928 Updates For You

"CaptDale - is secretly British" (captdale) 07/13/2016 at 20:22 • Filed to: 928, porsche, alive

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So really it is just one update on my 928. Today after taking almost a year to change the intake gaskets and get her fixed, the 928 is running. Two days I tried to get her going, but there wasn’t enough fuel. Then yesterday the battery was dead and the jump box didn’t have enough juice and I ran out of time to fix those issues during my lunch break after getting food. So today I postponed food so I could have enough time to get the 928 started. I pulled the battery out of my Goat and placed it in the Porsche. After a while of priming the system and hearing a considerable difference in starting power, VROOM! Alive she is. I was so excited. But I was having trouble getting her to stay running. After finding a large vacuum leak (that I plugged with the threaded end of a spark plug) she ran fine.

*note there is some profanity in the videos

Here is her first start up

She moves, but may be leaking

Running rough and stalling. I think due to the idle.

I really hope this is just valvetrain noise.

I have consulted with my local Porsche specialist !!!error: Indecipherable SUB-paragraph formatting!!! but I think he has been sick, so I am awaiting a prognosis.

RallyWrench > CaptDale - is secretly British 07/13/2016 at 20:43

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Hey, just got done with work and going to watch the other vids you sent.

Rusty Vandura - www.tinyurl.com/keepoppo > CaptDale - is secretly British 07/14/2016 at 13:11

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What year of manufacture?

RallyWrench > CaptDale - is secretly British 07/14/2016 at 13:39

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Glad you got the vacuum leak sorted, and that knock sounded horrible at first so glad that’s gone. Really hard to tell the noise on the last video, but it does sound more like valvetrain than bottom end. I wouldn’t be at all surprised if it has stuck lifters after having sat so long. I don’t usually recommend additives, but an oil detergent like Swepco 502 or even straight ATF could help free them. So could just running it and holding the revs up a bit. Is the leak in the rear ATF?

CaptDale - is secretly British > Rusty Vandura - www.tinyurl.com/keepoppo 07/14/2016 at 13:46

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1979

Rusty Vandura - www.tinyurl.com/keepoppo > CaptDale - is secretly British 07/14/2016 at 13:51

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Wikipedia shows that car having 219 horsepower. Does yours have a manual gearbox? I’d expect the same car today to have at least 300 hp.

CaptDale - is secretly British > Rusty Vandura - www.tinyurl.com/keepoppo 07/14/2016 at 14:32

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Auto unfortunately.

CaptDale - is secretly British > RallyWrench 07/14/2016 at 14:41

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I think it is ATF... Wasn’t fuel. I don’t know what else would be leaking back there. It didn’t seem like gear lube (wasn’t think, but was not red like most ATF....

Rusty Vandura - www.tinyurl.com/keepoppo > CaptDale - is secretly British 07/14/2016 at 14:43

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Bummer, Dude. I was born in 1964, so I was the right age in 1979 for a Porsche 928 to be the coolest.

CaptDale - is secretly British > Rusty Vandura - www.tinyurl.com/keepoppo 07/14/2016 at 14:49

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Oh way cool. Yeah its sucks, but it isn’t too bad. Either going to do a swap or there is a manual one for super cheap I might pick up if I sell this one.

RallyWrench > CaptDale - is secretly British 07/14/2016 at 15:25

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If it’s from the diff it’ll be GL5 and will reek, ATF doesn’t smell bad.

CaptDale - is secretly British > RallyWrench 07/14/2016 at 16:37

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Ok yeah then it is ATF, all I could smell was my rubber gloves. The GM diff lube is the worst, not only does it smell like gear lube, they also added a “grape” sent to make it smell better, but trust me, it does not.