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Porsche 944 advice Cylinder Head Removal

hi,

I found a 944 a few day ago and decided to buy it. I have mechanical background on cars and industrial engines but dealt with a Porsche before. The car has been sitting for a few months since the timing belt broke, but the car seems to have a lot of potential. I am planning to use for fun and race during the weekends if possible.
I would like to get some advice on the following:

- Since the timing belt broke I will have to replace bent valves, are there any tricks or details that I should keep in mind before removing the camshaft and cylinder head?

I also got the car with some spare parts like an auto-trans axle with torque tube, rear hatch, side windows.

- what should i need to check on the transaxle to make sure everything is ok before running?

thanks
Old 05-13-2011, 08:28 PM
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Welcome to the world of 944 ownership, and to the board!

Clark's Garage has a great Garage Shop Manual that you'll find very helpful: Clark's Garage Home Page It's a really great resource. It has a procedure for removing the head you may find useful: Cylinder Head and Head Gasket Removal (8V Cars) Cylinder Head and Head Gasket Installation

Clark's also has sections on tensioning the cam and balance shaft belts. Timing Belt and Balance Shaft Belt Tensioning

What to keep in mind when removing the cam tower and head? One good thing is that you got a lot of steel bolts fitted into aluminum and when they've sat long enough (15-20 years), the steel bonds to the aluminum, so it's real easy to strip the bolts heads - unless you "wake them up" first.

To wake up the bolts, you rap sharply on the head a few times. I usually insert the allen key tool into the head then rap on it with a hammer. This also insures the tool is properly seated.

I also make sure the tools are in good shape and any one that isn't sharp and fresh, I toss. That's a lot easier than having to screw with removing a bolt with a rounded head.

Another: If you're careful, you can remove the cam tower together with the lifters (kinda tip and turn) which is less hassle.

As far as the transaxle is concerned, there's nothing special to do to it before using the car. You might consider changing the transaxle oil at some point.

Got some pictures?
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Old 05-13-2011, 09:11 PM
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Quote:
Originally Posted by nola944 View Post
hi,

I found a 944 a few day ago and decided to buy it.

I also got the car with some spare parts like an auto-trans axle with torque tube, rear hatch, side windows.

thanks
Welcome,

Could you tell us what year?

Is the car an automatic or standard? Since you got an "auto-trans axle" with the deal, was it a converted auto to standard and these are the left over parts?

The spare rear hatch may have metal frame to glass separation. If you put new rear hatch shocks on your car, you will probably cause the same separation.

Machine work on a head will cost about $200 plus the bent valves. You might check ebay or post a WTB (want to buy) on the Pelican Parts wanted/for sale forum for a good used. Many members keep a spare.

GL
John
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Old 05-14-2011, 05:11 AM
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Its a 1984, the car seems to be in really good shape. the odometer says 88,000 miles which might not be true, but besides the engine problem the car only has cosmetic issues and an automatic transmission.
Along with the first car the deal included another 944 without engine, but with a complete manual transmission.
I have tons of spares and that's why i decided to convert the firs car.
thanks for the advice Mike and John, I will visit the site and look around for the parts. Thanks!!
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So to make sure I understand. You plan to take the manual transmission out of the engineless car and put it in the car with the automatic transmission that needs a head?

Mike surely has more answers than I could provide .

When you pull the head, check the piston cylinders for damage. Check to see if there has been a "coolant pond" that scored the cylinder.

One scratch that is not deep can be ignored in a cylinder. A deep scratch is one that will catch you fingernail. I had one minor scratch in my '87.

Good luck, welcome and post often.
John
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Old 05-14-2011, 04:12 PM
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Quote:
Originally Posted by John_AZ View Post
Mike surely has more answers than I could provide .

John
Naw. I don't know diddley about automatics.

I will say there have been a couple threads on that recently though. Isocyan8 had one. The last post of his I saw, he was just in the process of adding a clutch pedal.

The best of my recollection, it was very complicated changing an auto car into a manual car.

Lots of luck!
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83 944 NA - Black on black
86 951 - Red
97 Ford Expedition

He who hesitates is lost.
Old 05-14-2011, 05:10 PM
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