Fitting Valve Springs

So next need to fit the valve springs. Now in the past when I have done this I have found it quite fiddly.. The collets that secure the spring to the top of the valve are small and always flick out into oblivion if the spring isn't aligned when you release the pressure...
So this time I made sure I had plenty of collets. In fact I had twice the number required as I had stripped 2 heads, the 9.5:1 and 7:1 compression.

 -o-

LATEST NEWS: O yes, should have said, idea of fitting a supercharger is on ice until next winter. Moss have temporarily discontinued the supercharger kit while they carry out a redesign. So will be going back to plan A. Refitting the 9.5:1 and going back to Lucas Petrol Injection.

 -o-

 So back to the head.. The procedure for fitting the springs is relatively simple and requires one specialised tool, a valve spring compressor, which you also have to use to take the springs off. Stage 1. Fit the inner valve seat and the rubber o-ring valve stem oil seal. 2 & 3. fit the spring, spring cap and the valve spring compressor and compress the spring. It is worth noting here that there are 2 types of cap on the TR engine. One is in two pieces and the other one piece. The one piece cap fits on the inlet valves while the two piece is for the exhausts.

The two pictures show how the compressor is seated on the head (actually the close up shows the compressor slightly off centre, but I changed this before fitting the collets). 4. insert the two collets into the groove at the top of the valve. If you can't get them in tighten the compressor a bit. I find a bit of grease on the collets helps them to stick. now release the compressor. The release the compressor, and if all is right the collets should drop into place like those shown in 4.