing these have a lifetime warranty cuz they keep handing me new ones! ![]() ![]() TADA we win! It did twist the Proto adaptor as well, but who cares, winning! ![]()
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#12 |
Senior Member
![]() Join Date: Jul 2009
Location: Tomball, Texas
Posts: 1,592
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Re: 72 K30 Build
Yay! I'm a sucker for stories where the good guy wins
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Rick 78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel 71 GMC C25 350/TH400 - Project Angie 59 Chevy SWB Stepside (next in line? Not sure now ![]() 2001 GMC Sierra K2500 |
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#13 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,140
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Re: 72 K30 Build
That's good you got the plug out. Keep an eye out for a bit for an air hammer that has a 3/8 extension end on it. I got one of them to get stubborn plugs out and it works awesome.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#14 | |
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
Thanks Rick, I was getting a little worried I’d end up having to drill the dang thing out like Mike had suggested earlier.
Quote:
Parts are in and we sprung for an upgraded Felpro super-duper, extreme environment rear main seal. Here’s some pics for anyone that has not done this before, plenty of ultra-black and lubriplate. Wiped off excess sealer on the crankcase side once the cap was installed to keep it out of the motor. Turned the motor over by hand to try and get some lubriplate on the block side of the bearing and seal. I’ve never had a rear main leak that was done similar to this.
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#15 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: 72 K30 Build
Moving forward!
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#16 |
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
You Betcha!
Bottom end is all buttoned up, painted and it ain’t gointa leak this time!! ![]()
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#17 |
Registered User
Join Date: Mar 2005
Location: Durham NC
Posts: 216
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Re: 72 K30 Build
Looking good. I hope you got it sealed up this time. Keep up the great progress.
I posted a link on how felpro recommends using their silicone rubber gaskets. These type of gaskets are top of the line and usually don't leak. http://www.felpro-only.com/blog/clean-dry/
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68 4wd Stepside 69 2wd Stepside Project 71 2wd Blazer Project 72 2wd 3/4 Ton Project or Parts? 73 4wd Blazer |
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#18 |
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
Thanks junksaver me too and thanks for the link you’re 100% correct, that’s a big reason why I wanted to try one of these style gaskets. The reusability was an added bonus as things are turning out.
![]() Ha that's one on me, I’ve never had a motor leak for 3 full days after it’s been drained. ![]() ![]() Moving on, temp sender is in place and yes still winning! ![]() Here we go for round #2!
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#19 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: 72 K30 Build
Maybe a bit of thread sealant on the bolts if the thread passage is open to the crankcase?
I will always use my fingers and spread a thin film on the gasket before install and extra in the corners like you did. EDIT: Old school with old school gaskets.. Hang in there, I'm chasing my tail with the bondo work i'm doing, i swear the low spots are alive and moving from one location to another!
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's Last edited by swamp rat; 08-05-2016 at 12:25 AM. |
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#20 |
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
Thanks Mike, the sealer used was just on the block side 4 corners area and only where it looked like it had or could leak the seal against the pan side was very good.
So the K30 looks just like it did before, but happy to report it has not leaked a drop of anything for several weeks! ![]()
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#21 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,140
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Re: 72 K30 Build
Brett, very nice! Yes, that snap-on chisel adapter is the one. It is pricey but can have multiple uses.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#22 |
Registered User
Join Date: Oct 2007
Location: Spanaway
Posts: 8,451
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Re: 72 K30 Build
Good job Brett!
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Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's |
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#23 |
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
Thanks you guys!
It is time to spin the frontend under its own power. I’d debated about rebuilding the front driveline as it’s in really good shape. But finally did decide to send it out for new sealed u-joints, it also got a new ball seal and the balance was checked. ![]() ![]() Just par as I fuss over most everything including what we send out! ![]()
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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#24 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,140
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Re: 72 K30 Build
The front shaft should be good to go for a long while now. It looks great.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#25 |
Registered User
Join Date: May 2011
Location: Syracuse, Utah
Posts: 1,929
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Re: 72 K30 Build
Thanks Ryan, you know I should’ve mentioned while on my soap box that our vendor did do a good job, at a great price and I know they are a high volume shop. Probably lucky it got cleaned as well as it did!
![]() No pics to post today just a couple of new video’s. https://www.youtube.com/watch?v=i7XV4BRHrKo Installed the newly serviced front drive line and spun our rebuilt D60 frontend. Cold start with fast idle and we get some pinion seal squeal (dry) going on towards the end of the video. https://www.youtube.com/watch?v=ZYsFCTa84uA Next day, round 2, fired it up in neutral put it in drive and walked away to go get my camera. Let it run for about 25-30 minutes spinning in drive this time the pinion seal is happy & quiet. The old leaky Dixco oil pressure gauge we use did leave a drop on the floor.
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Brett ![]() 67 Camaro SS Build:http://67-72chevytrucks.com/vboard/s...d.php?t=751594 72 Cheyenne/10 Super 115" Fleetside (Waiting it's turn.) 72 Cheyenne/K30 Super 133" DRW SOLD Build:http://67-72chevytrucks.com/vboard/s...d.php?t=645614 YouTube: https://www.youtube.com/@6dee7-7dee2 |
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