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04-17-2005, 01:48 AM | #1 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,354
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Leaking Intake Manifold
I noticed this under my intake. Does this mean its leaking? I felt around under it and it didnt have any oil that I could feel.
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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
04-17-2005, 02:44 AM | #2 |
Nothing fits but the oil
Join Date: Mar 2003
Location: Gaston, Indiana
Posts: 424
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Yup, looks like a front manifold leak. That will happen when the your engine is at speed because of existing oil pressure and oil being slung around under the manifold. Did you use the runner gasket, or plain RTV there?
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04-17-2005, 04:42 PM | #3 |
Registered User
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,354
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I used the ultra black rtv. I layed down a bead about as thick as a straw and let it sit for about 30 mins before I put the intake on. That may explain why I thought I had a rear seal leak. Its coming down the front and blowing down along the oil pan and getting to the tranny dust cover. Well I hope I am right. Also has anyone done this. Layed down a thin bead of rtv put on the rubber gasket and then layed down mpre rtv and put the intake on?
Thanks
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RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234 |
04-17-2005, 04:54 PM | #4 |
68cst_ss490
Join Date: May 2001
Location: edmonton,canada
Posts: 1,363
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dont use rtv and agasket it wont seal. when you use rtv both surfaces must be spotless. clean off old rtv till you get to nice clean bare metal then use some brake clean on a rag and wiper both mounting surfaces clean. tehn splly the rtv and set the intake on and torque it down. another bonus is dont start it for 24-48 hours this gives the rtv a good chance to cure
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Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973 |
04-17-2005, 06:37 PM | #5 |
Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
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Adding to what Dean said, inspect the sealant while it is still wet, looking for gaps. Properly applied, it should squeeze out in a uniform bead. After it's cured, you can trim the excess with a razor blade.
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