Is this still the way to install the valve guides?
Depth for the inlet is 1 1/8" = 28,6 mm and 15/16" = 23,8 mm for the exhaust.
Do you need to heat the barrel, or can you have a go with a hammer....? I have the .350" punch.
Any practical tips appreciated

email (option): viaconsu # planet dot nl

A very hot barrel and press them in, never hit them with a hammer..! As for the technical points of a BSA, I can't tell you.

If you're cutting the valve seats, don't get carried away with it, just gently with the cutter. It's too easy to cut it too deep.

email (option): horror@blueyonder.co.uk

Hans,

I have a press so let me know if you need my help.


Henrie

I installed NOS guides by oiling them and gently hit them in,
But with a soft metal between the two, and of course – the barrel should be clean where the guide goes.

However, one should be careful, a the guides metal is fragile
And easily crack and break if hit directly or pressed hard with pliers.

The length of the 2 guides is not the same, but I have seen many barrels with 2 inlet or 2 outlet guides installed,
Just like the tappets are not the same, yet usually people use it as the same.

Noam.

email (option): noam10@gmail.com

Noam is correct about the valve guide lengths...the easy way to tell them apart (if you have a matched pair) is that the exhaust guide is counter drilled to a larger diameter than the valve stem at one end. The counter drilled end should be fitted uppermost...Ian

email (option): ian@wright52.plus.com

Just check they are tapered correctly, yes, the whole length is tapered, I've had quite a few sets that were made parallel along their length so they just pushed all the way through.

email (option): davmax@ntlworld.com

email (option): viaconsu # planet dot nl