Home Job Timing Marks?

[horrace]

hey im half way through taking apart my car for the new timing belt and i see something that worries me, there are white painted on marks at 12 oclock on the cam gear and behind the cam cover, like instead of using the factory marks someone before made their own. If I rotate the motor the factory ones line up ok, but if i turn further the home job ones line up but its def not at TDC. What does this mean for me doing my new belt just use factory i guess, unless they had the cam gears off and rotated them or something, i dunno, what do yous think?

[kidafa]

Interesting....

Did you check your base timing with a light before you started? If so what was it at when warm with a/c off?

I personally would disregard these home jobbies and line up the factory indents on the gears with the marks on the engine cover.

Hows it all going anyway?

[TRB-001]

it means whoever did it wasnt to be safer then sorry.... there is nothing wrong with whats been done, infact when you change the timing belt it doesnt even have to be at TDC, its just easier becoz the cams wont jump side to side easily....

i make my own marks on all 3 gears simply becoz its easier to see my own white marks, on top it is alot easier to get dead straight aswell....

just forget u saw them and proceed.....

[horrace]

its going good, i have the balancer off and the cams timed up but the keyway on the crank isn't quite straight up and down shouldnt it be?

[horrace]

as you can see, cams timed up, and the balancer isn't straight up and down.

plus the timing mark on the crank appears to be out a small amount too, looks ok from the top but from under the car looks out

Edited April 29, 2010 by horrace

[kidafa]

Just line up all the marks and im sure you will be ok.

[horrace]

it just seems like the crank is out by 1 tooth, but i mean the car runs good so i dunno, i checked the timing before i did it and it was 20 deg, but that was using a cheap light and my limited knowledge.

come to think of it with the balancer on the mark lines up with the one on the timing case so it must be ok!

Edited April 29, 2010 by horrace

[kidafa]

I was going to say I dont think the keyway in the balancer is dead centre anyway mate.

20 deg hay, 5 deg advanced on stock that is i believe

[horrace]

i hope you right, im gonna chuck it back together the same way and it should be sweet, and when i set the ignition timing ill set it for 15 first and see what happens then try 20 maybe

[lachlanw]

the motor is on an angle . it has to point to a line perpendicular to the head gasket . NOT vertical

[horrace]

all hail lachlanw! im a f**king idiot

[lachlanw]

i spent weeks trying to do the cam timing on a single cam rb20e . eventually found out the mark on cam pulley is supposed to be at the top . tried that . triedup to a few teeth either way aswell . stil shit hack . it ran but obvoiusly not the best . looked at diagrams in the book then realised

[horrace]

well I finished yesterday as it was getting dark and the car is running sweet, I took if for a gentle spin last night then I warmed it up this morning and set the ignition timing back to 15 degrees and all seems well. Thanks to everyone who helped me with my noob questions and problems!

[kidafa]

Good to hear Rhet.

Dont worry about the noob questions, we all start some where. Anything else you think I may be of any help with pm me again.

Cheers

[horrace]

thanks mate!

[TRB-001]

plus the timing mark on the crank appears to be out a small amount too, looks ok from the top but from under the car looks out

this is the exact reason people make there own marks.....if the engine is running beautiful, its somes alot easier to make 3 of your own marks, transfer them onto the new belt and line them up again spot on, and u know your right the first time.....

sumtimes u second guess yourself on the crank one becoz of the stupid angle its on.