Honda-SOHC

You could try Joy Engineering 01279 730682
He's a one man band so it could take a few tries to get him to the phone if he is halfway through a job.

Good luck
Eric

To each their own, but if it were me I'd polish it and professionally at that.

Eric

Thanks Ash
What I'm trying to figure out is what crankcases were used on the racing bikes at the Daytona 200 race in March 1970. Originally these bikes had crankcases made of magnesium, but due to unexpected expansion problems and the crank tending to bind, the cases were changed with new alloy ones that were flown in from the factory in Japan. Therefore, if the method of production changed in September 1969 its logical that those crankcases were made by the pressure die cast method and not the earlier sand cast process. I've been told that the original magnesium cases were smashed in order to recover the pin that holds the kick start shaft in place and hence the drive for the oil pump. One set of magnesium cases apparently burned rather well after Ralph Bryans crashed in practice.

I believe there will be images and video on dss website in due course as there was a videographer on site all day. Funnily enough his special won first quelle surprise.


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Awards involving a subjective assessment will often be called into question, after all we all have different tastes, but any award that could lead to the suggestion of favouritism should have been avoided.
However, it was a great day out, blessed with superb weather and a chance to meet and talk with some very nice people apart from the disrespectful individual who put his coffee cup on my petrol tank.

Dynoman in the USA has a whole range of copper gaskets, check out the SOHC page on the web site http://www.dynoman.net/bikepages/sohc/index.html

I use a copper gasket on my 998cc engine - billet JMR block with nikasil bores and a thin wire 'O' ring fitted around the top of each bore. A quick spray over with 'Copper Spay-a-Gasket' helps to seal the whole caboodle.
My CR750 also has a copper gasket fitted, no leaks there either.

Eric

Try John Kenworthy of Sunrise graphics / FAB Fastenings  http://www.sunrisegraphics.co.uk/

Eric

Free shipping to England! I don't know the cost of shipping from the USA for such items, but sounds too good to be true to me.

On peering into the oil tank on my CB750 to check the oil level I spied absolutely nothing. There was plenty of oil in there when I parked it p for the winter, but its all in the sump now having obviously leaked passed the oil pump. I'm assuming it shouldn't do that and the pump either needs a complete rebuild or at the very least a replacement oil leak seal (Part No. 15166 300 000), which is sadly no longer available. Where do I go from here?

Eric