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GQ TD42 Oil pressure questions
Posted: Tue Jul 13, 2010 10:53 pm
by foodie
Hey guys,
I just got a Turbo/Gas TD42 and have a question in regards to a cold startup and oil pressure.
When she is cold, you can really hear the tappets/valve assembly rattling about. After a couple of kilometers the noise dies down and she sounds perfect.
Oil level is fine.
Q. Is this a normal noise that I should get used to?
Q. Is this a sign the oil pump is due (how many K's are the pumps good for btw - shes done 335000)
Q. It's running a turbo and gas injection, with the turbo should I put more oil in than the dipstick says to take into account the pluming (I don't think so but asking)
Q. Does anyone have a service schedule for the GQ, eg how many K's is the water pump good for etc?
Q. Is there a specification on any adjustments in the head to make?
Regards,
Thomas
Re: GQ TD42 Oil pressure questions
Posted: Wed Jul 14, 2010 12:14 pm
by mavzilla
do oil pressure test with master guague and adjust your tappets is where i would start
Re: GQ TD42 Oil pressure questions
Posted: Wed Jul 14, 2010 1:45 pm
by JWB
foodie wrote:Hey guys,
I just got a Turbo/Gas TD42 and have a question in regards to a cold startup and oil pressure.
When she is cold, you can really hear the tappets/valve assembly rattling about. After a couple of kilometers the noise dies down and she sounds perfect.
Oil level is fine.
Q. Is this a normal noise that I should get used to? - how long since the settings were checked/adj ?
Q. Is this a sign the oil pump is due (how many K's are the pumps good for btw - shes done 335000)
Q. It's running a turbo and gas injection, with the turbo should I put more oil in than the dipstick says to take into account the pluming (I don't think so but asking) = Jill to the correct mark on the dipstick- any extra plumbing will be full of oil
Q. Does anyone have a service schedule for the GQ, eg how many K's is the water pump good for etc? have you ever changed it ? you could always take it off to check the impeler
Q. Is there a specification on any adjustments in the head to make?
Regards,
Thomas
Re: GQ TD42 Oil pressure questions
Posted: Wed Jul 14, 2010 6:21 pm
by steel
Yeah, check your valve clearances.
Does the oil pressure warning light (on the dash) turn off soon after start up?
Re: GQ TD42 Oil pressure questions
Posted: Thu Jul 15, 2010 11:24 am
by michael a
I have the same set up on my Gq.
Turn the gas off untill warmed up it will not sound as bad. Its a diesel knock when its cold. You should only turn gas on when car is warmed up.
Re: GQ TD42 Oil pressure questions
Posted: Thu Jul 15, 2010 5:28 pm
by Mrowka
steel wrote:Yeah, check your valve clearances.
Does the oil pressure warning light (on the dash) turn off soon after start up?
Mine does something similar. Oil pressure light turns off within two seconds after a cold start-up.
I don't have a gas setup. I will check valve clearances.
Re: GQ TD42 Oil pressure questions
Posted: Thu Jul 15, 2010 7:10 pm
by Clanky
Valve clearances for sure.
I would also check that the rockers arent worn on the tappet pad ( where it contacts the valve stem) and the shaft bearing ( you can feel this without dismantling).
Re: GQ TD42 Oil pressure questions
Posted: Thu Jul 15, 2010 7:36 pm
by foodie
Yep, gas is off when starting, then on.
Will check the clearances - Thanks for the replies.
Re: GQ TD42 Oil pressure questions
Posted: Sun Jul 18, 2010 10:33 am
by its aford not a nissan
if your tappets quieten down once the motor has warmed up then i would say they are fine , most motors are a bit noisey when cold and only come into spec when at operating temp , id say leave them and only adjust if it is noisey at running temp