|
Bruce..... ....typically, dwell is about 2/3 the degrees of dizzy rotation between points opening. 100% dwell onnna 4 cylinder is 90 degrees. So typically, dwell should be about 60 degrees for 4 cylinder engine. Same rule for 6 cylinders, 60* rotation, dwell = 45*; 8 cyls 45* rott, dwell = 30*. I always adjust for min dwell spec (max points opening) because as points rubbing block wears, points close and increases dwell; it makes the tune-up last longer. I like dwell because it doesn't get the gap measurement incorrect if'n yer points have "deposits" on them as a feeler gauge will. As to why you have dwell measurements of 26* & 28* instead of the expected "60's", I would suspect might have sumptin to do with positive ground and dwell meter transistorized gutts. I'm hoping that yer reported points gap of .26 is a typo 'cuz the sidemount points gap is really suppost to be 0.025. (but as I noted, wide gap, less dwell) As for dwell on frontmount, take yer 4-nipple crabcap off and connect to the points inside the distributor body. You don't haffta have the cap on to check dwell, just rotor outta the way. Howsomevers, Yer gonna have a difficult time adjusting your frontmount points to correct dwell with the distributor mounted to front of block. But you know that ennyways, don't you?..... ..respectfully, Dell
|
