top end noise ( oh, sh1te!)

[Gadaffi Duck]

Eyup all,



Griff 500 40k- noticed its a bit tappety when warm at 2000rpm+. To me it sounds like a bit of top end wear (cams, followers or such like). I could be being a bit paranoid, but how much will it cost me to have top end overhaul, etc. Maybe even upgrade for a bit of extra grunt (not that there's a shortage of it anyway) Its not going to go BANG! is it?!?!?!?!



Tim

[NicBowman]

Obviously yes, but we were all too afraid to say.....



Nic

ps, I don't really know, but thought I beter say somthing. Good luck with it.

[ray_von]

NicBowman said:

Obviously yes

I agree

[tbdgriff500]

if it helps i have just had my top end rebuilt + some extras £2500 for top end including

fast 218 road cam + £2500 for extras.

[steve-V8s]

Mine went Bang after a top end rebuild so choose carefully.

Worth checking that it is not rattle from the drive belt tensioner bearings.

[Corky]

Gadaffi Duck said:

Eyup all,



Griff 500 40k- noticed its a bit tappety when warm at 2000rpm+. To me it sounds like a bit of top end wear (cams, followers or such like). I could be being a bit paranoid, but how much will it cost me to have top end overhaul, etc. Maybe even upgrade for a bit of extra grunt (not that there's a shortage of it anyway) Its not going to go BANG! is it?!?!?!?!



Tim

I have just changed my cam and associated bits for £1600.

[Reeso]

Mine had the same symtums. Whole top end rebuild at 26k miles plus a few extras .....



£4,500



Choose your fixer wisely and shop around.

[clive f]

you can do it yourself if you are capable, did mine for approx £750.

[ads]

Had mine done last year. Standard cam though. Just over £1000.

[Pasco]

clive f said:

you can do it yourself if you are capable, did mine for approx £750.

What exactly did you do clive?

[dnb]

Just rebuilt the top end of mine too. After 104,000 miles

Cost was around the same as Clive's.



I stripped, cleaned & inspected the heads (thankfully nothing wrong with the valve seats or guides), had the exhaust valves reground, new stem seals, 404 cam, new followers, new valve springs, tin head gaskets , new timing chain & gears, and new rockers & shafts.



Not started it yet, so I hope I got everything back together correctly!!

[apache]

Is it a rattle after revving?, ie as the revs begin to drop off, this could be expensive for you 500 boys

[ray_von]

Reeso said:

Choose your fixer wisely and shop around.

caveat emptor

[Pasco]

dnb said:

Just rebuilt the top end of mine too. After 104,000 miles

Cost was around the same as Clive's.



I stripped, cleaned & inspected the heads (thankfully nothing wrong with the valve seats or guides), had the exhaust valves reground, new stem seals, 404 cam, new followers, new valve springs, tin head gaskets , new timing chain & gears, and new rockers & shafts.



Not started it yet, so I hope I got everything back together correctly!!

Are you planning to be at the Growl Dave

[dnb]

Definitely will be at the Growl. But if I don't soon get the Griff running, it will be in the Impreza...

[red griff 500]

It may very well be leaking exhaust manifold gasket - this sounds like a mechanical knocking noise. Try tightening the bolts.

[Groomvroom]

apache said:

Is it a rattle after revving?, ie as the revs begin to drop off, this could be expensive for you 500 boys

So what will that be then? all the 500s I've owned have had a little chatter as the revs drop including after a refresh at TVR Power

[ray_von]

Groomvroom said:

apache said:

Is it a rattle after revving?, ie as the revs begin to drop off, this could be expensive for you 500 boys

So what will that be then? all the 500s I've owned have had a little chatter as the revs drop including after a refresh at TVR Power

He may be getting at crankshaft problems,but then what would I know

[Gadaffi Duck]

Thanks for all the reponses, geezers. Will consider options. I know its not the end of the world , but it gives me the hump if its not running perfect, PERFECT I TELLS YA!!!
(going for lie down, hate world, revenge soon, etc..............)

Edited by Gadaffi Duck on Thursday 24th May 22:23

[Lone Granger]

ray_von said:

Reeso said:

Choose your fixer wisely and shop around.

caveat emptor

make a lot more sense if people were allowed to list problems about suppliers so those without bigpocet + suitus syndrome and ignorant in long lost languages from afar, actually stood a chance...!! - I have had several people write direct revealing some horrific incidents from 'professionals' that because of this ruling, continue to bully customers...