lol well if i knew it was just the rings then yeh i probably would it aint that big a deal is it

Done many motor bikes, it is a good job to do as cc is increased power is brilliant and reliability improved.
If you have a the time it's quite therapeutic lol

how is the cc increased?

You would do the HG so increasing the overall cc by MM lol

Sorry meant Plus the bore size due to rebore doh

My two stroke moto crossers where done nearly every season up to two rebores, once on a 4 stroke, more of a pain on cars etc, but the power improvement is very noticeable. Unlike buying a recon you know the engine, and if you have a garage / space to fully rebuild the engine is a massive achievement and well worth it, the engine is as good or better than new.

Broken ring and in need of a rebore...sounds like my ex bird. I'm not sure how much it would cost but a cylinder leakage test with a compressor should be more accurate. For example if you can feel the compressed air coming out of the exhaust its a sign of a dodgy exhaust valve not seating right, air out the inlet manifold-inlet valve issue, air coming out the engine breather pipe might suggest rings.

it is a bit rattly could be a bit of ring in there somewhere!
could badly adjusted tappets cause the valves not to seat properly

@alex200 is it just a case of take a glow plug out at a time and blow air through the hole?

well i have disconnected the catch can for now and put the PCV back to how it should be into the intake hose oil pressure seems to have droped a bit so it could be ok. i did blow through the can and it didnt feel restricted

so watch this space

Took the catch can out today it has been working well seperating the oil and condensate out too well I think!

Anyway it has gone, back to to stock set up

Fitted my new vacume tank

Found the bottom pulley delaminated in a bad way so stripped it all done just need to order a new pulley from milners monday moring and get it back together tueasday.

I was going to change the water pump and cam belt but upon inspection the cam belt and balance belt look in great condition so ill leave it for a year or 2!

@123hotchef ... you've got it all apart, why reuse old belts ?

Those dam pulleys, what do you think will happens if you weld the inner and outer part solid?

I vaguely remember , from my OC days, that there was a solid pulley available....did I imagine that?lol

I have not taken the belts off @ronniecabers just took the cover off for inspection, I could replace them I have a kit here for truck 1 but the belts looked in great condition they were changer in 2011

I am sending the pulley to @alex200 he is going to tig weld it for me I didnt fancie stick or migingit up tig woud be much neater and stronger without upsetting the balance of it @Danne

but surely if you are taking the bottom pulley off the belts will be coming off?

No you can leave the belts on.

only the power steering belt and 2 alternator belts the timing and balanace belt aint touched

see a bit of misunderstanding from me there.... I always thought the delamination caused the cam and balance belts to run out of true, which is why it was most urgent to get it dealt with...

oh it is urgent to get it delt with it can wear the plastic cover away then take out the reluctor ring or timing belt if you are really unlucky

So being a bit thick here, take it you still need to take the pulley off to get the plastic cover fully off to change the cambelt?

correct mr K

so why you have that pulley off, would it not make sense to change the cambelt? So you don't have to strip it all down again...piece of mind and all that....

it would then i would want to do the water pump too. if was done in 20011 at 99k now on 140k so i think i will wait

Well I am going to bite the bullet I think and replace the water pump rad all the belts and tensioners flush the cooling system through.

I also topped up the viscous fan with silicon oil today

Personally think thats a good idea to do the belts etc ...its 5-6 years ago they were done and only about 10000 miles short of the 54000, you have most of it off anyway so might as well....