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05-13-2008, 04:14 AM
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#1 |
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Registered User
Join Date: Mar 2006
Location: Kansas
Posts: 300
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Oil Leak
This is a strange one. This is a new motor I have changed the front oil seal again and the harmonic balancer is new with the motor. The 350 is from a newer chevy truck carburated and has been bored and stroked to a 383. This may not matter but... It seems it is blowing oil from the the front right of the motor. Can it come from the fuel pump connection to the motor or am I missing a plug on the front of the block. I put my hand up by the front oil seal and it is dry but the pan is covered. I thought for sure it was the front pan oil seal but that is dry too. Any thoughts that would help would be great.
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1969 GMC 3/4 Ton 4x4 2" Lift, A/C, PS, PB 383 Stroker, 700R4, 205, 4.10 GM Medium Bronze (Copper Poly) no new nick name yet. She is to pretty to be the Beater. http://67-72chevytrucks.com/vboard/s...d.php?t=241855 |
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05-13-2008, 04:22 AM
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#2 |
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Registered User
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
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Re: Oil Leak
If it is a new GM replacement block it has a provision for an oil dipstick on both sides You have to plug the one you don't use.
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69 Chevy 4x4 383 Power 
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05-13-2008, 04:25 AM
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#3 |
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Registered User
Join Date: Mar 2006
Location: Kansas
Posts: 300
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Re: Oil Leak
It is not a new GM replacement block it is from a late 80's truck. But I will look for a dipstick location.
Thanks
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1969 GMC 3/4 Ton 4x4 2" Lift, A/C, PS, PB 383 Stroker, 700R4, 205, 4.10 GM Medium Bronze (Copper Poly) no new nick name yet. She is to pretty to be the Beater. http://67-72chevytrucks.com/vboard/s...d.php?t=241855 |
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05-13-2008, 04:31 AM
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#4 |
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Registered User
Join Date: Aug 2007
Location: Stratford,SD
Posts: 296
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Re: Oil Leak
isn't there plugs on the front of an engine that blow out when the engine gets extremely overehated to prevent really bad damage, there is a name for them but it slipped my mind???
It is gonna kill me until I remember it.
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1967 c-10 longbox project, check it out in projects 1969 c-10 parts pickup, twisted frame Daily driver- 1970 Olds delta 88, 2dr., 455, gotta love the big block Last edited by oldsmobilekindofguy; 05-13-2008 at 04:32 AM. |
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05-13-2008, 04:35 AM
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#5 |
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Registered User
Join Date: Mar 2006
Location: Kansas
Posts: 300
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Re: Oil Leak
It has not overheated and the oil pressure is between 20-40 psi.
__________________
1969 GMC 3/4 Ton 4x4 2" Lift, A/C, PS, PB 383 Stroker, 700R4, 205, 4.10 GM Medium Bronze (Copper Poly) no new nick name yet. She is to pretty to be the Beater. http://67-72chevytrucks.com/vboard/s...d.php?t=241855 |
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05-13-2008, 05:11 AM
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#6 |
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Registered User
Join Date: Feb 2002
Location: Cadiz, OH
Posts: 628
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Re: Oil Leak
Isn't there a bolt hole or something by the fuel pump that can leak oil if it is not plugged? Seems I read that on here somewhere before.
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68 1 ton dually 292, 2001 Sebring, 2004 Trailblazer, 11 Camaro Convertible. |
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05-13-2008, 05:16 AM
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#7 | |
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Well, Whoop-dee-do!
 
Join Date: Mar 2003
Location: Easton, Mo. pop.- me & scarcely a few others
Posts: 2,302
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Re: Oil Leak
Quote:
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'68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD  '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car 
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05-13-2008, 05:23 AM
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#8 |
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someday it will be done!
Join Date: Sep 2004
Location: Lloydminster,AB. Canada
Posts: 1,620
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Re: Oil Leak
I just went through the same thing with my fresh 355.After a long battle,it turned out the leak was in fact coming from around the fuel pump.I removed the pump,cleaned the pump flange,the plate,and the block.New gaskets and goop,reinstalled.It's been good since.
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'72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore.    '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics Last edited by Rollie396; 05-13-2008 at 05:24 AM. |
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05-13-2008, 05:25 AM
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#9 | |
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STOLEN
Join Date: Jun 2006
Location: Orange County
Posts: 1,022
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Re: Oil Leak
Quote:
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In Search Of |
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05-13-2008, 05:27 AM
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#10 |
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Registered User
Join Date: Mar 2006
Location: Kansas
Posts: 300
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Re: Oil Leak
Thanks I will try it as soon as I can. It may be a couple of days.
Thanks again.
__________________
1969 GMC 3/4 Ton 4x4 2" Lift, A/C, PS, PB 383 Stroker, 700R4, 205, 4.10 GM Medium Bronze (Copper Poly) no new nick name yet. She is to pretty to be the Beater. http://67-72chevytrucks.com/vboard/s...d.php?t=241855 |
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05-13-2008, 05:27 AM
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#11 | |
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Registered User
Join Date: Feb 2008
Location: Phoenix, Az
Posts: 1,204
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Re: Oil Leak
Quote:
What type of valve cover bolts do you have? Make sure they are tight and gaskets are good, not a "yeah I put new one's on" but take the covers off and inspect them.
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R.I.P. Scott Kalitta
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05-13-2008, 05:30 AM
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#12 |
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Well, Whoop-dee-do!
Join Date: Mar 2003
Location: Easton, Mo. pop.- me & scarcely a few others
Posts: 2,302
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Re: Oil Leak
Here's the bolt hole that needs plugged
__________________
'68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car
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