[Healeys] 1275 Engine timing and carbs

Bob robertlarson at att.net
Tue Dec 29 16:52:50 MST 2009


I have an old tool very similar to this:

http://store.royalenfieldusa.com/top-dead-center-tdc-finder-tool

It has worked fine for me with motorcycles.

However, who ever came up with this bubble trick all I can say is,    
THAT'S CLEVER!!!

Thanks for sharing Kees.

Bob

Oudesluys wrote:
>
> One way of doing that is to make an adaptor from a sparkplug to blow 
> bubbles from soapy water. Inserta few drops of heavy oil on the piston 
> to create a really good seal. Put the piston in TDC as well as you 
> can, fit the adaptor, stretch a film of soapy water accross the 
> opening and find the position the bubble is at its biggest.
> That is TDC.
> It does not sound like very sophisticated technology but it works, you 
> do not need special tools apart from making up an adaptor from an old 
> sparkplug and it is extremely accurate.
> Kees Oudesluijs
> NL


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