oil leak from front/back of lower intake

OzRuss · 11-30-2002, 08:53 AM

I have replace the lower intake gasket twice now but still I have a problem with oil leaks from both from and back of the lower intake.

I read another thread that suggested this may be due to high crank case pressure. Is this true? Any Idea??

Old Guy with 87 GT · 11-30-2002, 09:35 AM

had the same problem with mine .......i found that i had to toss out the two cork sections and use a good quality rtv instead(black rtv did the trick)

i found that the cork sections of the gaskets were actually sqeezing there way out of alighnment after i torked the intake down

sn95gt19 · 11-30-2002, 09:37 AM

yep do what he said, put a 1/4 inch of some rtv down and throw out the cork gaskets!

OzRuss · 11-30-2002, 09:46 AM

YEah the first atempt did look like they ahd squeezed out.

I have been using a blue TRV but did you got rid of the cork all together?

corder13 · 11-30-2002, 10:58 AM

Yep, toss the gaskets out altogether. Just use the black RTV to make the gasket. I don't think the blue RTV would hold up for an intake gasket.

Rick

84LX89GT · 11-30-2002, 07:21 PM

I resealed my engine and i used only RTV on the front and back of the block, the center gaskets never work right. RTV is the hook up for sealing the front and back of the engine.

OzRuss · 11-30-2002, 07:29 PM

Thanks gents!

11-30-2002, 08:53 AM	#1
OzRuss Registered Member Join Date: Jan 1999 Location: Perth, Australia Posts: 37	oil leak from front/back of lower intake I have replace the lower intake gasket twice now but still I have a problem with oil leaks from both from and back of the lower intake. I read another thread that suggested this may be due to high crank case pressure. Is this true? Any Idea?? __________________ 1986 Australian Ford Farmont Ghia. 85 5.0L, s/steel with fat K&N inlet, mild ported heads, extractors, 2 1/2" y-piped exhaust, 5spd supra manual box.

11-30-2002, 09:35 AM	#2
Old Guy with 87 GT Registered Member Join Date: May 2001 Location: Harrisburg, Pennsylvania Posts: 379	had the same problem with mine .......i found that i had to toss out the two cork sections and use a good quality rtv instead(black rtv did the trick) i found that the cork sections of the gaskets were actually sqeezing there way out of alighnment after i torked the intake down __________________ the "not so old",old guy 87 Mustang GT T-top >hanlon t-5, pro 5.0, centerforce clutch ,adj. cable/quatrant ,3.27s ,full 2 1/2 ex(off road H) adj. reg. ,e-cam ,70mm TB, cobra intake ,1.7rr ,ported/milled e7ets w/crane springs ,306 balaced/decked short block w/speed pro forged flat top pistons ...257rwhp/302rwt best et 13.7@102 (4/11 ) '80 Capri (future project,currently collecting parts for 351 moter)

11-30-2002, 09:37 AM	#3
sn95gt19 motors done......woohooo Join Date: Mar 2002 Posts: 799	yep do what he said, put a 1/4 inch of some rtv down and throw out the cork gaskets! __________________ 95gt lazer red (98 cobra clone) Rice Haters Club Member #116

11-30-2002, 09:46 AM	#4
OzRuss Registered Member Join Date: Jan 1999 Location: Perth, Australia Posts: 37	YEah the first atempt did look like they ahd squeezed out. I have been using a blue TRV but did you got rid of the cork all together? __________________ 1986 Australian Ford Farmont Ghia. 85 5.0L, s/steel with fat K&N inlet, mild ported heads, extractors, 2 1/2" y-piped exhaust, 5spd supra manual box.

11-30-2002, 07:21 PM	#6
84LX89GT Mustangs Join Date: Jul 2000 Posts: 1,938	I resealed my engine and i used only RTV on the front and back of the block, the center gaskets never work right. RTV is the hook up for sealing the front and back of the engine. __________________ 2005 Suzuki Hayabusa GSX1300-R 1980 Ford Thunderbird - 255 V8 ported heads, 5.0L ported stock headers, O.R. H-pipe and Flowmaster 2-chambers, dual roller timing chain hi-po Mack Truck hood emblem 1985 Mustang GT 5.0L T5, F-303, GT40p, headers, off-road h, flowmasters, MSD stuff, etc. Sold 02/06/04 1989 Mustang GT ET: 13.304@102.29 mph (5-24-03) Sold - 1998 Mustang Cobra coupe, 1/4 mile - street tires: 13.843@103.41 (bone stock)

11-30-2002, 10:58 AM	#5
corder13 Registered Member Join Date: Nov 2002 Location: Jonesburg, MO USA Posts: 8	Yep, toss the gaskets out altogether. Just use the black RTV to make the gasket. I don't think the blue RTV would hold up for an intake gasket. Rick

11-30-2002, 07:29 PM	#7
OzRuss Registered Member Join Date: Jan 1999 Location: Perth, Australia Posts: 37	Thanks gents! __________________ 1986 Australian Ford Farmont Ghia. 85 5.0L, s/steel with fat K&N inlet, mild ported heads, extractors, 2 1/2" y-piped exhaust, 5spd supra manual box.

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