Help Timing Belt Service

[r33-gtstmarc]

Hi all im new to the forum,

I have got a 98 model r33 gtst and i am about to change my timing belt, tensioner, idler and all that. im just wondering if anyone has done it before and if there is any tips and tricks for doing it and any no no's? Im doing the 100,000km service bought all the stuff already just gotta do it.

[t_revz]

if your gonna hold onto the car its worth doin the waterpump aswell. think it was 120 from nissan and is behind all that. mine started leaking from tell tale about 120,000 and saves pulling it apart again

[jrm]

And thermostat ..

[r33-gtstmarc]

Thanks, yeah iv already bought all those parts....been researching everything for awhile online.

[Dose Pipe Sutututu]

while your at it do:

- cam seals

- cam cover seals

- install poncams (optional, since you're doing the timing belt, might as well!)

[r33-gtstmarc]

yeah iv got the the cam seals, yeah i would but going over seas for a hol at the end of the year so i cant afford to spend much on my car this year other wise i would stick on my t4 turbo.

[Dose Pipe Sutututu]

yeah iv got the the cam seals, yeah i would but going over seas for a hol at the end of the year so i cant afford to spend much on my car this year other wise i would stick on my t4 turbo.

T4 turbo? eh

[r33-gtstmarc]

yeah its from a vl turbo but fits onto the rb25det with a diff flange

[ThomasH]

Check the timing after you're done with a timing light. Something I didn't when my timing belt was done, and the guy that did my belt didn't know it either appereantly. Someone gave me the tip, went and got it checked. Timing was at 21 degrees, while the RB25DET is supposed to have a timing of 15 degrees.

[r33-gtstmarc]

cheers mate, ill do that

[S1LV3RTRACKS]

Check the timing after you're done with a timing light. Something I didn't when my timing belt was done, and the guy that did my belt didn't know it either appereantly. Someone gave me the tip, went and got it checked. Timing was at 21 degrees, while the RB25DET is supposed to have a timing of 15 degrees.

+1. I have the same issue which is getting fixed at the end of this week. The timing belt was done on my R33 and the timing was set to 10 degrees for some reason. As far as I am aware a manual RB25DET is 15 degrees and an auto RB25DET is 20 degrees.

[Jezza-gtR]

Tips:...

*Mark the valve timing

*Seal the water pump good

*Make sure cam / crank seals are in 100%

*Check ignition timing afterwards

*Once the new belt is on, turn the motor over 2-3 times

*Locite on the crank bolt and make sure its tight!

*If you can, torque the bolts

*Make sure belt tension is correct

Thats all I can think off atm.

[r33-gtstmarc]

Sweetas thanks heaps. One thing if you check the timing and its out, do you adjust it by the postion of the belt or some other way?

[LeCoq]

how do i suppose to tell how many degrees is mine in?? becoz i just changed my timing belt recently too and i notice my gear ratio is a bit different when i change gears, the acceleration goes up more than usual everytime i step it i guess??

[ThomasH]

Easiest way is to go to a garage that uses a timing light. Shouldn't be expensive, and done in a matter of minutes. The timing is adjusted through the CAS, and it's really a matter of millimeters, so if you're not sure about what you're doing, let someone else do it. When the timing is really off, it can do some nasty things to your motor in the long run.

[r33-gtstmarc]

sweet, that might be a good idea then, take it to a mechanic to get the timing checked once iv changed the timing belt. This might be a stupid question but is the cas the comp in the car or what? Im not bad when it comes to hand on shit seeing as im a aircraft mechanic and i should be seeing as i do it everyday haha but when it comes to other shit im hopeless haha. Thanks for all your help.

[boostn0199]

The cas is not the ecu its the thing on the end of the exhuast cam which has 3 screws and you just unscrew them and tap it which ever way you need to either retard or advance the timing.

[r33-gtstmarc]

awesome thank you very much, im with it now haha. Id like to thank everyone for there help its much appreciated.

[boiracer]

anyone happen to know how tight the timing belt should be? cant find it anywhere