Re: [HSS] 1920 clatter

Unknown

Martyn Hudson wrote:

>

> Before I delve deep within can anyone give me benefit of experience. My

> 1920 Model O has developed a disturbing clatter in the front end which i am

> certain is not in the crank. My motor has been fitted with a belt driven

> oil pump behind the water pump and as the 'oil governor' appeared to be

> affecting the smooth control of the throttle I removed the control arm to

> the old unused pump. Since the the clatter has increased about 50% , could

> be coincidence but I leaned that way. The engine is the earlier gear driven

> timing unit rather than the silent chain. I have never ventured into the

> front of it ir got my head round this governor device, any help welcome

>

> Cheers

>

> Martyn

>

> UK

>

Martyn, I would whip the timing cover off pronto and check what is going

on. It may just be backlash or wear in the timing gears. By govenor, I

assume you mean the oil pump stroke regulating mechanism? If you have

disconnected this, I suggest you re-install it, as the eccentric could

be roaming at will. is this perhaps the source of the noise? Is the

clatter th same frequency as the engine revs, or is it slower? If

slower, it could be the oil pump gears, but I doubt it, this usually

manifsts itself with a regular grating noise, about every two or three

seconds with the engine idling.

Geoff.