R.Smith wrote:OK. I'm an idiot.
I was reading the tach on the Heath meter. The actual dwell is reading 23-24...still off but much more gooder.
However, when I reattach the vac advance line, dwell drops to 15. is this normal? Plus the timing drops back to about 25 BTDC.
two-bit wrote: I have used this method for years on everything from air cooled 4-V engines to 3.0L Mitsu's to Detriot diesels.
R.Smith wrote:Update. I bought and installed a new distributor, points, condenser, rotor, cap and vac advance.
Now the dwell is hovering even lower, around 21 as opposed to the 23 I was getting before.
The manual I'm using says to set the timing with the vac advance hose off and plugged. I did this and when I reattached the vac to hose to the vac advance it again advanced the timing beyond the scale. It's hovering about a half inch past the BTDC mark which is past 30 degrees.
If I adjust the timing with the vac hose on, then pull it off and plug it, the engine dies.
I'm driving the truck now and it runs ok but seems sluggish on hills and when accelerating. I'm out of ideas. Any suggestions?
two-bit wrote:I should have said i saw it done on a Detroit Diesel, that one i did not do, but watched it done. It was a 4-53 Detroit in a Cruz-air claw machine. He kept playing with the injector pump until he got the rings in the center. But you are right, it does not work the same way with a diesel that it does with gas motor.
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