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POOCH
Joined: 20 Apr 2010 Posts: 8 Location: S.E. Wisconsin
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Posted: Thu Apr 29, 2010 3:49 pm Post subject: Who's gonna be a hero |
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1980 931 where do I start? When in school my book reports actually read longer than the book itself. I'll do my best to be concise. 10 years ago after owning this car for a few years my first child was born and the car got parked. There is sat until last month. Now you all should know I spent my four years of High School shop classes in the wood working dept. Armed with a Haynes Repair Manual a set of Craftsman tools and this web page I got started.
Drained the tank and flushed it out, blew out the fuel lines and replaced fuel filter. Put in new spark plugs read about gaping here and replaced the oil and air filter. And with a new battery I'll be dammed it started right up. Went to try the clutch it went straight to the floor with fluid on my shoe. Read some more from you guys and ordered a master and slave and supply line. Getting the master out and back in again was no easy task. Trying to remove the starter to get to the slave and the 19mm bolt mounted so close the the housing couldn't get a wrench in there. Pretty much gave up on it and thought maybe the slave is still good leave it in there. Then when trying to bleed the system the bleeder valve gets stripd. Have no choice now took a perfectly good open end and ground it down to a real narrow wall allowing the wrench over the 0 clearance 19mm bolt. A couple taps from the rubber mallet and out she comes. The slave is now next and if you can believe it the ridgid supply line strips the last nut before dropping the slave with a brand new one sitting right here I can't get the nut to give. Now if armed with a replacment line I'd just cut through the old one and get busy installing. I don't have one so to my disgust the old slave stayed on after all. Fabricated a 1" cutoff of a 17 mm allen wrench to reach the fill hole in the snail shell tranny and replaced with sae 90 almost three quarts. Put a 3/8 in. clear rubber hose to the quart bottle tip the other end in the fill hole. Took a metal awe and punched a hole in the bottom flipped it up and with a compressor air nozzel pumped up the plastic bottle. 40 seconds per quart, done. Bled the brakes and sprayed the calipers with brake cleaner Now two questions ..Did I over look anything pressing to be done to a car sitting for 10 years?
And the reason I'm writing this is while taking the car out for the first time in 10 years not really pleased that the clutch it doesn't engage until nearly to the floor board. The car seeming to perform fine suddenly while cruising, in I believe 4th gear this god awful grinding sound starts the car loses power and engaging the clutch does nothing. I coast to a slower speed the whole time the cars grinding I shift to second the grinding stops and the car powers up then to third and fourth with no sign of anything having just happened. I'm getting a rattle in the shift linkage while applying pressure by hand to the shifter the noise stops. I imagine its the bushings in the linkage and I'm about to order I think it's four of those and that should be pretty straight forward after I find a post on how that's done but what of this grinding noise right out of the blue. The car seems to be performing fine and then almost as if something slips out of place and this grinding noise. I went straight back home with it and there it sits until I know what you guys think. Thanks |
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Tas931
Joined: 08 Apr 2010 Posts: 142 Location: Tasmania, Australia
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Posted: Thu Apr 29, 2010 4:13 pm Post subject: |
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not trying to be rude but you should probably brake that up a bit so that it is easier for people to read.
people are more likely to read it that way.
Cheers,
Tas |
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Mike924

Joined: 12 Aug 2004 Posts: 2601 Location: IoW UK
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Posted: Thu Apr 29, 2010 4:44 pm Post subject: |
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Can you tell roughly where the grinding sound is coming from? Front, rear? Left, right? _________________ 1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd
'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org |
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924guy

Joined: 29 Dec 2003 Posts: 2088 Location: Port St. Lucie, FL
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Posted: Thu Apr 29, 2010 10:01 pm Post subject: |
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my eyes hurt , somebody post the cliff notes so I can try and help...
I did get "grinding sound" and am going to take a leap and say check rear wheel bearings. they can do some strange things and sometime make noise only when moving under load, making you think its coming from the torque tube or transaxle. _________________ Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
http://www.cardomain.com/id/924Guy
Performance by Pasha |
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D Hook

Joined: 02 Nov 2002 Posts: 3158 Location: Omaha, NE
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Posted: Thu Apr 29, 2010 10:52 pm Post subject: |
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Missed the part where you changed the timing belt. Living dangerously?
I don't think I'd start it again until the belt is replaced. _________________ '80 924 n/a SOLD |
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Rich H
Joined: 10 Jun 2007 Posts: 2665 Location: Preston, Lancs, UK
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Posted: Thu Apr 29, 2010 11:22 pm Post subject: |
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What he said replace the timing belt adn tensionner ASAP.
As for grinding noises in the gearbox it might be anything. Change the belt and drie again see if it reoccurs? _________________ 1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec |
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924RACR

Joined: 29 Jul 2001 Posts: 9128 Location: Royal Oak, MI, USA
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Posted: Thu Apr 29, 2010 11:26 pm Post subject: Re: Who's gonna be a hero |
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Here, I'm gonna do this as a public service...
| POOCH wrote: | 1980 931 where do I start? When in school my book reports actually read longer than the book itself. I'll do my best to be concise.
10 years ago after owning this car for a few years my first child was born and the car got parked. There is sat until last month. Now you all should know I spent my four years of High School shop classes in the wood working dept. Armed with a Haynes Repair Manual a set of Craftsman tools and this web page I got started.
Drained the tank and flushed it out, blew out the fuel lines and replaced fuel filter. Put in new spark plugs read about gaping here and replaced the oil and air filter. And with a new battery I'll be dammed it started right up.
Went to try the clutch it went straight to the floor with fluid on my shoe. Read some more from you guys and ordered a master and slave and supply line. Getting the master out and back in again was no easy task. Trying to remove the starter to get to the slave and the 19mm bolt mounted so close the the housing couldn't get a wrench in there.
Pretty much gave up on it and thought maybe the slave is still good leave it in there. Then when trying to bleed the system the bleeder valve gets stripd. Have no choice now took a perfectly good open end and ground it down to a real narrow wall allowing the wrench over the 0 clearance 19mm bolt. A couple taps from the rubber mallet and out she comes.
The slave is now next and if you can believe it the ridgid supply line strips the last nut before dropping the slave with a brand new one sitting right here I can't get the nut to give. Now if armed with a replacment line I'd just cut through the old one and get busy installing. I don't have one so to my disgust the old slave stayed on after all.
Fabricated a 1" cutoff of a 17 mm allen wrench to reach the fill hole in the snail shell tranny and replaced with sae 90 almost three quarts. Put a 3/8 in. clear rubber hose to the quart bottle tip the other end in the fill hole. Took a metal awe and punched a hole in the bottom flipped it up and with a compressor air nozzel pumped up the plastic bottle. 40 seconds per quart, done.
Bled the brakes and sprayed the calipers with brake cleaner Now two questions ..Did I over look anything pressing to be done to a car sitting for 10 years?
And the reason I'm writing this is while taking the car out for the first time in 10 years not really pleased that the clutch it doesn't engage until nearly to the floor board. The car seeming to perform fine suddenly while cruising, in I believe 4th gear this god awful grinding sound starts the car loses power and engaging the clutch does nothing.
I coast to a slower speed the whole time the cars grinding I shift to second the grinding stops and the car powers up then to third and fourth with no sign of anything having just happened. I'm getting a rattle in the shift linkage while applying pressure by hand to the shifter the noise stops.
I imagine its the bushings in the linkage and I'm about to order I think it's four of those and that should be pretty straight forward after I find a post on how that's done but what of this grinding noise right out of the blue.
The car seems to be performing fine and then almost as if something slips out of place and this grinding noise. I went straight back home with it and there it sits until I know what you guys think. Thanks |
_________________ Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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924RACR

Joined: 29 Jul 2001 Posts: 9128 Location: Royal Oak, MI, USA
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Posted: Thu Apr 29, 2010 11:28 pm Post subject: |
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Not sure about that grinding noise.
But before you even try to put a timing belt on it:
Get yourself a good set of metric tools!!!
Most of your problems are right there, from the get-go - you're trying to work on a very sophisticated car with what sounds like a very rudimentary set of tools.
I've never experienced the problems you describe, but I do have a wide range of metric tools.
You will need the same. Period. _________________ Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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POOCH
Joined: 20 Apr 2010 Posts: 8 Location: S.E. Wisconsin
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Posted: Thu Apr 29, 2010 11:59 pm Post subject: |
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| Hey thanks for all the constructive comments. Actually can't imagine how I couldn't have mentioned it during my novel but did replace the timing belt just prior to storing it. Though if that wasn't done right that would result in engine symptoms not grinding of the gears right. I realize a grinding sound could be one of many problems I just thought somone might recognize this particular case. Thanks again for the imput! |
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PORSCHEV

Joined: 02 Nov 2002 Posts: 1901 Location: Cedar Lake Nova Scotia, Canada
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Posted: Fri Apr 30, 2010 12:11 am Post subject: |
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Very painful to read..try Bullets next time.
This is what was wrong
- this
-this
This is what I did to fix them
-this
-this
From what I get out of it.... you left the old slave cylinder in the car and rounded off the bleeder.
-you now have air in the system. There fore you can't disengage the clutch fully. _________________ 1976 924
5 lug conversion, 17'C2 wheels,custom body work,327 vette engine.
1978-#53 "D" track racer. |
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DOCO

Joined: 04 Aug 2006 Posts: 1111 Location: Keswick Ontario Canada
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Posted: Fri Apr 30, 2010 12:35 am Post subject: |
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the grinding noise is probly coming from trans.they can partially disconect the gear they are in.could be linkage,could be a mount and the moter shifts and pulls it partly out of gear.take it for anouther drive and if it does this again make sure the shifter goes to neutral,even if yoiu have to do ityour self.see if you can stop the noise by moving shifter or just downshift it to third.if the noise gose away its linkage ,mount ,internaltransprob _________________ Doco "where am i going and why am i in this handbasket"author unknown
79 924 N/A "Webster"
_______
/______\
[+]___[+]
\0 924 0/
[__]..[__]
"WEBB STR" |
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Joes924Racer

Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Fri Apr 30, 2010 1:20 am Post subject: |
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Was gonna ramble bout noises bearings can make when driving
i had a set of the inner let go ...well the sound thay made was thunderous.
Now bout getting the slave, you can do it, buddy. Now beside a metric
tool set you need a vacum pump and replace the bleeders with speed
bleeders. You can now get the air out of the brake sys. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.
Last edited by Joes924Racer on Fri Apr 30, 2010 1:35 am; edited 1 time in total |
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Rasta Monsta

Joined: 12 Jul 2006 Posts: 11733 Location: PacNW
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Posted: Fri Apr 30, 2010 1:32 am Post subject: |
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| POOCH wrote: | | did replace the timing belt just prior to storing it |
Ten years ago. . .please replace before firing it up again. _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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Mike924

Joined: 12 Aug 2004 Posts: 2601 Location: IoW UK
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Posted: Tue May 04, 2010 4:55 pm Post subject: |
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^+1! _________________ 1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd
'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org |
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