In reply to Trappdinzen :
None. Boring is a repair procedure, not a performance modification.
In reply to Trappdinzen :
None. Boring is a repair procedure, not a performance modification.
Welp. Back to this thread.
Got the engine in. Got it all buttoned up. Pepper was a big help.
Unfortunately, no happy engine noises.
Verified cam timing via photos in this thread. Verified ignition timing (pictures elsewhere showing piston @ TDC and mark on crankshaft damper, piston visible at TDC, checked rotor position in distributor, timing light hooked up to #1 shows damper mark at TDC.) Verified we have spark (inline spark plug tester, and timing light both light up.) Verified that we have fuel (plugs are wet when pulled after cranking, distressing fuel smell standing behind the truck after cranking for a bit.)
All fuses look good, dash indicates stuff is happening so at a minimum the computer is talking to the dash (and hopefully to everything else?)
No clue why it isn't chooching.
So we have spark, we have fuel, do we not have compression somehow? We didn't do a compression test as John needed to do stuff this evening, I'll go back at some point and poke at it with a compression tester. Anyone have any thoughts on anything to check?
You still goofing with running those other rocker arms on it ? Seems a likely possibility if you're lacking compression.
Also, just because #1 is at TDC and you dropped the distributor in that's no assurance that you're at the "right" TDC.
Distributor 180 off?
Cousin_Eddie (Forum Supporter) said:You still goofing with running those other rocker arms on it ? Seems a likely possibility if you're lacking compression.
Old engine ran with them, problems with that block were in the rings. I was wondering if they needed to be adjusted again which is why we were going to check compression.
Pete. (l33t FS) said:Distributor 180 off?
Potentially, but doubtful? We thought of it, swapped plug wires 180. Tried some starting fluid and got a nice backfire through the intake that engulfed a decent amount of John's upper body, generally a signal that you are 180 out, so we swapped them back. Once we did that we rotated the engine over by hand to the TDC mark and the rotor was pointed at the #1 position.
You've got to confirm that you have the rotor at #1 when it's the proper TDC. Guessing won't cut it. Pull the plug and stick your finger in the hole. Confirm...
New balancer, or old? Sometimes the outer ring slips on the rubber so TDC isn't TDC. That could also explain why you had to re-do the lash.
New balancer
Did you triple check that all the ground wires are back and happy? Clean shiny metal, no paint.
I know you mentioned the starter was turning the motor, but i was thinking of power/ground for other systems that might not be happy with their power or ground.
Is the exhaust open? No dirt dauber nests? Does the oil smell gassy? Grasping at simple things here
I'm guilty of, when rebuilding our 460, slapping in the rings and sending it. Have had Zero problems with it now, on it's 3rd 24 hours of LeMons race.
On the no start, I've found I need to play around with the timing quite a bit to find a happy place where it will sputter sputter. Remember you need to be BTDC for the spark. Low compression tugboat engines like even more advance.
In reply to volvoclearinghouse :
Agreed. Idle timing is so insignificant. The factory spec says something like 10*BDC because the dizzy is curved for a total of 36, but getting it running at idle, you don't need to worry a split second about it being "right." At zero BDC you might get a chug. I broke in my last 454 by getting it running smoothly with more advance. After cam break in, I discovered my ear had set the timing at 30* BTDC. Didn't hurt a thing.
What are teh EEC-IV specs? How does it tell you to set timing?
In reply to Curtis73 (Forum Supporter) :
We used to crank the distributor around way more than that for cam breakin, because it kept temperatures down. Still would need to occasionally hose the radiator, but no bright red headers 
Nothin' says fun like destroying the coating on a new set of $700 headers.
Also no toddlers allowed in hobiercr's shop.
What was the secret handshake to get it to fire?
In reply to wae :
Getting threatened by Stampie, apparently
In reply to Pete. (l33t FS) :
If that works, then he could make a mint just flying around the country. I could keep him busy for at least a week casting angry glances at stuff in the shop and around the house.
Valves were set a little too tight. By eye they looked like they were fully actuating but they had about 1 turn too much on them. A quick adjustment on all of them with a compression check and it fired right up when it was back together.
Initial run-in done. Evan is grabbing some transmission fluid and then will do the load run-in. No leaks so far so we may be close to done. It's got an hour drive home so we want it to be good before that.
In reply to hobiercr :
That's awesome man, good to hear. Yeah, suck-squeeze-bang-blow, sounds like you were missing the first 2!
Sweet!!!!
Nice job!
WooooHooooo!
Great job, man.
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