Re: 1983 - 928S running on 7 Cyl ????? -- 928S4VR Forum

[ Show ]

Support VoyForums

[ Shrink ]

VoyForums Announcement: Programming and providing support for this service has been a labor of love since 1997. We are one of the few services online who values our users' privacy, and have never sold your information. We have even fought hard to defend your privacy in legal cases; however, we've done it with almost no financial support -- paying out of pocket to continue providing the service. Due to the issues imposed on us by advertisers, we also stopped hosting most ads on the forums many years ago. We hope you appreciate our efforts.

Show your support by donating any amount. (Note: We are still technically a for-profit company, so your contribution is not tax-deductible.) PayPal Acct: Feedback:

Donate to VoyForums (PayPal):

[ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2, 3, 4, 5, 6 ]

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Date Posted: 10:05:43 01/25/02 Fri
Author: P
Author Host/IP: 66.89.75.42
Subject: Re: 1983 - 928S running on 7 Cyl ?????
In reply to: Johan 's message, "1983 - 928S running on 7 Cyl ?????" on 23:05:16 12/27/01 Thu

I think it's time to find out how to change those plugs (and do a compression test). I find it rather strange that the guy would take it upon himself to do a compression check of your engine......without your approval, and for no reason........kind of makes me wonder. Kind of makes me think he's looking at you for some extended work, eh???

I'm not sure if this is the plan with the aluminum Porsche V8, but with all other engines you do the compression test with a warm engine (preferred) and with the throttle wide open. With fuel injection the wide open throttle may be a mute point.

I'd run the motor and get it warm, pop the plugs, and screw in a compression tester that had a long lead tube with it....and have a friend crank the motor (will spin easy with no plugs). You'll have to remove the air tubes, but this is a very simple thing to do, have fun working on a warm momo!

good luck, P

If you find the guy was not telling you the truth, I would NEVER set foot in that shop again.

>In our city there are no Porsche dealers. There are a
>couple of guys claming that they can work on these
>cars.
>
>I had my petrol tank replaced and while there the
>technician said that there is a faint mis in the
>engine.
>
>I my absence he performed a compression test and
>advised me that there is no compression in the No. 8
>cyl.
>
>He did not provide any graphs or technical specs on
>the test.
>
>I am concerned and confused as she starts first time,
>runs up to 100 mph (and above) in no time, burns a
>nice color in both pipes, run a normal temp, idles
>steady at 750 rpm.
>
>Am I looking at the wrong signs ? Or is this possible
>while only running on 7 Cyl's ???
>
>Please give me some expert advise.

[ Next Thread | Previous Thread | Next Message | Previous Message ]