R33 Timing Belt

[skyguy5]

Hi Gents,

I am new to the forum.

I have a R33 GTST '94 done about 112K. I gave my car for Serive yesterday and was told to change the timing belt.

Does any1 know how many k's can the above model skyline do before it becomes a must to change it?

Even though i have requested for it to be changed, I thought maybe it could be helpfull to have an understanding for me and for others in the forum

Thanks

Harry

[jus skott]

hi there,

Working in an auto parts store as well working side jobsas well as on my own vehicle's i never play the how many miles game. Rather better safe than sorry. good luck,

~skott

[eeiko321]

hi there,

Working in an auto parts store as well working side jobsas well as on my own vehicle's i never play the how many miles game. Rather better safe than sorry. good luck,

~skott

so your telling me your gonna change the Timing belt (without any idea or planning/scedule) every 20,000km ....replace just to be safe then sorry?

Hi Gents,

I am new to the forum.

I have a R33 GTST '94 done about 112K. I gave my car for Serive yesterday and was told to change the timing belt.

Does any1 know how many k's can the above model skyline do before it becomes a must to change it?

Even though i have requested for it to be changed, I thought maybe it could be helpfull to have an understanding for me and for others in the forum

Thanks

Harry

it all depends... sometimes rubbers can last longer than others, depending on the ingredients made.

but average recommendations are usually 100,000km.

so if your car hasnt had it done before, its most likely due.

Timing chains usually last a fair bit longer

[dnbosiris]

I bought a s1 r33 with 127000kays on the clock and I suspected the timing belt had never been changed, so i did it + water pump just to be on the safe side.

however now i'm regretting not doing the idler/tensioner pulleys at the same time... apparently if they go it's just as bad! ??

Edited April 22, 2009 by dnbosiris

[Gerg_R31]

if it looks cracked, or teeth missing chips replace

usually they say every 90,000 to 100,000kms

if u dont and it snaps you WILL need new pistons and valves as the 2 meet at a very fast pace

bent valves can also equal cracked valve guides, distorted valve seats, the dust from the chunks taken out of the piston may end up getting picked up in a main bearing journal

alot of machining work and labour hours/costs involved

unless u get lucky and the bent valves do minimal damage, but still $30 + per valve isnt cheap at 24

Edited April 22, 2009 by Gerg_R31

[eeiko321]

I bought a s1 r33 with 127000kays on the clock and I suspected the timing belt had never been changed, so i did it + water pump just to be on the safe side.

however now i'm regretting not doing the idler/tensioner pulleys at the same time... apparently if they go it's just as bad! ??

yes i forgot to mention about that one

it is also recommended to replace the idle tensioner puller with the timing belt.. because they are also very old.

well it depends...sometimes its not as bad.....it causes anoyying rattles and squeeks

[ti2l]

anyone know what the factory timing settings are for the RB25? am changing my timing belt and having troubles

[eeiko321]

anyone know what the factory timing settings are for the RB25? am changing my timing belt and having troubles

ok RB25DET timing is as follows:

15 degrees +/- 1 Degrees, 650 +/- 50rpm

ive got a simplified Workshop manual of the R33 Rb25det aroudn 20mgb which shows you how to test it if you need

cheers

[jus skott]

so your telling me your gonna change the Timing belt (without any idea or planning/scedule) every 20,000km ....replace just to be safe then sorry?

should have clarified. i usually do timing on my cars around 60,000 reason: i run the piss out of them. highway runs country side twistie's and if i ever get a chance tracks.

[eeiko321]

should have clarified. i usually do timing on my cars around 60,000 reason: i run the piss out of them. highway runs country side twistie's and if i ever get a chance tracks.

country runs..... well id say definately get them replaced more often to avoid havoc....

as steve irwin said "if ya break down ere........ its ALL OVA!"

[(OO)SKYLINE(OO)]

The Timing Belt should have been changed when the car gets to 100,000km's.

Usually they are changed just before the 80,000km's mark.

Best to change it if you don't know if it has been done or not and since you got to 112,000km's, it be a good time to change it.