My M18 got very rattly on a trip out last year. Investigation revealed that the nut had come loose on the inlet rocker shaft and had actually fallen off. I had to dig it out with a telescopic magnet thingy. The rocker arm hadn't come off the splines, fortunately but it was loose and floating about sideways abit. The arm never disengaged from the pushrod, thankfully,
Valve springs
- Pharisee
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Re: Valve springs
I'm from the Fens.... Gimme six.
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Re: Valve springs
From time to time I have read “you will need very thin spanners to adjust the push rod lengthâ€. I can readily see that most of us will need three spanners, but why a thin one?
Pharisee's photo of his open rocker box helps make my point. Observe the image in his posting above. Trying to get a tight grip on the hexagonal cup on top of the push rod is easy. Simply rotate the crankshaft to cause the push rod to rise in the window, and use a common spanner to complete the task. Roll the engine back to TDC to check your work.
Ciao, DC
Pharisee's photo of his open rocker box helps make my point. Observe the image in his posting above. Trying to get a tight grip on the hexagonal cup on top of the push rod is easy. Simply rotate the crankshaft to cause the push rod to rise in the window, and use a common spanner to complete the task. Roll the engine back to TDC to check your work.
Ciao, DC
Dick Casey
The RideNut
The RideNut
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Re: Valve springs
You will find that most "standard" thickness spanners will not get at the bottom nut without fouling the one above it. I ground down an old spanner so it fitted as I had a spare.
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Re: Valve springs
Don't worry; if you've only gone a couple of miles Dudley would probably be there already to chat with, (or arriving soon after in the breakdown van).mikeydpippin wrote:I don't want to be the one in the rear view mirrors sat on the side of the road...on the first rideout .
'There is a tide in the affairs of men
Which taken at the flood............'
Which taken at the flood............'
- Pharisee
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Re: Valve springs
Adjust the clearance and do the locknut up 'finger' tight. Rotate the engine until the valve is at full lift and there is plenty of room to get normal size spanners in to tighten the locknut. Check at TDC again afterwards.Cerberus wrote:You will find that most "standard" thickness spanners will not get at the bottom nut without fouling the one above it. I ground down an old spanner so it fitted as I had a spare.
I'm from the Fens.... Gimme six.