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Timing Question[ALL/82] posted by Craig on
Friday, 1 May 1998, at 12:28 a.m.
I installed a new crankshaft seal and timing belt tonight and was wondering: What is the best way to install the seal without the driver? I used a soft mallet and piece of wood to tap it in, and it seems to be in straight, but this technique makes me nervous and I hope it doesn't leak. Also, when installing the timing belt, the marks are all lined up to begin with, but after one rotation, they are off. I have two manuals- the Haynes says they should stay in alignment after each rotation but the Bentley says factory belts will not line up to marks on gears after one rotation. The belt is from IPD, so I assume this is factory? Thank's, Craig
82' 240 turbo
Re: Timing Question[S90/82] posted by Chuck Jaxel on
Friday, 1 May 1998, at 3:04 a.m.
When I replaced the timing belt on my 82 I bought the belt from a local
parts house. The belt had no marks on it,I aligned my 3 marks;cam,crank,
and 3rd sprocket,(forget what its called) and after rotation these marks
stay aligned and that should be what matters...//I take from your post
you are refering to the alignment marks on the belt..I've done 2 of these
and used only engine marks to align them.//////Chuck...
82 244 DL 190k miles
83 245 GLT 220k miles
Re: Timing Question[S90/82] posted by Bill on
Friday, 1 May 1998, at 6:47 a.m.
The camshaft and intermediate shaft turn at 1/2 the speed of the crankshaft. They should realign on every other rotation of the crank. This would be relative to each other and not to the belt. It will eventually realign; but many rotations later. Think of the belt as another,and much larger gear. It is rotating at a much slower rpm and so will take longer to get back to its starting point.
As to your oil seal, you are probably ok. As long as you don't cave in the face of the seal and it ends up straight in the hole, it will seal just fine. It is good practive to put some oil or light grease on the lip of the seal before installation.
Re: Timing Question[S90/82] posted by JohnB on
Friday, 1 May 1998, at 9:52 a.m.
It may take as many as 4 rotations of the crank for the original timing marks to come around on the belt and line up on the crank, the intermediate shaft, and the camshaft sprocket.
But it doesn't matter....as long as the crank and cam sprockets were initially in the correct position when you installed the cam belt, (third sprocket is intermediate) the crank/cam relationship will be correct.