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Timing marks for 1979

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Old Jan 17, 2011 | 01:04 AM
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Default Timing marks for 1979

I just recently finished up replacing the water pump in my 79 euro and was trying to find the cam timing marks to check and make sure they were in line, with engine at TDC and so forth. I can't seem to find them on the cam pulleys though, there is literally no noticeable markings whatsoever. I was able to put the belt on since I marked it with some paint before I took the belt off but just wanted to check and see if it was in line before I went through the process. There is an emblem with the manufacturers marking I'm assuming, with a sort of triangle that could serve as some sort of guide, but its seems pretty far off to be it-about 90 degrees from where it should be if thats it. I've tried turning the crank over a couple of times to make sure it wasn't off 180 degrees but that doesn't seem to help. Any pictures maybe of what it looks like? I could't find any engraved lines or anything. The engine does start though, but I want to make sure it is running optimally.
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Old Jan 17, 2011 | 01:23 AM
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Try this thread:

https://rennlist.com/forums/928-foru...-location.html
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Old Jan 17, 2011 | 01:40 AM
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OK thanks a lot I will check first thing in the morning it looks to me like a faint notch on the rear of the gears is what I'm looking for
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Old Jan 17, 2011 | 09:47 AM
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It is a very small notch and easy to miss. Go about half way through this write up by Sharskin and he has great poictures of the notches on both sides.

http://members.rennlist.com/sharkski..._R27-TB-WP.htm
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Old Jan 17, 2011 | 10:35 AM
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OK thanks for the help I found them and each was 2-3 notches off so I'm just going to set it to stock. Is there any rough estimate to get the belt tension right? Like "should move 5mm when pushing here" or such. I don't have a tension tool, but can probably drive the car about 30 min to a guy who works on these and might help me set the tension correctly. I was thinking about just driving it there with the timing covers off and then dialing it in, unless there is a fairly accurate way without using a gauge.
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Old Jan 17, 2011 | 03:33 PM
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Kyle,

On short timing belts the 90 degree twist method is OK but that method would cause the belt to be too loose on the 928. Do you know anyone in the area that has the Kempf tension tool?

Dennis
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Old Jan 17, 2011 | 04:55 PM
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the belt tension is checked cold ,

so you should go borrow the belt tool .


the belt should be tensioned to the low side of the tool if your using the kempf tool. This will give approx a 4.0 on the Porsche belt tool

NOTE the crank damper can be put on backwards,
with you facing the engine the tops of the numbers should be facing the engine, and you should be able to read numbers.

Make sure to fill the tensioner before you put it onto the engine,
I suggest to use STP oil treatment
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