Major Issue... Help please... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

longbed67 · 05-08-2013, 04:51 PM

So I finally got to start up my Blow through turbo charged Inline 250 today.... only to my dismay it starting blowing motor oil out the back side of the block somewhere between the tranny and the engine.... and it also would not shift into or out of gears.... and neutral was not neutral on an NP435 (4 speed on the floor) tranny.... SOOO... Long story short I now have to pull the engine and trans and try to figure out what the heck went wrong! Can this engine/trans combo be pulled without removing the front clip and without removing the high hump inside the cab and without damaging all my paint work with one guy, or am i stuck pulling the front clip...

thanks ahead of time.

**Ol Blue K20** · 05-08-2013, 05:45 PM

I would separate the trans and motor, would make it alot easier by yourself
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1972SUPERSB · 05-08-2013, 05:48 PM

Yeah just leave tranny in the truck and you can pull the motor yoursellf
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**TBONE1964** · 05-08-2013, 05:57 PM

I would seperate them in the truck. You will have to any way once they are out. I would hate to see any damage to the paint. It looks like you have invested a lot of time to risk it.

longbed67 · 05-08-2013, 06:09 PM

So If I am separating them in the truck... wouldn't I be able to pull the clutch and flywheel assembly without pulling the motor and then I would see if an oil gallery plug came loose....

**Ol Blue K20** · 05-08-2013, 06:15 PM

Quote:

Originally Posted by longbed67

So If I am separating them in the truck... wouldn't I be able to pull the clutch and flywheel assembly without pulling the motor and then I would see if an oil gallery plug came loose....

yep, you got it with any luck you won't need to pull the engine...
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longbed67 · 05-08-2013, 06:30 PM

Still sux but looks like I still might have her on the road by this weekend even with a tranny swap.

Critter · 05-08-2013, 07:54 PM

What was your boost pressure? Sounds like you might have blown out the rear main due to too much crank case pressure

longbed67 · 05-08-2013, 09:09 PM

The most boost the engine seen in its 45 seconds of running was 3-4lbs on the gauge as I revved it to 3000rpm to get a feel for it just after I turned the engine over. The truck never even moved an inch, so no loaded boost. And the rear main seal was dry and clean when I looked up in there with the flashlight... I'm not sure where the motor oil is coming from but I'm sure I will find out soon enough.

longbed67 · 05-08-2013, 11:45 PM

Well I found the source of the oil... It was coming out around the camshaft. Now my question is, Is there supposed to be a cap on the back side of the block to cover the end of the camshaft so that it does not spill oil out? Also is a pic of the flywheel and clutch, did these get ruined in the initial start up today?

**TBONE1964** · 05-09-2013, 12:13 AM

Yes there is a plug there. It is a press fit like a freeze plug and you should be able to knock it in with something close to the same size and a medium size hammer.

Your pressure plate and clutch disc should be OK to run, maybe a light scuff with a scotch brite pad on the pressure plate. Clean disc with brake cleaner.

Koffer · 05-09-2013, 12:16 AM

there should be a plug in the end where the cam shaft goes (looks like a freeze plug) as for the clutch , That I dont know seems like it was a couple of high spots on the flywheel you could always take it to a machine shop and true it up . (Tbone1964 typed a little faster then me )

longbed67 · 05-09-2013, 10:42 AM

The funny part of the flywheel is that It was balanced and machined before start up...

longbed67 · 05-09-2013, 10:42 AM

Got the plug in and now I just have to reassemble, and if this rain lets up, break in the engine

1972SUPERSB · 05-09-2013, 10:43 AM

That's good. Let us know how it turns out
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Rufton · 05-09-2013, 11:34 AM

Oil can be cleaned out of clutch as mentioned.
How did the flywheel get burnt in two spots?
May not hurt to put a straight edge and feeler gauge on flywheel.

longbed67 · 05-10-2013, 09:37 PM

All is well! Cam plug is in, took the top of the transmission off and readjusted everything, rebalanced and surfaced the flywheel. there was no oil on the clutch so I got lucky there. put it all back together, and well here is the video

http://www.youtube.com/watch?v=z3MvI...ature=youtu.be

1972SUPERSB · 05-10-2013, 09:56 PM

Sweet glad you got it all back together. Sounds good!
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Rufton · 05-10-2013, 10:38 PM

Great news! Real nice

**chev3600** · 05-11-2013, 08:06 AM

That's a great sound.
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airdale94 · 05-11-2013, 01:10 PM

Awesome truck dude! Checking out your build thread.

05-08-2013, 04:51 PM	#1
longbed67 Registered User Join Date: Jun 2011 Location: Monroe, WI Posts: 1,415	Major Issue... Help please... So I finally got to start up my Blow through turbo charged Inline 250 today.... only to my dismay it starting blowing motor oil out the back side of the block somewhere between the tranny and the engine.... and it also would not shift into or out of gears.... and neutral was not neutral on an NP435 (4 speed on the floor) tranny.... SOOO... Long story short I now have to pull the engine and trans and try to figure out what the heck went wrong! Can this engine/trans combo be pulled without removing the front clip and without removing the high hump inside the cab and without damaging all my paint work with one guy, or am i stuck pulling the front clip... thanks ahead of time. __________________ *Adam* My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706

05-08-2013, 05:45 PM	#2
Ol Blue K20 Proprietor of Dale's Corner Join Date: Nov 2012 Location: Vacaville , CA Posts: 15,963	Re: Major Issue... Help please... I would separate the trans and motor, would make it alot easier by yourself Posted via Mobile Device __________________ "Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man

05-08-2013, 05:48 PM	#3
1972SUPERSB Registered User Join Date: Sep 2012 Location: San Antonio, TX Posts: 1,026	Re: Major Issue... Help please... Yeah just leave tranny in the truck and you can pull the motor yoursellf Posted via Mobile Device __________________ Jeff 1972 Cheyenne Super SWB 350, Auto, Bucket Seats w/Console, Tach, Factory A/C, P/S ,P/B, Tilt 1998 Chevy 1500 Ext Cab 5.7, Pewter w/blue interior

05-08-2013, 05:57 PM	#4
TBONE1964 Cluster King Join Date: Nov 2012 Location: Junction City, OR Posts: 5,263	Re: Major Issue... Help please... I would seperate them in the truck. You will have to any way once they are out. I would hate to see any damage to the paint. It looks like you have invested a lot of time to risk it.

05-08-2013, 06:09 PM	#5
longbed67 Registered User Join Date: Jun 2011 Location: Monroe, WI Posts: 1,415	Re: Major Issue... Help please... So If I am separating them in the truck... wouldn't I be able to pull the clutch and flywheel assembly without pulling the motor and then I would see if an oil gallery plug came loose.... __________________ *Adam* My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706

05-08-2013, 06:30 PM	#7
longbed67 Registered User Join Date: Jun 2011 Location: Monroe, WI Posts: 1,415	Re: Major Issue... Help please... Still sux but looks like I still might have her on the road by this weekend even with a tranny swap. __________________ *Adam* My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706

05-08-2013, 07:54 PM	#8
Critter Future TOTM Winner Join Date: Aug 2006 Location: Bulverde, TX Posts: 2,692	Re: Major Issue... Help please... What was your boost pressure? Sounds like you might have blown out the rear main due to too much crank case pressure __________________ 72 Chevy CST K5 HIGHLANDER BLAZER Getting a 6.0,NV4500,NP205,14BFF (Currently laying all over the place in little pieces) 72 Chevy swb step-side "LS" 6.0 Here's a build thread of sorts 2002 HD2500 Crew Cab, 8.1L Allison 4x4 Daily Driver Check it out www.lsdyno.com

05-08-2013, 09:09 PM	#9
longbed67 Registered User Join Date: Jun 2011 Location: Monroe, WI Posts: 1,415	Re: Major Issue... Help please... The most boost the engine seen in its 45 seconds of running was 3-4lbs on the gauge as I revved it to 3000rpm to get a feel for it just after I turned the engine over. The truck never even moved an inch, so no loaded boost. And the rear main seal was dry and clean when I looked up in there with the flashlight... I'm not sure where the motor oil is coming from but I'm sure I will find out soon enough. __________________ *Adam* My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706

05-08-2013, 11:45 PM	#10
longbed67 Registered User Join Date: Jun 2011 Location: Monroe, WI Posts: 1,415	Re: Major Issue... Help please... Well I found the source of the oil... It was coming out around the camshaft. Now my question is, Is there supposed to be a cap on the back side of the block to cover the end of the camshaft so that it does not spill oil out? Also is a pic of the flywheel and clutch, did these get ruined in the initial start up today? Attached Images __________________ *Adam* My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706

05-09-2013, 12:13 AM	#11
TBONE1964 Cluster King Join Date: Nov 2012 Location: Junction City, OR Posts: 5,263	Re: Major Issue... Help please... Yes there is a plug there. It is a press fit like a freeze plug and you should be able to knock it in with something close to the same size and a medium size hammer. Your pressure plate and clutch disc should be OK to run, maybe a light scuff with a scotch brite pad on the pressure plate. Clean disc with brake cleaner.

05-09-2013, 12:16 AM	#12
Koffer Registered User Join Date: Dec 2012 Location: Hopewell NJ 08525 Posts: 232	Re: Major Issue... Help please... there should be a plug in the end where the cam shaft goes (looks like a freeze plug) as for the clutch , That I dont know seems like it was a couple of high spots on the flywheel you could always take it to a machine shop and true it up . (Tbone1964 typed a little faster then me ) __________________ '77 P10 (GMs late 60s thru the 70s truck spare parts bin model )

05-09-2013, 10:42 AM	#13
longbed67 Registered User Join Date: Jun 2011 Location: Monroe, WI Posts: 1,415	Re: Major Issue... Help please... The funny part of the flywheel is that It was balanced and machined before start up... __________________ *Adam* My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706

05-09-2013, 10:42 AM	#14
longbed67 Registered User Join Date: Jun 2011 Location: Monroe, WI Posts: 1,415	Re: Major Issue... Help please... Got the plug in and now I just have to reassemble, and if this rain lets up, break in the engine __________________ *Adam* My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706

05-09-2013, 10:43 AM	#15
1972SUPERSB Registered User Join Date: Sep 2012 Location: San Antonio, TX Posts: 1,026	Re: Major Issue... Help please... That's good. Let us know how it turns out Posted via Mobile Device __________________ Jeff 1972 Cheyenne Super SWB 350, Auto, Bucket Seats w/Console, Tach, Factory A/C, P/S ,P/B, Tilt 1998 Chevy 1500 Ext Cab 5.7, Pewter w/blue interior

05-09-2013, 11:34 AM	#16
Rufton Registered User Join Date: Apr 2013 Location: Knoxville TN Posts: 1,170	Re: Major Issue... Help please... Oil can be cleaned out of clutch as mentioned. How did the flywheel get burnt in two spots? May not hurt to put a straight edge and feeler gauge on flywheel. Last edited by Rufton; 05-09-2013 at 11:40 AM.



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05-10-2013, 09:37 PM	#17
longbed67 Registered User Join Date: Jun 2011 Location: Monroe, WI Posts: 1,415	Re: Major Issue... Help please... All is well! Cam plug is in, took the top of the transmission off and readjusted everything, rebalanced and surfaced the flywheel. there was no oil on the clutch so I got lucky there. put it all back together, and well here is the video http://www.youtube.com/watch?v=z3MvI...ature=youtu.be __________________ *Adam* My 1967 C10 - Turbo 250 Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=485843 (608) 214-8706

05-10-2013, 09:56 PM	#18
1972SUPERSB Registered User Join Date: Sep 2012 Location: San Antonio, TX Posts: 1,026	Re: Major Issue... Help please... Sweet glad you got it all back together. Sounds good! Posted via Mobile Device __________________ Jeff 1972 Cheyenne Super SWB 350, Auto, Bucket Seats w/Console, Tach, Factory A/C, P/S ,P/B, Tilt 1998 Chevy 1500 Ext Cab 5.7, Pewter w/blue interior

05-10-2013, 10:38 PM	#19
Rufton Registered User Join Date: Apr 2013 Location: Knoxville TN Posts: 1,170	Re: Major Issue... Help please... Great news! Real nice

05-11-2013, 08:06 AM	#20
chev3600 Senior Member Join Date: Jan 2009 Location: Raleigh, NC Posts: 444	Re: Major Issue... Help please... That's a great sound. Posted via Mobile Device __________________ 1949/1954 with LS swap-yeah! http://s260.photobucket.com/albums/i...0/AD%20trucks/jumbled mess of unorganized photos

05-11-2013, 01:10 PM	#21
airdale94 Registered User Join Date: Jan 2007 Location: Topeka,KS Posts: 778	Re: Major Issue... Help please... Awesome truck dude! Checking out your build thread. __________________ 68' C20. 283CI w/55CC 305HO heads, NP435 Close Ratio, Corp. 14 bolt FF 3.21, 75' front end swap (everything but the X-member).

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