With costs mounting by the day I have been debating reusing the camshaft from my original 1967 MGB engine that has about 35,000 miles on it. As I’m rebuilding the engine pretty much completely the thought of buying a new camshaft has been going through my mind but I’ve hesitated for weeks. Now since I’m ready to put the engine back together a decision needed to be made. The camshaft from the 1972 engine is toast with bad lobe wear as you can see below. Ready to be recycled!
I was researching camshafts a few days ago and came across an image that showed what can happen to a camshaft if you have a rod bearing failure as I did. Sure enough, the camshaft that I was planning on using has this issue. The connecting rod actual touches the camshaft shaft and wears into it on both sides. While this likely doesn’t really matter the number 8 lobe doesn’t feel quite right (slightly flattened) and after measuring is out of spec by about .005 compared to the others.
This wear has made me realize that a new camshaft is definitely needed and British Parts Northwest has a good sale on so an order went in. This camshaft is nothing special, just a boring MGB no performance boost special but my engine will still love it.