ok was this my high temp problem !!!!! maybe fixed ?
Thread Starter
Instructor
Joined: Mar 2010
Posts: 189
Likes: 0
From: DFW texas
ok was this my high temp problem !!!!! maybe fixed ?
ok so 88 c4 with new afr heads - was runnning into a temp issue with it getting too hott -
well after several postings with no soultion
i pulled the engine back apart and founf the guy that put my engine together put the intake manifold gaskets on backwards with the restricted ends on the front of the heads instead of the rear
well i bought new felpro 1256 intake manifold gaskets with no restriction that im gonna put in anyways
but since he had those orginal ones on backwards could this been of what was causing my car to eventually reach high temps ?
thanks all
well after several postings with no soultion
i pulled the engine back apart and founf the guy that put my engine together put the intake manifold gaskets on backwards with the restricted ends on the front of the heads instead of the rear
well i bought new felpro 1256 intake manifold gaskets with no restriction that im gonna put in anyways
but since he had those orginal ones on backwards could this been of what was causing my car to eventually reach high temps ?
thanks all
Thread Starter
Instructor
Joined: Mar 2010
Posts: 189
Likes: 0
From: DFW texas
the headgaskets are pretty hard to put on wrong lol but im asking could the intake manifold gaskets being put on backwards with the restricted end in the front instead of the back cause a heating issue or flow issue
Melting Slicks
Joined: Sep 2008
Posts: 2,376
Likes: 111
From: Cherokee National Forest TN
After many custom intakes the smallest openings I was able to use & still keep the motor cool was 1/2" pipe.
Based on that info & your current find new intake gaskets could very well be the solution.
Head gaskets may be necessary if the motor was cooked.
Based on that info & your current find new intake gaskets could very well be the solution.
Head gaskets may be necessary if the motor was cooked.
Thread Starter
Instructor
Joined: Mar 2010
Posts: 189
Likes: 0
From: DFW texas
yeah
the car only ran a few times - i always shut if down when it got to 220, to be safe -
i should the hope the new head gaskets are still good -
i just cant believe the guy put them on backwards , everyone kept telling me it sounded like i was getting hott cause i had a block somewhere , and i cleaned everything , so the only thing i could think of was checking the intake manifold gaskets and i was right -
so hope when this goes back together again now it will run cool like it used to
WHAT I DONT UNDERSTAND IS WHY STOCK INTAKE MANIFOLD GASKETS HAVE THE REARS BLOCKED OFF - BUT AFTER MARKET ONES DONT ?
SOMEONE EXPLAIN WHY TO ME
i should the hope the new head gaskets are still good -
i just cant believe the guy put them on backwards , everyone kept telling me it sounded like i was getting hott cause i had a block somewhere , and i cleaned everything , so the only thing i could think of was checking the intake manifold gaskets and i was right -
so hope when this goes back together again now it will run cool like it used to
WHAT I DONT UNDERSTAND IS WHY STOCK INTAKE MANIFOLD GASKETS HAVE THE REARS BLOCKED OFF - BUT AFTER MARKET ONES DONT ?
SOMEONE EXPLAIN WHY TO ME
Thread Starter
Instructor
Joined: Mar 2010
Posts: 189
Likes: 0
From: DFW texas
ok
well every corvette erformance shop near me said anything over 215 you should pay attention
anything over 230 you should worry
AND BEFORE MY HEAD GASKETS WENT ORIGINALLY MY CAR WOULD RUN ALWAYS BETWEEN 180 AND 200 NO MATTER HOW HOT IT GOT OUTSIDE HERE IN TX
anything over 230 you should worry
AND BEFORE MY HEAD GASKETS WENT ORIGINALLY MY CAR WOULD RUN ALWAYS BETWEEN 180 AND 200 NO MATTER HOW HOT IT GOT OUTSIDE HERE IN TX
Last edited by foreveraudio; May 6, 2012 at 12:45 PM. Reason: ADDED
Melting Slicks
Joined: Feb 2008
Posts: 3,286
Likes: 6
From: Palm Beach
All I can say is if it ran that cool you have a unique Vette. At what temp do your fans come on?
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Racer
Joined: Mar 2012
Posts: 456
Likes: 4
From: Columbus Oh
i pulled the engine back apart and found the guy that put my engine together put the intake manifold gaskets on backwards with the restricted ends on the front of the heads instead of the rear
well i bought new felpro 1256 intake manifold gaskets with no restriction that im gonna put in anyways
but since he had those orginal ones on backwards could this been of what was causing my car to eventually reach high temps ?
thanks all
well i bought new felpro 1256 intake manifold gaskets with no restriction that im gonna put in anyways
but since he had those orginal ones on backwards could this been of what was causing my car to eventually reach high temps ?
thanks all
Many aftermarket intakes don't have rear coolant passages so it doesn't matter if they block off the rear coolant passages. If there are no passages they are effectively blocked anyway. If there are rear passages then they leave them open so the water can flow through. It's a "no-lose" situation to leave them open.
Racer
Joined: Mar 2012
Posts: 456
Likes: 4
From: Columbus Oh
I'm just glad to see that a solution is in sight.
Just my thoughts.
Thread Starter
Instructor
Joined: Mar 2010
Posts: 189
Likes: 0
From: DFW texas
ok problem fixed
in one of the original threads he said it was at 235 and climbing when he shut it down. The car did appear to be running hot. The block off plates in the wrong end of the intake gaskets was suggested in one of those other threads. Since that blocks water flow to the thermostat and stops water circulation to the radiator, it was going to run hot...even if it was shut down at only 220 (which i agree is not too hot). So while i don't disagree with what you are saying, it's not based on the information given in the two previous threads (that you probably didn't see so you wouldn't have had that info and it was stated differently here...for some reason) and it's somewhat irrelevant if the water passages are blocked...it's going to over heat if it runs any length of time.
I'm just glad to see that a solution is in sight.
Just my thoughts.
I'm just glad to see that a solution is in sight.
Just my thoughts.
well like i was saying before the heads went i was running 180 all the time -
well i took it apart to check the guys work and he did install the intake manifold gaskets backwards - i took them off anyways and put on the gaskets that have no restriction now im back to running temps of 180 with afr heads on a 92 degree day - im happy again now if i can figure out they rev tach problem im having - see other thread
thanks all for your thoughts on this subject - now its fixed and you see the solution that fixed it