Honda-SOHC

I am told they take up the thermal expansion and also act as a damper? Having thought about it for a while, I approached the problem from another angle and have managed to sort it. Just checked out which other Honda's used the same part, the CX500 was the best one. Went onto eBay and somebody was selling the used CX500 slider pins that I required at a very reasonable £20 for all three. After hours of searching for CB750 items without luck, jobs done. Easy once you figure it out, I guess most manufactures use identical parts in many models to save costs. A lesson I shall remember in the future. Thanks all.

Thanks for the reply Spitfire. Didn't make myself very clear on the rubber bits, sorry. Its not the gaiters that I need, its the rubber sleeve that goes directly onto the shaft of Pin-B and sits in the recess. Not sure these are available, the pin-B's certainly aren't. Not sure what to do about that, maybe try some rubber tubing or perhaps get some solid ones made. Anybody got any ideas, I guess somebody has encountered this before. Cheers

You know 'Bike Pusher' your probably right about the 'Simple maths' quote being nonsense.

Had recently read an article about the birth of the Superbike in an old American magazine where it compared various models such as the CB750/Z1/GT750 etc and that is what started my train of thought. The reasoning in that article of why it sold so much better than the competition was due to the cheap price. Apparently they not only matched the Triumphs price but beat it by a good margin.

But you know, they never mentioned your points about labour costs, exchange rates etc. The assertion from the article was that the CB was deliberately built down to a price point (maybe some degree of truth in that) but any successful product needs to hit a price target. And like I said earlier "As a corporate decision it was a master stroke that almost single handedly broke the British bike industry".

Have thought about that article for a while now, and read the comments on here, especially the comments about using tried and tested technology, Yes, I think I may have been wrong about the CB750, and that article was just full of biased bull**** There, said it. Isn't it cr** being wrong LOL.

The problem with the CB750 was in the original design spec. The designers were told in the mid 60s that the CB had to be in the USA showrooms at the same price or less than the Triumph Bonneville. As a corporate decision it was a master stroke that almost single handedly broke the British bike industry. But from an engineering point of view it left the CB hopelessly compromised ie. cheap to manufacture. Hence the plain main/big end bearings, no shells for the cam, small ends straight in the conrods, plain primary chains, a frame that wont allow cam cover removal etc, etc. The Kawasaki 900 engine was designed to be the the best it could be (with 70s technology) and was far more expensive new than the CB. This cheap and simple engineering is what we are now fighting against 40 years on.

Yeah I am expecting a hit from import duty etc. The bottom line though is I just could not find a good used one anywhere else. There's a few on a Dutch breakers site but the caps are missing and as you know they are line bored so without the original caps they are just scrap. Are these things possible to repair at any sort of affordable price, because these will start to become a major headache for CB750 owners pretty soon. Back to the 1000 mile oil change regime I guess.

Thanks Bryan will give you a ring Tuesday after 8pm. Cheers Roy.

The cam is actually very good. But it would be as its much harder than the soft alloy, and its not picked up at all. Are these carriers still available new, as an eBay item may be no better than mine. If it needs changing now's the time I guess whilst its still on the bench. Cheers.

Hi. Just putting the top end back on an F2. Whilst cleaning all the parts and clearing out the oil drillings, I have found some damage to one of the journals on a cam carrier. The oil feed hole was partially blocked and that I assume was the cause. I have dressed the journal lightly with very fine wet & dry and there is definite scoring evident. How much damage can be safely accepted on this part, and if replacement is required would I have to replace both carriers and the cam? Cheers.