Engine timing question

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Dumindu
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My tercel:: 1987 Toyota tercle 4wd DX Wagon 1452CC
Location: Sri Lanka
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Engine timing question

Post by Dumindu » Wed Mar 06, 2019 12:32 pm

What is the correct of these two methods of engine timing?

No 1:


Align
1.Crankshaft pulley mark on 5-10 BTDC
2. Cam pulley hole on the middle arrow mark on the head.
3. Distributor rotor on the 1 st ignition pole.

then start the engine and advance the distributor for fine tuning.

No 2:

Align
1.Crankshaft pulley mark on 0 BTDC
2. Cam pulley hole on the middle arrow mark on the head.
3. Distributor rotor on the 1 st ignition pole.

then start the engine and advance the distributor with a light to get the ignition at 5-10 BTDC.

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Petros
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My tercel:: '84 Tercel4wd w/extensive mods
Location: Arlington WA USA

Re: Engine timing question

Post by Petros » Wed Mar 06, 2019 3:35 pm

I use number 2 method all the time. gets it close enough to start it easy.

if spark is too far advanced it may not be easy to start, so having the timing less advanced assures an easier start.

After having the engine apart for other sercive or even a rebuild, the fist start up is always risk for trouble, or unnoticed mistakes. by setting the timing at about zero, it is one less thing to worry about when getting it running.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)

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Dumindu
Top Notch Member
Posts: 205
Joined: Wed Aug 02, 2017 12:34 pm
My tercel:: 1987 Toyota tercle 4wd DX Wagon 1452CC
Location: Sri Lanka
Contact:

Re: Engine timing question

Post by Dumindu » Fri Mar 08, 2019 6:35 pm

I accept this. Thank you very much.

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