Cam Shaft Bearing Holders and Cam Followers

I'm thinking with all that damage on the camshafts, we must be looking at damage on the bearing holders and tappet followers too. This is the centre journal:

 And these are the corresponding bearing holders:

 

 They don't look too bad.

 And this is the right hand side journal on the inlet cam shaft (click to enlarge):

 And these are the corressponding bearing holders:

 

And here are the cam followers.  Not sure if they need replacing.

More Camshaft Pics

I took them out to get a better look (and snapped one bolt in the process!).  This show the profile of the camshaft.

 And this is the damage to the lobes.

 And the damage to the journals.

Not Nice Camshafts

With the carbs looking good, my next step was to look at the tappets and cam chain and this is what I saw:

 

All these pitted cam lobes were on the right hand side on the engine, working on cylinders 3 and 4.  My dilemma is; what has caused this and if I replace them will it not happen again?  Blocked oil ways?

Fifth Start Up - Oil Leak Fixed - She Works

So I got a new oil pipe and tried again.

Back Together Again ....... Now a Massive Oil Gusher

So assemble all the carbs again and try to start her up.

Oh dear one of the stainless braided oil pipes to the non-standard oil cooler gives up.  I guess it had been rubbing on the exhaust header for some time and was worn through.  I had moved it off the header as I had seen a drip come out and in the process damaged it completely.

Now I have to wait to get a new pipe before I know if the carbs are any good.

Another Carb Strip!

Even though I was able to get some decent readings from my fuel level hose whilst the carbs were in situ, I was still not convinced that the floats were adjusted correctly.  In the first place I had had to bend the tangs on the floats themselves along way to get them to give the correct height readings.

I reasoned that the float bowl valves themselves (and the little springs in them) may have become worn.  So I replaced all the fuel valves:

This shows the difference between them.  I am hoping that the new one (top) will allow the float tang to be bent back to near horizontal, so that it lines up more precisely with the rest of the float metal part.

And then measured the float heights again.  This time the tangs could be bent back far nearer to what is considered normal.

 

This looks like I have not measured it correctly but in fact the camera was at the wrong angle.  The measurement is done to the top of the rounded piece of the float or the shoulder not the flat part.

 

 This looks better:

Compared to the old settting: