Me and a friend both have 70Series LCs ( 92 and a 95) but they are carbureted. His has the 3F engine and mine has the 1FZ-F. I’ll start with mine.
Following the Service Manual.....
1. Warmed up engine to operating temp.
2. idling at 650ish....no Tachometer available.
3. no EFI so I don’t have to jump the TE1-E1
3. AIM timing gun at marks
4. 7 Degrees BTDC is where I’m set.
Now my dizzy has a vacuum advance hooked to it.....line from dizzy to carb. No where in the manual does it say to disconnect it prior to getting timing. Correct? Also are all readings done from idle?
Now on to the 3F .....which was interesting!!!
Following the service manual
1. Warmed up engine to operating temp.
2. idling at 650ish......no tachometer available
3. no EFI so I don’t have to jump the TE1-E1
3. AIM timing gun at marks on fly wheel ( round circle and pointer)
4. His was set dead on the circle ( 7 BTDC) I advanced it so the circle was near the bottom of the window to advance it some. runs great with no detection of detonation.
His also has a vacum advance on his dizzy but again, no where does it say disconnect it while setting timing so it was left in place.
looking at the service manual it goes onto another step discussing setting it at 12 Degrees BTDC. The 3Fs marks sure make it hard to get an accurate timing. Now my gun has the advance adjusting so I could just set it to + 5 ( 7+5=12) and get there correctly.
any guidance or advice will be greatly appreciated.
thanks!!!
Following the Service Manual.....
1. Warmed up engine to operating temp.
2. idling at 650ish....no Tachometer available.
3. no EFI so I don’t have to jump the TE1-E1
3. AIM timing gun at marks
4. 7 Degrees BTDC is where I’m set.
Now my dizzy has a vacuum advance hooked to it.....line from dizzy to carb. No where in the manual does it say to disconnect it prior to getting timing. Correct? Also are all readings done from idle?
Now on to the 3F .....which was interesting!!!
Following the service manual
1. Warmed up engine to operating temp.
2. idling at 650ish......no tachometer available
3. no EFI so I don’t have to jump the TE1-E1
3. AIM timing gun at marks on fly wheel ( round circle and pointer)
4. His was set dead on the circle ( 7 BTDC) I advanced it so the circle was near the bottom of the window to advance it some. runs great with no detection of detonation.
His also has a vacum advance on his dizzy but again, no where does it say disconnect it while setting timing so it was left in place.
looking at the service manual it goes onto another step discussing setting it at 12 Degrees BTDC. The 3Fs marks sure make it hard to get an accurate timing. Now my gun has the advance adjusting so I could just set it to + 5 ( 7+5=12) and get there correctly.
any guidance or advice will be greatly appreciated.
thanks!!!