Pulley

[Troyboy]

Do you have a part no. for the 'Diesel' pulley ?

 

The part number for a BMC 1.5 diesel pulley is 12H 253 or 12H 1460 according to the BMC parts book I've got .Both numbers are listed as alternatives.

[ditchy]

 

Did you find one?

I had to use calcutt in the end and that was for one off of another engine. All up and running again now.

[DHutch]

If that isn't the most helpful post I've ever seen, I don't remember what the better ones were! I don't have a BMC engine, but I might go and buy one just to ask questions about it now! Nice one, Richard, have a greenie.

 

Indeed.

[Chalky]

I've just bought a spare pulley for my MG ( plan to fit a trigger wheel to it ). When it arrives I'll measure it and post the dimensions in case someone else needs a replacement.

[Tony Brooks]

I've just bought a spare pulley for my MG ( plan to fit a trigger wheel to it ). When it arrives I'll measure it and post the dimensions in case someone else needs a replacement.

 

But how are you going to test the frequency of torsional oscillation the rubber member is designed to damp?

 

I know that if its is not correct it can snap the crankshaft and the MG has a petrol engine not diesel so the frequency MIGHT be different. I would say part numbers or input from whoever designed them is the only way to really know if they will do the job.

 

I am not saying there is a difference or even if there is that difference would snap a crank but is it worth the risk? Richard has shown how the split boss can be overcome.

Edited August 31, 2016 by Tony Brooks

[DHutch]

If its running at the same speed, with the same no of cylinders, the firing frequency will of cause be the same.

 

A petrol engine will also have a less harsh firing force, however, if its designed to have a damper removing it is obviously always a risk to an extent.

 

 

Daniel

[Tony Brooks]

And compression forces, I agree the frequency will be the same but I am just not so sure about the forces.