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750 Oil control jets.

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MarkCR750:
Bryan/Waggles, thank you for offering to underwrite any damage that occurs to my engine due to not checking my oil restrictors, very generous of you !  :), .....only kidding, if I do decide to take the risk (slight risk?) then it's my decision, to be honest I think I will just run it, if it goes bang it will force me to get on with the boring out and rebuild of the other engine, cheers Mark.

Bryanj:
Mate,  your bike, your pocket, your time. Things are a lot different when you are doing it as a job!! I always look at as if I was doing it for somebody else not for me

MarkCR750:
Agree Bryan, all the stress disappears when your doing something for yourself, if it goes wrong so what, just do it again, if it's for someone else then as you say it's a different matter, that said this build has gone well so far, no major probs (apart from when I reversed the battery terminals but we won't mention that), all I need now is a bit more rain to keep me off my road bike and I'll have time to get it finished!

royhall:
Got chance to get in the garage this afternoon and have a look at the oil flow situation.

I warmed the engine enough so it would tick over without the choke. I then removed the No.4 exhaust tappet cap (this was the side that had the previous damage), with a torch and a pile of rags on standby. Catching the heavy flow of oil with a rag I had a quick look in. I can see a lot of oil spraying onto the cam and followers from the carriers oiling jets and oil spraying out of one of the cam journals (cant see the other one). Repeated the same on No.1 with the exact same result, and the same quantity of oil. I am now happy that I have a very healthy oil flow to the cam carriers, so am going to leave the engine well alone and get on with running it in.

Just to recap. Although I didn't know there were removable oil jets at the time, I still had the sense to clean out what I thought was an oil drilling in the head, with carb cleaner and compressed air. So it appears to have done the trick. Also, only one journal of the cam carrier was damaged and I found that blockage actually in the carrier. So the control jet was probably clean or the other journal and the cam/followers would have suffered. The damaged carrier was replaced with a good used item when I rebuilt the engine.

I think I may have just dodged a bullet. Oil control jets will now not be neglected ever again. Hopefully this thread will prevent somebody else having the same problem, and may not get as lucky as I did.

Cheers all.

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