AO

I check mine annually in the Spring. Easy enough to do. Takes about an hour start to finish (includes 2 beers.)

This spring I get to also flush the brakes and PSD. Also time to change the coolant. Yee haw!

9two8

I f anyone could advise me on the following I would be most gratefull. In my particular case I,ve had two belt replacements, second time was in January 2007 with pump and rollers replaced. Since then the car has done only 800 miles.
The car is off the road from November to March, heated and dehumidified garage. As some would guess, it adds up to quite expensive routine maintenance if the belt was changed every 800 miles . What would the members advice be please ?


Am I paranoid about this, well yes a bit I guess ?

Ken
80 928 S
5 Speed

UK

Landseer

Drive it.

AO

+1

Call us back when you hit 1,500 miles.

9two8

Ok then ..., do I change it ? or run it ?

Ken
80 928 S
5 Speed

UK

SeanR

Run it and drive it more. Letting it sit will cause more issues than the timing belt.

Landseer

Honestly?
Enthusiast opinion here.

I'd run it for 100 miles.
Pull the cover and check / adjust tension, check oil level and tracking + take a quick look for water leaks attributable to the pump.

Then, drive it.

AO

That's kind of what I meant, but I meant to take it to 1,500 miles which is when the belt should be re-tensioned.

9two8

Thank,s guy,s !..., any thoughts on the belt age ? 5 yrs

Ken
80 928 S
5 Speed

UK

James Bailey

I would run it.......it is not a valve bending engine. I ran the old very brown 1980 for about 8 years and untold miles did many driving events many hours of track time and had no idea how old the belt was when I started ! And yes it did finally shear off some teeth and jump timing. Simply replaced it after having AAA long distance tow it home. I always figured I would knock out the 2/6 rod bearings long before the belt failed

9two8

Many thank,s for all the advice !



Ken
80 928 S
5 Speed

UK

dr bob

Belt replacement solely on age is a foggy guesstimate at best. In that perfect climate controlled storage, no ozone exposure, no oil or coolant leaking onto the belt, everything clean and wonderful all the time, new modern-material belt should be good for ten years. (in my own opinion, YMMV of course) A regular visual inspection is required to make sure that all the storage parameters are met, and no cracking or checking of the rubber. But otherwise it should be OK. The modern kevlar reinforcement in the belts doesn't take a set the way the old steel-reinforced belts did, so properly storing without driving isn't as dangerous to th belt as it once was.

9two8

..., thank,s Bob

Ken
80 928 S
5 Speed

UK

Pcplod

Could someone outline what this type of annual inspection would consist of?

I think my belt is coming up on 6 years and about 5-6K miles (previous one changed by the PO at the local 928 guru), so I am thinking I might have to do my first TB/WP job on a 928 this summer. I know that there are a lot of good write-ups out there, but I am still more than a little nervous about doing this on my own.

James Bailey

Look for missing teeth on the belt by turning the engine with the crank bolt (remove spark plugs) all the way around. also note any wear on the edges of the belt which come from failed bushings bent shoulder bolt etc. The belts do not break they have teeth fall off and eventually slip once enough teeth fail.