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Heavy Twins

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A technical forum for Model 7 to Mercury

Laydown gearbox 53 Model 7

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Canada calling. I have finished restoring a '53 Model 7 and an odd oil leak has cropped up. Oil is leaking through the steel kick start sleeve and the inner cover of the gearbox. I have checked thoroughly and it is no leaking through the kick start and the steel sleeve itself. I have check the Andover Norton laydown gearbox drawing and there is an item #79 shown but not listed as Andover do not make this item. Firstly has anyone out there experienced this leakage, and second is item 79 a seal, shim etc. Any thoughts would be appreciated.

SS Camshaft ?

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My Dommi 88 is fitted with an SS Camshaft ( marked T2219@3 ) it seems. Does this require Pushrods and Valve springs as used on the 650 SS and Atlas models to be fitted ? I came accross this advice in the Haynes Manual (chapter 1 -22 ) . My Cam is with Newmans being inspected for possible re-profiling and I now have 4 NOS Cam followers thanks to NOC members and the NOC shop. Thanks , Wayne.

 

rear brake plate

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I bought a rear brake plate for my Norton 650ss - advertised as Dommie plate but the brake shoe pivots have wire circlips instead of retaining plate/tab washer and bolts.

I assume it's an earlier plate from ES2 or very early twin.

Does anyone have any knowledge/experience of these plates, please?

Thanks

oil filter and chain adjust

Forums

This is regard to my previous topic "Chain Adjustment". So I received the correct aligning [dowel] bolt for the rear wheel to brake hub and believe it or not everything now lines up far happier although still displaced towards the timing side.

Continue to rebuild I would like comments on fitting the detachable oil filter I bought from RGM, does it fit into the feed to the engine?

Many thanks again to those who helped with my "chain Adjustment" topic

 

 

 

 

 

 

 

 


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