Engine Pinging (

JDMMA70

Active Member
Dec 4, 2006
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Well as i stated before when he was running 87 he was pushing the car pretty hard quite a few times going past 5000rpms. He has an EGR, i havent ruled out rod knock yet but im just trying to help him with the easiest fix first. Over said 2000rpms often as soon as it started he started trying to keep it under 2000rpms.
 

JDMMA70

Active Member
Dec 4, 2006
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jdub;1144020 said:
RK is the loudest at ~2500 RPM.

Ok he had kept the car on the way home at or under 1500rpms never went over it got quiet, went away at times, came back loud, went away, came back quieted down got loud again and went away. Im gonna diagnose it today.
 

92TealSupra

Supramania's Parts Man
Sep 2, 2008
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Great Lakes State
hvyman;1144295 said:
rod knock wouldn't go away that's excessive clearance and only get worse

Correct! Rod knock conditions do not get up, and walk away..:3d_frown:

If there was rod knock it would remain there and get worse.
 

JDMMA70

Active Member
Dec 4, 2006
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*Update*

Well its toast

Ssides 1990 Turbo Supra
July 1990 - September 30th 2008
Cause of death Rod Knock
Time of death 9:33pm

So...........time for a rebuild!
 

JDMMA70

Active Member
Dec 4, 2006
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His oil was at the Full mark on the dipstick, only thing i noticed was the oil pressure gauge sat above the first "tick" mark from the bottom mark at idle. The story on this car is that when they got the car the motor was already blown they had found another used 7MGTE and swapped it in, the mechanic didnt hook up the oil pressure sender plug, the knock sensors, boost sensor, water temp sensor. Only thing that worked was the Gas, RPM, and Speedo. He drove the car like that for a good while. He blew the headgasket a month later, funny thing is he never knew the car was overheating because the guage never worked.

Im sure he drove the car around with little to no water in the radiator. When it finally did go he confirmed there was nothing in the radiator and when he drained his oil it looked like nesquik very foamy nesquik. So im assuming that because all of the water that mixed with the oil without him knowing at the time mustve shortened the life of the bearings. After i bolted his new head down and he reassembled he drove the car around for about a 4 weeks on an off kept having an intake leak. When all was well he drove the car to my place and back home then the next day Sept 30th is when it started.
 

TheNewRed

New Member
Oct 19, 2007
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This thread makes me want to puke... literally got sick to my stomach after reading the backround story!