182 MG Tech | Faulty Front Pulley on MGB

Showing the effect of a cracked pulley or worn crankshaft

[petercurtis]

Hi John, thanks for this video. I have an oscillating crank pulley that I need to replace. Any tips about how to do this without removing the engine? Should I put a new woodruff key in as a security measure? Thanks for your advice: it’s also lovely to hear your stories (sometimes horror stories) about cars, people and places you’ve seen in the US. From the UK they sound even more interesting. All the best, and keep the videos coming!

[Oldporchesrule]

Sir, can you fix the timing chain with the engine in the car? Can the pulley come out when motor is in the car?

[PobOxfordV]

I've had this problem on a B series 1620 motor, in my morris. unlike MG's they had acast iron pulley in lieu of riveteted steel one, The movement broke the casting away on the back of the pulley, and made the rattle worse. Turns out the woodriff key was slightly loose, and I was able to source a tighter fitting one from my local MG parts dealer.

[aos]

Great work, btw what camera did you use to record this?

[strovato]

John, Early Miatas sometimes develop a similar problem. The most popular approach, other than engine or crankshaft replacement, is what is know as "the Loctite fix." You can find details at miata.net in the garage section. I'm not sure if this would work for you, but I thought you might be interested. I'd be very interested in a follow-up video to see how your solder approach works out. Thanks.