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tdc marks on flyweel
by
carrizog60
on 23 Mar, 2008 04:03
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was seeing the french forum and see that the timing marks on the flyweel that they take for reference is this:
am i doing wrong?
i never timed my pump by this but by other mark that it has... :shock:
see on bentley:
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#1
by
Baselyne
on 23 Mar, 2008 04:23
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I dont think that's the right mark but i could be wrong!
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#2
by
carrizog60
on 23 Mar, 2008 04:25
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because if its the wrong mark should be chaged the post as beeing a sticky...
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#3
by
Vincent Waldon
on 23 Mar, 2008 10:27
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Unfortunately there are several different marks, and then people scribe their own / use gasser flywheels etc etc.
Your first picture looks a bit wonky to me in that I've never ever seen a factory timing mark right next to a flywheel bolt.
The second picture is definitely the factory mark, properly aligned. Both my current diesel flywheels have the diamond shape *and* a line, but the same diamond shape for sure.
My opinion would be: if you can find a mark like the second picture then go for it..... the first one looks aftermarket-ish to me.
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#4
by
carrizog60
on 23 Mar, 2008 11:08
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well,the first pic is what is in the french area in a diy for timing the pump...
maybe i will alert them :arrow:
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#5
by
burnt_servo
on 23 Mar, 2008 11:19
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if a person un bolted the fly wheel from the flex plate , and moved it one bolt over , would that not change the timing marks?
i can't remeber if the fly wheel and flex plate are indexed to each other .
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#6
by
rallydiesel
on 23 Mar, 2008 15:34
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They are indexed to each other. There are pins that only allow the flywheel to bolt to the pressure plate one way. With that being said, using a different pressure plate could allow the flywheel to bolt on differently. I installed a new p-plate and the I had to scribe a new timing mark.
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#7
by
myke_w
on 24 Mar, 2008 05:31
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That first picture is (i'm pretty sure) the dynamic timing mark for a gasser motor. It appears that someone has used a gasser flywheel on a diesel
To the right of that mark (about 1/2 inch) I believe you will find a little round peen mark, that's the static timing mark..
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#8
by
subsonic
on 24 Mar, 2008 09:39
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So is there a way to mark the flywheel for TDC before it is mounted to the engine?
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#9
by
rallydiesel
on 24 Mar, 2008 10:02
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The best way would be to have the cylinder head off and the transmission on. Use a dial gauge and find TDC and then punch TDC on the flywheel.
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#10
by
myke_w
on 24 Mar, 2008 10:40
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#11
by
Tintin
on 24 Mar, 2008 21:46
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The first pic is from AAZ, at each time that I have make a timing on this engine, I white painted the mark.
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#12
by
slorimer
on 26 Mar, 2008 11:18
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so in picture Photo0021
is the TDC mark the punch mark to the right of the white dot?
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#13
by
Baselyne
on 26 Mar, 2008 12:25
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so when putting the gasser flywheel onto a diesel how do I know where to mark the tdc mark?
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#14
by
burn_your_money
on 26 Mar, 2008 14:40
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I'm pretty sure that I used this mark to time my last engine.... It runs fine.
I'll have to take the head off my spare engine and verify the marks. Come to think of it I don't think I've ever seen that diamond looking thing