10 replies to this topic

[min ritz ryan]

Hi all, as the title states. When I accelerate fast its revs but doesn't move, but when I gradually accelerate it does move.
Could anyone tell me the reason to this unusual behaviour?
Baring in mind I do need to change my clutch oil seal. Unless I have just answered my own question, with there being oil on the clutch? But the clutch is fine apart from the oil seal

If anyone could point me in the right direction, that would be great, thanks

[sledgehammer]

Oil on clutch linings would be my first guess or worn clutch

is oil coming out of circlip hole ?

was the clutch adjusted correctly ?

I would replace clutch plate when doing seal - as even when cleaned the oil can still be in the friction material

[Carlos W]

Sounds very much like the clutch is slipping!

Oil on a dry clutch will make this happen

[Vipernoir]

Clutch plate contamination and primary gear oil seal gone.
You'll need to replace both.

Best stock up with plenty of brake cleaner to clean the flywheel, backplate and housing thoroughly while it's apart.

[min ritz ryan]

Which one is the circlip hole?
Oh, how joyful, only put a new clutch in 6 months ago.
What equipment do I need to clean the plates then, besides the cleaner?

[min ritz ryan]

Which one is the circlip hole?
Oh, how joyful, only put a new clutch in 6 months ago.
What equipment do I need to clean the plates then, besides the cleaner?

[Cooperman]

What you have is called 'clutch slip'.
Don't worry about where the hole is, and it's not a circlip, it's a 'jiggle-pin' (correct term).
You need a new primary gear seal (also called the 'Red Seal'), a brand new centre plate, a new crankshaft bolt lock washer and loads of Brake & Clutch Cleaner to get the oil off of the flywheel, back-plate and the inside of the housing and clutch cover.
You will also need either the seal installation tool or some masking tape to cover the primary gear splines when fitting the seal to avoid damage to the seal lip.

[min ritz ryan]

Oh right, okay.
Yeah, ive got a new seal and purchasing a new plate.
Can I just use sandpaper with brake cleaner, or what tool do I need to clean it with?

[cal844]

Oh right, okay.
Yeah, ive got a new seal and purchasing a new plate.
Can I just use sandpaper with brake cleaner, or what tool do I need to clean it with?

brake cleaner and a few rags or an airline :)

[sledgehammer]

sorry meant split pin hole - don't know why I said Circlip (face palm)

[bmcecosse]

But you also need to find out why the oil is getting forced past the seal - so look to the crankcase ventilation. Do you have at least one breather connected to the carb ?? If you take the oil filler cap off and rev up - is there a plume of smoke/fume ?