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i checked my timing advance today... thought i had done it before but guess not....
anyway first i checked the vaccum at idle from the tube and got just over 6 inches of vac at idle. first question, does that sound about right? don't think i have any leaks. it is a brand new line so i assume it is correct and does not seemed plugged.
second thing i checked the vacuum advance. put a vac pump on it and gave it a few pumps. it moved the plate ok but the plate would slide right back. So it would not hold the vacuum.
then i did a check for total vac with the vac advance connected and got the following readings.
RPM advance
1000 15*
1500 30*
2000 34*
2500 41*
3000 44*
i should have done it again with the vac advance plugged but my partner was getting antsy to go someplace else. hard to get good help...haha.
what do you all see from the numbers?
get a new vac advance?
get stiffer springs for the mechanical advance?
have the diz completely rebuilt?
i started this wondering if the timing, even though it was set at idle to 15* with vac plugged, could be causing my engine to run warmer than it should? trying to control my engine temps as best possible. want to make sure i have everything working as it should before i spring for a new radiator. you know the routine... checked gauge, tried extra ducting, tried electric fan, etc. Nothing has seemed to make a difference. my engine runs really well, very smooth. but thinking if my engine is building extra heat at speed from poor timing, well idling is certainly not going to help it recover.
anyway first i checked the vaccum at idle from the tube and got just over 6 inches of vac at idle. first question, does that sound about right? don't think i have any leaks. it is a brand new line so i assume it is correct and does not seemed plugged.
second thing i checked the vacuum advance. put a vac pump on it and gave it a few pumps. it moved the plate ok but the plate would slide right back. So it would not hold the vacuum.
then i did a check for total vac with the vac advance connected and got the following readings.
RPM advance
1000 15*
1500 30*
2000 34*
2500 41*
3000 44*
i should have done it again with the vac advance plugged but my partner was getting antsy to go someplace else. hard to get good help...haha.
what do you all see from the numbers?
get a new vac advance?
get stiffer springs for the mechanical advance?
have the diz completely rebuilt?
i started this wondering if the timing, even though it was set at idle to 15* with vac plugged, could be causing my engine to run warmer than it should? trying to control my engine temps as best possible. want to make sure i have everything working as it should before i spring for a new radiator. you know the routine... checked gauge, tried extra ducting, tried electric fan, etc. Nothing has seemed to make a difference. my engine runs really well, very smooth. but thinking if my engine is building extra heat at speed from poor timing, well idling is certainly not going to help it recover.
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