Monro tiller. Villiers mk12 coil backplate removal

[mitzygolf]

Hi I am renovating a Monro tiller with a Villiers mk12 engine fitted. I am going to have to fit a new coil but I’m having problems removing the back plate. I removed the four nuts that seem to be holding the plate on and tried tapping the plate off but it seems stuck fast. Is there anything else I should be doing? Please see photos.

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[davet]

Hi, The manual shows one other attachment. A countersunk screw at 11 o’clock looking rewards. I thought it would be visable in your photo , it should be hiding behind the LH end of the coil. Might require a right angle screwdriver.
Good luck ,

Regards. DaveT.

[mitzygolf]

Do you think this could be it, to the left of the switch wire connection?

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[davet]

Hi, There is a download manual on http://www.winglet .
I think it’s EM220 , item 45 you need to find.
Set screw .

Regards. DaveT.

[mitzygolf]

Thanks DavaT. I couldn’t load the online page that you posted but have included photos of a parts lost that came with the motivator. Is this what you were referring to?

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[davet]

Hi, The on line book is 1962 at 2 shillings so is later.
The large general assembly picture of the engine shows the set screw as item 45. EM220 . It should not have changed.
See if your copy has that picture.

Regards. Dave

[mitzygolf]

Thanks DaveT, found the screw and removed the backplate. Brilliant.I wonder if you can help me with one other question. I took the chain cover off the drive between the engine and tiller section. It was packed with 70 year old grease which I removed. Any idea what type of grease I should re-pack it with. Thanks again for your help

[charlie]

The recommended grease for chain lubrication is Castrolease Medium.The chain should have 1/2″ of movement on top run when correctly adjusted.
It is worth noting that the main gearbox should use a straight gear oil not EP90. Castrol D or equivalent SAE140 gear oil is recommended. I use Morris oils AG140 Classic Gear Oil. Castrol XL SAE 30 for the engine, Morris Oils Golden Film SAE30 Classic motor oil is what I use.
If you drop me an email with your email address I can send you a copy of the machine manual.

[mitzygolf]

Hi Charlie, I don’t know how to message you personally but my email address is (email address deleted to protect privacy) Thanks for your help.

[charlie]

email sent and previous post edited to protect privacy.

[mitzygolf]

That’s fantastic. Thanks Charlie much appreciated

[mitzygolf]

Just looked at the chain and it looks very slack. There is no adjustment so should I remove one or two links and fit a connector link?

[charlie]

Later machines had a simple plate which chain runs over to adjust tension, (part number MT338B in series 3 manual) . If slack is more than 1/2″ then try taking out one link if there is no adjuster.

[mitzygolf]

Ok thanks

[mitzygolf]

Hi Charlie, I understand you are the man when it comes to dating Monro tillers. When I bought the tiller it came with the original receipt from 1954. I wonder if you can confirm that date from the ID plate for me. Thanks

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