drive pinion on a Ransomes Marquis
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mistermowerman
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Hello , the sprocket is most likely on a left hand thread ,seeing that the sprocket is ruined already, grip the shaft in a vice and undo as if you are tightening . Gary
Thank you Gary.
Now I found out that the bearing misses a ball and is blocked. My spare-bearing doesn't fit. Where can I buy one - for a Ransomes Marquis MK 5M.
Thank you
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mistermowerman
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Hello ,if you look in Yellow Pages and see if there is a bearing supplier local ,if you take your old bearing with you they should be a able to match one up as they are a standard bearing .Other wise if you have a bearing of the same type you can fit another roller ball by twisting the cage around then pop the other ball in , then wash out the bearing with petrol and repack with grease .Gary
Thank you.
I did find the bearing 1203 and replaced both. It works.
But now I have another problem:
There's a knocking noise coming from the flywheel.
It seems that the drive shaft from the engine isn't fixed for 100% to the flywheel.
if you turn the flywheel for a few millimetre, the drive shaft isn't turning.
Screw nr 3 on the flywheel seems not to be tightened for 100%, when i tighten the screw
there no knocking noise anymore for 1 minute, then it comes back.
Changing the screw nr 3 and nr 2 doesn't help.
How can I fix this?
Thank you.
Picture expl:
1 - drive shaft
2 - screw
3 - screw
4 - flywheel
mistermowerman
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Hello ,just to confirm that you did not lose the drive key on the engine drive shaft when you put the flywheel on.If it is there make sure it is not worn(not square) if you need another one it is a standard size .Gary
Thank you once more for your help!
I used this machine for 1 year and it was absolutely running fine.
All of a sudden the knocking began.
To take apart the flywheel, do I dismantle the drive shaft+clutch?
How can I take the flywheel?
Thank you, Gary
mistermowerman
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Hello ,i asked about the flywheel key because you said there was free play from the engine shaft to the heavy cast flywheel located by the grub screws you had pointed out ,that would cause a knocking noise ,otherwise it may be coming from the clutch which is bit attached to the flywheel and covered by dish attached to the shaft .the answer to your other question is you will have to take the shaft out again or move the engine back .give it a go ,best of luck Gary
I removed the engine from te mower, and took some pictures.
The key seems to fit on the flywheel but not on the engine's output shaft.
You can easily move it, it seems to small.
Is it a wrong key?
I have a spare Marquis but with a BSA engine, I could take that key if it fits.
"picture 1": the keyway on the engine's output shaft.
It doesn't seem damaged to me.
"picture 2": the key in the flywheel.
"picture 3": the key with its sizes. 4,4mm x 4,4mm x 44,3mm,
if you look closely you'll see it has a bit of damage of the screw
"picture 4": the key on the engine's output shaft.
It doesn't fit for 100%, it is a little loose, easy to move.
"picture 5": the flywheel cleaned.
Thank you,
mistermowerman
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Hello ,i think we have found the problem ,the flywheel in the past has come loose on the shaft causing the damage ,you will need to clean the two grooves and using a new or perfect key put it together, if the groove on the engine shaft is not perfect the key will not locate the flywheel . There is some liquid metal stuff in tubes that may mend the damage though .Gary