#1 Intake gasket leak
#1
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#1 Intake gasket leak
Hi guys, so twice now I have had this issue where I have an intake leak on the #1 manifold port. Its on the intake manifold side. The rest of the ports remain perfectly sealed. The gaskets were Elring Klinger, I also have 2 spare brand new sets of factory 2.7 intake gaskets.
Has anyone else seen this? Only changes were I changed the turbo hotside last yr and had to clock it. This caused some clearance issues on the intake which were all sorted (atleast I think, had to grind the intake and turbo a bit).
Is it recommended to double gasket? Car runs great but as it warms up the idle starts to increase. When cold, idle is perfect.
Ideas besides taking it apart again and checking the flatness of the intake.
Has anyone else seen this? Only changes were I changed the turbo hotside last yr and had to clock it. This caused some clearance issues on the intake which were all sorted (atleast I think, had to grind the intake and turbo a bit).
Is it recommended to double gasket? Car runs great but as it warms up the idle starts to increase. When cold, idle is perfect.
Ideas besides taking it apart again and checking the flatness of the intake.
#4
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Probably, any ideas what are typical points that cause interference. I have already confirmed the turbo to intake clearance, the intake mounting bracket on the front and the rear intake mounting bracket.
#5
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#7
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#8
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You can use some clay or plumbers putty to check clearance. Generally it hits on a compressor bolt boss. I clocked the compressor but still had to take off a good bit of one boss with a Drexel. You can also double gasket to provide more clearance.
#9
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Thanks Refresh, this is what I was thinking. Double gasket, but some suggested it might not work. I don't see why it wouldn't. The gaskets are bolted down pretty tight so there is no room for leakage.
#11
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thx
#13
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Refresh, you were spot on. I did confirm that the throttle body part of the intake is hitting the turbo for sure. I could not fit a feeler gauge between the turbo wheel and the intake. There is a clocking bolt on the turbo right below the throttle body section of the intake that is hitting, hence causing the other end of the #1 port not sitting 100% flat against the intake gasket. Time to dremel.
Last edited by RajDatta; 11-26-2014 at 03:35 PM.
#14
Rainman
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THe other day I was thinking about how hard it would be to use an o-ring type gasket for the intake manifold flange like many newer cars have (Ford Modular, LS series, etc). You would need to cut a groove into the manifold surface or the head for each o-ring to seat in but the other mating surface is just flat metal to squish the o-ring (like the 944 throttle body seal).
Would that be an improvement over the stock paper gasket, or be useful in conjunction with one?
Would that be an improvement over the stock paper gasket, or be useful in conjunction with one?
#15
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THe other day I was thinking about how hard it would be to use an o-ring type gasket for the intake manifold flange like many newer cars have (Ford Modular, LS series, etc). You would need to cut a groove into the manifold surface or the head for each o-ring to seat in but the other mating surface is just flat metal to squish the o-ring (like the 944 throttle body seal). Would that be an improvement over the stock paper gasket, or be useful in conjunction with one?
Update: ground off the turbo clocking section and bolt. Double checked after install and feeler gauge has plenty of space now. True test would be a drive. Snowing right now, so it will have to wait.
Thanks everyone. Really appreciate it.
Regards.