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E: Engine Valve lifter cable

Louca

New Website User
VOC Member
Hi everyone, I’m new to the owners club after just acquiring my dream motorcycle a Comet 500 1951, and would be very grateful for some advice on changing the valve lifter cable as it has broken, away from the lever end , how easy is it to change ??? I have some good basic skills ! The lever was very difficult to start with , it never pulled in with great ease , should it ?? Thank you
 

davidd

Well Known and Active Website User
VOC Member
Louca,

In general, I would not use the decompressor cable unless you are turning the engine with the kick start lever at the same time. Keeping a small amount of pressure on the compression lever on the handlebar while turning the engine over will allow the cam lobe itself to lift the cam follower rather than letting the decompressor cable do all the work. As you turn the engine the decompression lever will easily go to the handlebar and once it is there it is usually not under any severe stress.

The cable should be easy to replace.

Parts Book.PNG
The end of the cable slides into the end of part number E218, and you should be able to see the hole in the hex end of that item.

I thought there was a sleeve and a cable anchor over the end of the E218, but they are not listed here. I will leave the details to someone who has changed one recently.

The Comet is a wonderful Vincent to own, but it was not well-represented in the Vincent literature compared to the twins. It is often difficult to find drawings related to the Comet.

Best of luck,

David
 

Louca

New Website User
VOC Member
Louca,

In general, I would not use the decompressor cable unless you are turning the engine with the kick start lever at the same time. Keeping a small amount of pressure on the compression lever on the handlebar while turning the engine over will allow the cam lobe itself to lift the cam follower rather than letting the decompressor cable do all the work. As you turn the engine the decompression lever will easily go to the handlebar and once it is there it is usually not under any severe stress.

The cable should be easy to replace.

View attachment 43957
The end of the cable slides into the end of part number E218, and you should be able to see the hole in the hex end of that item.

I thought there was a sleeve and a cable anchor over the end of the E218, but they are not listed here. I will leave the details to someone who has changed one recently.

The Comet is a wonderful Vincent to own, but it was not well-represented in the Vincent literature compared to the twins. It is often difficult to find drawings related to the Comet.

Best of luck,

David
I already am an H.R.D member ! Thank you
 

Louca

New Website User
VOC Member
Louca,

In general, I would not use the decompressor cable unless you are turning the engine with the kick start lever at the same time. Keeping a small amount of pressure on the compression lever on the handlebar while turning the engine over will allow the cam lobe itself to lift the cam follower rather than letting the decompressor cable do all the work. As you turn the engine the decompression lever will easily go to the handlebar and once it is there it is usually not under any severe stress.

The cable should be easy to replace.

View attachment 43957
The end of the cable slides into the end of part number E218, and you should be able to see the hole in the hex end of that item.

I thought there was a sleeve and a cable anchor over the end of the E218, but they are not listed here. I will leave the details to someone who has changed one recently.

The Comet is a wonderful Vincent to own, but it was not well-represented in the Vincent literature compared to the twins. It is often difficult to find drawings related to the Comet.

Best of luck,

David
 

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