new engine frustration continues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bucket · 08-14-2003, 04:41 PM

ok......if you remember i was leaking coolant. i resealed each head bolt one at a time and i think the coolant leak has stopped. i still have the oil leak. not valve covers....replaced those and they are dry. not intake.....removed and resealed w/ black rtv. the oil is collecting on the sides around whee the block meets the bell housing midway down (around starter on one side and clutch linkage on other. seems to make it's way down to the belly of transmission. oil pan is dry. the only thing i can think of is rear cam plug. oil seems to high up on block to be rear main.

this is really driving me nuts. my wife even more so since it is beginning to cut into time w/ her and our 5 month old. i just need to finish it up!

ideas?????

FRENCHBLUE72 · 08-14-2003, 07:47 PM

Do you have a copper line to the oil guage or teflon. May want to check the line and brass fittting that screw's into the block. Just a suggestion not sure it will help ya or not.

gmc67swb · 08-14-2003, 07:55 PM

ARE YOU POSITIVE IT'S NOT THE INTAKE. I HAD A SIMILAR PROBLEM ONCE. I USED THE RTV ON ON THE ENDS OF THE INTAKE AND DIDN'T GET THE BEAD THICK ENOUGH.

Gordo · 08-14-2003, 08:08 PM

If you can eyeball the front surface of the flywheel (engine side) and it looks like oil has been spinning off of it, it's probably the rear main, if it's dry it's not the rear main.

bucket · 08-17-2003, 05:18 PM

took the flywheel cover off and the whole inside of the bellhousing is wet. but.........strange thing is the engine side of flywheel is dry, end of crank seems to be dry, hard to see but the cam plug seems to be dry. basically, the engine side of the flywheel is dry, tranny side is wet, dripping of clutch fork, etc. has anyone heard of a input shaft seal leaking SO bad on a four speed that it flings it around? if so, is it easy to fix?

nu2-72 · 08-17-2003, 05:32 PM

You are running a manual transmission? Did you put the pilot bushing back in the crank after the rebuild?

bucket · 08-17-2003, 05:36 PM

Pilot bushing is there....in fact I never removed it. it looked fine when compared to a new one.

bucket · 08-18-2003, 01:01 PM

anyone????????

jhow66 · 08-18-2003, 01:23 PM

Sounds like you have a bad bearing on input shaft that moves so much tjst seal cannot handle it. You should be able to tell if it is trans oil or engine oil by feel or smell . Trans oil will have a much more heavy odor.

08-14-2003, 04:41 PM	#1
bucket Registered User Join Date: Aug 2001 Location: Shawnee, KS Posts: 923	new engine frustration continues ok......if you remember i was leaking coolant. i resealed each head bolt one at a time and i think the coolant leak has stopped. i still have the oil leak. not valve covers....replaced those and they are dry. not intake.....removed and resealed w/ black rtv. the oil is collecting on the sides around whee the block meets the bell housing midway down (around starter on one side and clutch linkage on other. seems to make it's way down to the belly of transmission. oil pan is dry. the only thing i can think of is rear cam plug. oil seems to high up on block to be rear main. this is really driving me nuts. my wife even more so since it is beginning to cut into time w/ her and our 5 month old. i just need to finish it up! ideas?????

08-14-2003, 07:47 PM	#2
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	Do you have a copper line to the oil guage or teflon. May want to check the line and brass fittting that screw's into the block. Just a suggestion not sure it will help ya or not. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

08-14-2003, 07:55 PM	#3
gmc67swb Registered User Join Date: Feb 2003 Location: Mesquite, Tx Posts: 396	ARE YOU POSITIVE IT'S NOT THE INTAKE. I HAD A SIMILAR PROBLEM ONCE. I USED THE RTV ON ON THE ENDS OF THE INTAKE AND DIDN'T GET THE BEAD THICK ENOUGH. __________________ GM 330HP/350, Magnuson 122HH, Tremec TKO 5spd

08-14-2003, 08:08 PM	#4
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	If you can eyeball the front surface of the flywheel (engine side) and it looks like oil has been spinning off of it, it's probably the rear main, if it's dry it's not the rear main. __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

08-17-2003, 05:32 PM	#6
nu2-72 Senior Member Join Date: Apr 2001 Location: Amazonia, Mo. USA Posts: 2,821	You are running a manual transmission? Did you put the pilot bushing back in the crank after the rebuild? __________________ 72 3/4 4x4 350 4spd 72 3/4 4x4 350 auto 2004 Duramax Silverado 4x4 2006 Duramax Crew cab 4x4 2010 Harley Ultra Limited 2011 Harley Street Glide

08-17-2003, 05:18 PM	#5
bucket Registered User Join Date: Aug 2001 Location: Shawnee, KS Posts: 923	took the flywheel cover off and the whole inside of the bellhousing is wet. but.........strange thing is the engine side of flywheel is dry, end of crank seems to be dry, hard to see but the cam plug seems to be dry. basically, the engine side of the flywheel is dry, tranny side is wet, dripping of clutch fork, etc. has anyone heard of a input shaft seal leaking SO bad on a four speed that it flings it around? if so, is it easy to fix?

08-17-2003, 05:36 PM	#7
bucket Registered User Join Date: Aug 2001 Location: Shawnee, KS Posts: 923	Pilot bushing is there....in fact I never removed it. it looked fine when compared to a new one.

08-18-2003, 01:01 PM	#8
bucket Registered User Join Date: Aug 2001 Location: Shawnee, KS Posts: 923	anyone????????

08-18-2003, 01:23 PM	#9
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Sounds like you have a bad bearing on input shaft that moves so much tjst seal cannot handle it. You should be able to tell if it is trans oil or engine oil by feel or smell . Trans oil will have a much more heavy odor. __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer



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