SOHC.co.uk Forums > CB750
Oil pressure issue / motor rebuild
MrDavo:
Ian got it out by jamming a twist drill in it, I'd tried heat but only suceeded in burning myself. The pump is rebuilt, primed and back in place with all the new seals and springs which you sent me.
The barrels are back on (I couldn't resist fitting the new damper rubbers I bought from RGP750 too), and the clutch cover, I was going to put the mousetrap that changes the gears back together last night, but the stop plate that goes on first is missing the tag that goes into the selector rod to stop it turning. I ordered one from DS today, he gets them to order.
Next I'll have a look at the head, more gasket scraping off to do, also I want to whip all the valves out for a check, number 3 exhaust has been running hot, I want to see if the seat is OK, though I suspect the old rock hard carb rubbers as the cause (I've got new ones). I'd like to measure all the springs for length too, although they might all have been new when the motor was originally rebuilt, I wonder what 10 or 20 years standing might have done to the ones that were compressed.
I'm posting to make a quick query, I know that NOS Honda head gaskets are preferable to pattern ( which explains all the single Athena head gaskets on eBay), but where the *&^% do I get one? If you don't want to reveal your source publicly, you can always pm me ;)
JamesH:
Should be able to get genuine Honda head gaskets from CMSNL. But be warned, they're almost £80 a pop...!
MrDavo:
Ye Gods, one hundred and two of our earth pounds with VAT and carriage. :o
Suddenly the US ones with horrendous postage seem worth checking out. Are the Athena ones that bad?
JamesH:
Graham's the man to ask....
MrDavo:
I did that, and rather than skimp on a job I only want to do once, I have bitten the bullet and ordered the real thing from CMSNL.
Ouch!
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