01-08-2020, 01:09 PM
My 1927 AD has a head marked XL 1253 ED. It has brass hex plus in it (what for? ...priming?) ...I am not sure how sound this one is. It has a suspicious lump near where the horn bracket is bolted on and I think it may have an old problem.that has been repaired/bodged...
There is some witness of water appearing near the lump, and indeed possibly from up a couple of studs... No serious water leak though, nor overheating, just a bit of gurgling when stopped after a brisk run.
Compression is healthy cold (75-80) I will check it it hot. Yesterday, out in the heat I had a bit of missing at "high" revs for the first time
Which head could I replace it with if it turns out to have a problem?
David
There is some witness of water appearing near the lump, and indeed possibly from up a couple of studs... No serious water leak though, nor overheating, just a bit of gurgling when stopped after a brisk run.
Compression is healthy cold (75-80) I will check it it hot. Yesterday, out in the heat I had a bit of missing at "high" revs for the first time
Which head could I replace it with if it turns out to have a problem?
David