[Vwdiesel] New timing belt though trans is removed.

[Erik Lane]

Well, if it was running well, then it should be close to correct with TDC.

But it sounds like your understanding of the ratios of crank to cam is a
little backwards. You can't have the crank 180 off of TDC with the cam in
the correct position if it's close to the correct timing. The crank turns
twice for every one turn of the camshaft. Therefore you can have the *cam*
180 off, but not the crank. Every time the cam is in the correct position
the crank will be too.

All that is assuming it was timed right to begin with, or at least close to
right, which it sounds like it was if it was running.

On Sun, May 3, 2009 at 1:25 PM, raymond greeley <rgreeley2 at hotmail.com>wrote:

>
> So the engine is out and i removed the trans to inspect the clutch and am
> not seeing a TDC mark.
>
> I can see, with the valve cover off, when number 1 valves are closed though
> could this be 180* off
>
> TDC. Even if this is TDC it's a close guess as to exactly TDC based on
> valve position and of course this assumes it was correct to begin with.
>
>
>
> I have, in the past, marked the positions of crank, cam and locked down the
> pump and then changed the t-belt and it did perform well afterwards, though
> I am thinking a finer procedure is required.
>
>
>
> I will buy a timing gauge to fine tune the engine when it is in and hooked
> up to a radiator
>
>
>
> I have a bentley and have checked the 4crawler site and was just looking
> for a little more
>
> guidance then either source is offering on this one.
>
>
>
> It is a 1.6 NA motor of indeterminate age and miles  that i got out of a
> caddy that had
>
> a rusted frame. I did a bench test on the engine, it did start easy and run
> smooth
>
> without smoke so  i think it is worth changing the t-belt and installing it
> in my needy
>
> rabbit.
>
>
>
> I know we have discussed this often and so maybe an archive is in order
> here.
>
>
>
> thanks,
>
>
>
> ray
>
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