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100k km service - timing belt, what else?

Nguyen

By Nguyen,
in General Maintenance

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Nguyen Explorer

Nguyen

Posted
Posted

Ok my Skyline needs its timimg belt change because its starting to show some wear, but its not slack or anything. I have performed a thorough search, but it seems that some people only get their timing belt replaced, and nothing else, and then other people get many parts replaced, I would like to service it properly and have every part changed that needs to be.

What else should i also replace at the same time? This will basically be the 100k km service, but performed early to be safe.

I have heard that it is often wise to change other parts such as the water pump at the same time. Should the following also be replaced?:

Idler Bearing

Tensioner Bearing

Crank & Cam seals

Water Pump

Thermostat

What water pump should I replace the stock one with, and who sells them? Also is there any specific timing belt I should request or any generic ones are ok?

What does it roughly cost to replace those 2 bearings, and crank & cam seals? I don't know what they are worth, or how difficult it is to replace them either.

Thanks!

gtst25 Proficient

gtst25

Posted
Posted

I posted the part numbers a few weeks ago so you can buy the idler and tensioner cheap from a bearing shop instead of genuine.

The post was headed fiddly stuff if you want to do a search - I'd advise you to get a new idler + tensioner and look at waterpump too while it's all apart.

Don't know about crank/cam seals - my dad's rb20 had done over 200000k@s with no probs.

As far as waterpumps I know my rb25 won't take the vl rb30 one - you'll have to go genuine and expensive unless you want to drill and tap but the rb20's will take the vl pump as dad and I did just that.

Apparently the rb26's take the vl unit too but don't quote me on that

Good luck!

Nguyen Explorer

Nguyen

Posted
  • Author
Posted

Thanks for your help so far guys...

So generally crank and cam seals don't need to be changed at 100k km? is it easy to inspect them?

Also how many kms do the oil pumps last? When are they usually due for replacement?

I'm not sure how old my brake/powersteering/clutch fluids are either, i think they just keep getting topped up. How often is it best to empty them and replace with new fluids?

Thanks again :D

  • 3 weeks later...
Cake Mentor

Cake

Posted
Posted

getting my timing belt and water pump changed next week

what is the lifespan of the idler and tensioner bearings? should these be changed at the same time as timing belt ? or do they last longer

51jay Mentor

51jay

Posted
Posted

Waterpump has the same life expectancy as the belt so you replace it when you do the belt. For this sort of thing I always use genuine Nissan. Pump is about $120. As for interchangability if they have the same Nissan part no ok if not no. even if they look the same

VL revs to about 5500 RB25DET to 7500 GTR over 8000 and the pumps have different part nos

GTRgeoff Grand Master

GTRgeoff

Posted
Posted

I looked up GTS25's thread and gave the numbers to a Bearing distributor in Melbourne. About $50-60 each for the idler and tensioner from the NSK warehouse in Melb (which has hundreds) so I have ordered mine. They are starting to feel a bit graunchy and get a workout with all the track days. While I'm at it I'll get prices on waterpumps and post.

If the oil pump is coming off (a real biatch as the sump has to be dropped) do the oil seal on the crank, as well as the cam oil seals. They are all the same part and the RB30 cam oil seal fits all three. They are pretty hard at 100K so change at least the cam seals. The inlet cam on RB25DET is a pain with the VCT gear but you take the cam cover off and put a large spanner on the flats on the shaft then undo the big retaining bolt through the cam gear. No probs as you can't put it back together wrong with the keys. The cam bearing cap torque is 9-12Nm. I'll include the pages from the manual and for the cam belt.

GTRgeoff Grand Master

GTRgeoff

Posted
Posted

BSC Motion Technology is the supplier and Steve is the contact. Cost was about $104 for the tensioner and idler complete.

Located at Unit 3/1968 Hume Highway Campbellfield VIC 3061 Tel 03 9357 7515

Extremely helpful and at that price it is a sin not to change these little suckers when the chance arises.

The difference in smoothness of the new ones over the old ones is pretty distinct.

Cake Mentor

Cake

Posted
Posted

thanks for the help guys

got my service done yesterday

timing belt, water pump, thermostat, idler and tensioner bearings and some belts. i noticed this whine from the engine bay when revving in neutral today, don't notice it to be as loud before, what is it, and is it normal? attached mp3 file in a zip.

gtst25 Proficient

gtst25

Posted
Posted

Gidday all,

Just reading through this thread and am happy some other people are benifetting from the cheap idlers etc.

Just a suggestion, although it's probably not in the right section - I reckon it'd be a great idea to have a section just for part numbers, from timing belts, waterpumps etc to t4 compressor wheels.

No BS in it - maybe this could be edited out - just say r33 gtst series 1 timing belt........

R33 input shaft bearings for g/box......

I'll be doing my g/box bearings soon!

I can't count how many times I've been to mr nissan and had to wait for 40 minutes for someone behind the counter who doesn't know a wheel form a tyre to find the part number of something.

If you know the part number they can tell you the prices and availability immediatly.

Anyway, post away if you think this is a good idea.

Cheers

(B1) MR_fanny Grand Master

(B1) MR_fanny

Posted
Posted

yes i think its a good idea. ive been keeping part numbers in a txt file and adding too it when i see something new:D ive only got a handfull so far. good idea to put contacts for cheap parts there too.

as for the whining noise does it eventually go away geoff??

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