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Home Job Timing Marks?

horrace

By horrace,
in Four Door Family & Wagoneers

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horrace Rising Star

horrace

Posted
Posted

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?

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kidafa Veteran

kidafa

Posted
Posted

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 Rising Star

TRB-001

Posted
Posted

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 Rising Star

horrace

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  • Author
Posted (edited)

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

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Edited by horrace
horrace Rising Star

horrace

Posted
  • Author
Posted (edited)

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 by horrace
lachlanw Veteran

lachlanw

Posted
Posted

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 Rising Star

horrace

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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!

TRB-001 Rising Star

TRB-001

Posted
Posted
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.

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