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R33 Gts-T Knocking Noise

mbwilding

By mbwilding,
in General Maintenance

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mbwilding Apprentice

mbwilding

Posted
Posted

Hey. I just got my r33 gts-t back on the road. Redid the timing and she was running sweet. Had the timing fairly well advanced, and the car had lag issues before but the advanced timing via the cas fixed that. Went and did donuts and holding just below 7k and I have a feeling the radiator had not much liquid in it and it seemed to be overheating. After I finished spinning and pulled out from the burnout the car stalled. After I got the car started it seemed to idle alright, but there was a strange knocking noise and it seemed to be coming from the rear cylinder. So I got the car toed and haven't bothered to run it because I am afraid I might hurt the car.

It had been blowing white smoke too.

Does anyone know what could be causing it and or how to fix it?

Much thanks in advanced.

Matt.

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rickr333 Collaborator

rickr333

Posted
Posted (edited)

In my experience with other older types of cars (not imports or nissans but hey an engines an engine right??) white smoke usually means water getting int o a cylinder from a f**ked gasket or cracked head hopefully just head gasket try letting it idle with radiator full and look for bubbles, if u get them then gasket. Theres another way where u use a compressor thru the spark plug holes and also watch radiator but Im not 100% on that one

Was there water in it in the end??

Edited by rickr333
mbwilding Apprentice

mbwilding

Posted
  • Author
Posted (edited)

It only seems to tap on idle, when the revs picked up it goes away I think. Could injectors cause this? higher fuel pressure at higher rpm masking the potential problem with the injectors?

@AaronNM35

Pretty sure it's stock so it would be tappets. thanks for the feedback :)

@rickr333

There was coolant in it, I had to dump it when we were looking at the engine. Thanks :)

Edited by mbwilding
t_revz Grand Master

t_revz

Posted
Posted

Hey. I just got my r33 gts-t back on the road. Redid the timing and she was running sweet. Had the timing fairly well advanced, and the car had lag issues before but the advanced timing via the cas fixed that. Went and did donuts and holding just below 7k and I have a feeling the radiator had not much liquid in it and it seemed to be overheating. After I finished spinning and pulled out from the burnout the car stalled. After I got the car started it seemed to idle alright, but there was a strange knocking noise and it seemed to be coming from the rear cylinder. So I got the car toed and haven't bothered to run it because I am afraid I might hurt the car.

It had been blowing white smoke too.

Does anyone know what could be causing it and or how to fix it?

Much thanks in advanced.

Matt.

awesome combo :cool:

madbung Grand Master

madbung

Posted
Posted

Hey. I just got my r33 gts-t back on the road. Redid the timing and she was running sweet. Had the timing fairly well advanced, and the car had lag issues before but the advanced timing via the cas fixed that. Went and did donuts and holding just below 7k and I have a feeling the radiator had not much liquid in it and it seemed to be overheating. After I finished spinning and pulled out from the burnout the car stalled. After I got the car started it seemed to idle alright, but there was a strange knocking noise and it seemed to be coming from the rear cylinder. So I got the car toed and haven't bothered to run it because I am afraid I might hurt the car.

It had been blowing white smoke too.

Does anyone know what could be causing it and or how to fix it?

Much thanks in advanced.

Matt.

I also am afraid.

t_revz Grand Master

t_revz

Posted
Posted

.. why oh why did they get rid of the rep system - perfect opportunity for people to put it to use ..

+1 for you

Hey. I just got my r33 gts-t back on the road. I have a feeling the radiator had not much liquid in it and it seemed to be overheating.

but im sure you checked the oil level first....

Birds Grand Master

Birds

Posted
Posted

Oh a loose conrod, that's not right...your engine timing must have been slightly out...can't think of any other cause. Tell your engine rebuilder to use a left handed torque wrench when he's torquing up the end caps...RB engines respond to them more positively than conventional torque wrenches...a lot of rebuilders don't know this.

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