4A-GE MK1 Engine Best Distributer timing?

transamdrifter · 03-11-2008, 09:30 AM

What is the best timing to set the distributer? The first mark on the harmonic balencer is 0 the second mark is 12 and the third mark is 16. For what ever reason my car idles best at 20deg before top dead center.

te51levin · 03-24-2008, 07:56 PM

Set it to 10 BTDC with pins T1 and E1 (in the check connector) shorted to each other. It will idle faster with more advanced timing, but that does not mean that is the best place to set it.

MR2TRD1 · 03-24-2008, 08:15 PM

Make sure those terminals are jumped or you are wasting your time. Jumping them disables the ECU capabilities to advance the timing.

F0Bman · 04-04-2008, 07:08 PM

I have a smallport with Bluetop ECU and my mechanic always sets it at 15 BTDC

te51levin · 04-04-2008, 07:26 PM

Quote:

Originally Posted by F0Bman

I have a smallport with Bluetop ECU and my mechanic always sets it at 15 BTDC

Ehh...not a great idea. I'd recommend setting it to the factory specs, not more advanced, especially with more compression like a smallport has.

F0Bman · 04-07-2008, 01:07 PM

I'm sorry he retards the timing by 5 degress, I think I have my reference point messed up.

03-11-2008, 09:30 AM	#1 (permalink)
transamdrifter Some Skills Join Date: Dec 2007 Posts: 59 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Best Distributer timing? What is the best timing to set the distributer? The first mark on the harmonic balencer is 0 the second mark is 12 and the third mark is 16. For what ever reason my car idles best at 20deg before top dead center.

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03-24-2008, 07:56 PM	#2 (permalink)
te51levin LithiaToyotaParts.com Join Date: Oct 2005 Location: Copperhead Road Posts: 3,683 Thanks: 50 Thanked 323 Times in 267 Posts My Google Map iTrader Rating: (193/100% )	Set it to 10 BTDC with pins T1 and E1 (in the check connector) shorted to each other. It will idle faster with more advanced timing, but that does not mean that is the best place to set it.

03-24-2008, 08:15 PM	#3 (permalink)
MR2TRD1 pimpin' valet ;-) Join Date: Feb 2005 Location: Atlanta Posts: 2,180 Thanks: 1 Thanked 37 Times in 34 Posts iTrader Rating: (19/100% )	Make sure those terminals are jumped or you are wasting your time. Jumping them disables the ECU capabilities to advance the timing.

04-04-2008, 07:08 PM	#4 (permalink)
F0Bman Cage Fighter Join Date: Mar 2008 Posts: 252 Thanks: 0 Thanked 3 Times in 3 Posts iTrader Rating: (0/0% )	I have a smallport with Bluetop ECU and my mechanic always sets it at 15 BTDC

04-07-2008, 01:07 PM	#6 (permalink)
F0Bman Cage Fighter Join Date: Mar 2008 Posts: 252 Thanks: 0 Thanked 3 Times in 3 Posts iTrader Rating: (0/0% )	I'm sorry he retards the timing by 5 degress, I think I have my reference point messed up.