944 timing cover problem

[roger s]

I am a newbie to Porsche's and I am changing the water pump, belts, ect on my sons 83 944, and have the updated water pump with the guide. What do I do for the back timing belt cover? Do I have to drill two holes for the guide mounts on the water pump to fit through, or do I need a different rear cover? Also I need a 46mm idler pulley thats larger than my original?

[Techno Duck]

The rear cover can be cut out with a dremel or buzz saw. It's very easy to do. There is a factory bulletin of the outline that needs to be cutout that I had but not sure if I can pull it up because i'm posting from my phone..

[roger s]

Thanks Techno, that's great news. Would anybody have that bulletin so I can see how much to cut out?

[Techno Duck]

took some time to figure out how to do it from my phone..

on second look this is actually the wrong one... Doh! But the last picture shows the center portion cut out for the updated pump. I have the actual bulletin somewhere on my
laptop, can post it Tomm. Morning.

[Slam]

While you have your cutter out, split the inner cover where it goes over the crank sprocket. You'll end up with a 2-piece inner cover that makes water-pump changes in the future much easier. You won't have to get the crank sprockets off to take the inner cover off to get to the water pump.

[HondaDustR]

Originally Posted by Slam

While you have your cutter out, split the inner cover where it goes over the crank sprocket. You'll end up with a 2-piece inner cover that makes water-pump changes in the future much easier. You won't have to get the crank sprockets off to take the inner cover off to get to the water pump.

Do you have a picture or diagram of where to cut it? This sounds really good if the cover will stay secure and not interfere with anything when cut. There's only 4 bolts holding it on and two are right near the crank.

[Slam]

Sorry, no pics. Maybe next time I've got my car apart I'll snap some. The outer and inner covers' edges are keyed (flanged and tongued, if that makes sense) and so it's actually the bolts that hold the outer cover to the inner that hold the piece of inner cover on. I seem to recall cutting so as to leave two bolts for that purpose. Or was it one? Sorry, it's been awhile since I've been in there. At any rate, I've been running this way for years and had no problems.

[VII]

This is a little off topic but does the rear cover bolt to the engine? I noticed that my rear cover jiggles around a lot and alows the front part of the cover and other places to touch the rollers. This hardly seems safe. I figure I will find out when I do the belts soon but it would be nice to get the bolts now so I can just put them in when doing the change. Anyone know?

[Techno Duck]

Back on land.. . Here is the tech bulletin.