Under the head

Previously John Pullen-Appleby wrote:

Hello All,

I took the head (s) off the navigator yesterday. Considering the crimes of a previous owner I was pleasantly surprised. They seem to have build the engine many years ago and never started it or put. Everything is not far off finger tight. There are a few dings in one head and slight chipping of the cup on one cam follower.

The head gasket was some odd composite thing--copper with something sandwiched in between.

The pistons look clean and the valve do not appear pocketed. I have taken the barrel off yet--I believe there are some screws that need undoing first.

The spaces between the rocker covers etc contained piles of spherical lead shot for some reason.

Here is the dinged head--it looks awful here but the marks (not the black ones) are just to the right of the exhaust valve. There are spigots sticking up from the barrel which I believe is significant.

Here is the head

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navigator-head-jpg

Here is the pinion I need to remove.

Last question (promise) what diameter is a Navigator stem post.

The BSA one I have is over an inch and its cones will not fit a navigator cup so a re-think is called for here.

Cheers

JPA

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Previously Jonathan Soons wrote:

Previously John Pullen-Appleby wrote:

Here is the pinion I need to remove.

Last question (promise) what diameter is a Navigator stem post.

The BSA one I have is over an inch and its cones will not fit a navigator cup so a re-think is called for here.

Hello Jonathan,

Which puller is it? and, where can I get one? Is the drill chuck type thing that the corresponding pinion on a triumph needs--they all seem to say they fit Nortons--I had no idea they did. I have done it with two long levers before but--if i had one it would fit every engine I own bar one. I am resuming this is it

Cheers

JPA

You will have to buy the puller for that pinion. The good news is that you can't live without it and it fits so many Nortons and Triumphs.

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puller-jpg