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Grind it so the point touches first, then the outer flutes. It will center on the point, then the outer flutes will start cutting, make a round hole, and won't grab. Your insurance carrier will thank me. ;)
Actually, I have a close relationship with Sierra Nevada, and I'm sworn to secrecy, other than they give me empty pushrod boxes.. ;D
I love Sierra nevada pale ale, almost as much as any of chucks wonderful threads! :bow
Well, every skilled tradesman knows that “There’s never enough time to do it right, but always time to do it over". ;D I originally thought that I’d just do a quick check and see if the two cams were similar. No real need to do it right.. but I wasn’t getting repeatable results.So I decided to do it right this morning.Lario:Exhaust Opens 45 degrees BDDC Max lift .234”@73 degrees ABDC. Closes 10 degrees ATDC. Overlap .077 at TDCIntake Opens 8 degrees BTDC Max lift .234”@ 106 Degrees ATDC. Closes 45 degrees ABDC Overlap .073 at TDC.Aero engine:Exhaust opens 44 degrees BBDC Max lift .255” @ 72 degrees ABDC. Closes 8 degrees ATDC. Overlap .075 at TDC.Intake opens 9 degrees BTDC. Max lift .255 @ 106 degrees ATDC. Closes 44 degrees ABDC. Overlap .073 at TDC.
Well, I have some free time this morning, so time for some more small block porn. Pull the rockers..Torque her down, and have a look at TDC. .160” on the intake, .206 on the exhaust. I’m not sure what that tells us, but thought I oughta do it.. ;DYep. .065” :o Probably a good thing I just didn’t drop that cam with 2mm more lift in it. Looks like a V65 cam is in our future.
Something funny going on hereEither rocker ratio is way different inlet & exhaust or something has changed, you had .002" difference at TDC at pushrods and now .046" difference at valves.Methinks the wheel has moved (or the fairies moved it)But .065" is plenty of clearance (.040" is enought IMHO), extra 2mm on Ed's cam is not at TDC but at peak, get figures at TDC to compare with yours, may still go in without seating valves further.Check valve to piston tooMH
Yep. The spacer comes off. Here’s a picture of it. The machined piece looks like a pressure relief valve, which you would expect.
doesn't the aero valve fit in the other place(where the lario valve is). Might be other pressure it is set for.
Looks like there's a difference in the lower half (at least) of the crankcase. Compare the pan gaskets:Maybe you'll have to plug that hole the "big banjo bolt" came out of ?
It seems to be related to the oil cooler plumbing. Better work out the oil route exactly to make sure nothing dreadful occurs on start up!Pete
Might be a good idea to test the "blow-off" pressure of the two OPRVs in case the aero engine one is different.
"What's that sound??" ;D
I mean absolutely no disrespect, Charlie, far from it, but what would be the point? I *assume* the Lario one isn't adjustable?
Looks like it comes apart. Likely the same as a Big Block one, adjustment is done by adding and removing shims. Probably fits the same test rig I made for BB Tontis and Loops.
You mean I have to b bbb buy a M14 X 1.5 tap? ;D This project's getting expensive.. I have every 'Merican tap and die known to man. Well, almost.
Naw, just make a PVC test rig and melt the threads in. ;D (I too thought that was very ingenious).
best wishes to Dorcia