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m20 Engine Rattle


Hi Guy's,

I have an engine rattle.
I need to sort this now yet had it since Normandy last year....not rode it since to be honest.
Talking to a few guys they seem to think it could possibly be valve cams.
Is this something that I would need to set timing in a certain place etc before I remove the three hex pins and plate holding the cam pins/gears etc
I have a used replacement to swop as an assembly from another bottom end.

Your help would be much appreciated.

Regards,
Paul

email (option): eastwood007@ntlworld.com

Re: m20 Engine Rattle

You can remove the plate with the engine in any position. There are 3 bolts and the 2 cam oil feed bolts to undo. After which you can revolve the engine to relieve the valve spring pressure to pull the cams off their spindles. Ron

email (option): ronpier@talk21.com

Re: m20 Engine Rattle

You'll have to remove the crankshaft nut as well....Ian

email (option): ian@wright52.plus.com

Re: m20 Engine Rattle


Thank you Gentlemen, very much appreciated.
Are there any timing marks I need to be aware of before rebuilding please or can l just rebuild?
Regards,
Paul

email (option): eastwood007@ntlworld.com

Re: m20 Engine Rattle

There are timing marks to line up which is simple and detailed in the workshop manual. So also is the fairly unique way to adjust the tappets. It would be a good idea to obtain one. DVD's are available on the technical pages of this site. Ron

email (option): ronpier@talk21.com

Re: m20 Engine Rattle

Has that one got left hand thread ?

Re: m20 Engine Rattle

The crankshaft nut, I mean

Re: m20 Engine Rattle

No, the nut has a 'normal' thread...A shake proof washer is fitted under it....Ian

email (option): ian@wright52.plus.com

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