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R33 Rb25det Motor Fs

boostnewy
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boostnewy Apprentice

boostnewy

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Im gana pull the RB25DET out of my R33 no 1 cylinder is down to 90psi and i have bought a new motor at the right price.

U can see the motor running in the next week or 2 if u are interested in buying it.

The motor has done 92,000km may only have a blown head gasket.

Im after $1000

pm me for more info

Edited by boostnewy
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Guilt-Toy Grand Master

Guilt-Toy

Posted
Posted

Please read the rules - whats the location of this engine ?

what comes with the engine ? is manifolds and turbo provided with injectors and coils etc etc

Thanks

Im gana pull the RB25DET out of my R33 no 1 cylinder is down to 90psi and i have bought a new motor at the right price.

U can see the motor running in the next week or 2 if u are interested in buying it.

The motor has done 92,000km may only have a blown head gasket.

Im after $1000

pm me for more info

boostnewy Apprentice

boostnewy

Posted
  • Author
Posted
Please read the rules - whats the location of this engine ?

what comes with the engine ? is manifolds and turbo provided with injectors and coils etc etc

Thanks

sorry my bad

Its a long motor all the manifolds are being used on the new motor may come with the coils have to see whats on the motor when it gets here in the morning will let u know but at the moment its a bare long motor

The car was put upto 16 psi and now it gone down to 90psi so it may be the headgasket but i have a worked motor to put in that i got at the right price so im not gana bother with it.

i know they sell for more but im after a quick sale there isnt any oil in the water and the oil is cream so yeah hard to say. But it is still running in the car on low boost runs sweet still so it can be seen running in the car in newy if sombody is keen cheers

boostnewy Apprentice

boostnewy

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  • Author
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dont talk shit, it wouldn't be the head gasket if only one cylinder has low comp. its not a bigg daddy truck where each cylinder has its own head gasket haha

1 wat to find out what it is pull the head off could be a burnt valve leaking valve could be anything but all i know is its still running fine in the car

  • 2 weeks later...
Z24O Rising Star

Z24O

Posted
Posted
dont talk shit, it wouldn't be the head gasket if only one cylinder has low comp. its not a bigg daddy truck where each cylinder has its own head gasket haha

of course it's possible,each cylinder has a round ring that seals the two mated surfaces(head to block),if you break the integrity of the ring it allows leakage of compression on that cylinder....the other sealed cylinders are unnaffected.(this i know from experience by the way)

it is possible that the piston ring may be cracked,you can exclude this by squirting some oil in the spark plug hole and immediately doing a compression test,if the compression goes up the chances are it's a piston/ring problem

it is possible that the compression is leaking into the water jacket via the headgasket,would get worse with more boost,may show up by overheating,pressurising the cooling system,rough idle on start up first thing in the morning(water leaks into the cylinder overnight and fouls the plug)

if it's a small leak it is unlikely to account for a big drop in compression,best way is to test it with an S-TEK tester that is very sensitive to carbon monoxide in the coolant(even if there are no symptoms),costs about $80 from auto parts store eg coventrys

if its a burnt valve you may hear it popping from the exhaust on heavy decelleration

obviously head off is the best diagnostic route,but the above would take less than 1/2 hour to perform and give some indication of the problem

good luck with the sale

  • 3 weeks later...

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