| View previous topic :: View next topic |
| Author |
Message |
the4ork
Joined: 17 Dec 2009
Posts: 68
Location: lemoore California
|
 Posted: Fri Dec 25, 2009 6:23 pm Post subject: got the 924 running but... |
 |
|
replaced the headgasket on the 924 and i have never heard it run before...
it runs but it has NO power... feels like a geo metro style power... a golf cart could out run this thing...
going to do a compression test, although when i had the head off and everything looked good, cyl walls and head looked ok.
ive tried moving the distributor around to see how far off the timing was but it got slower in one direction and pinged in the other so i set it back where it was.
still need new wires/cap/rotor as they dont look so hot...
my main concern is if im a tooth off on the timing belt...
has anyone had any experience with being a tooth off on the belt? im guessing a tooth too advanced since it has absolutely no power down low?
any help would be appreciated. i know the cis fuel system pretty well and im pretty certain its not a fueling issue. however i am going to see if the fuel plate is sticking or catching, ive had that happen to my VW before |
|
| Back to top |
|
 |
the4ork
Joined: 17 Dec 2009
Posts: 68
Location: lemoore California
|
| Posted: Fri Dec 25, 2009 6:26 pm Post subject: |
|
|
just to VERIFY...
here is how i did the timing belt.
lined up the slit mark on the crank pulley to the arrowish looking bevel coming out of the block.
i then lined up the dot on the back of (windshield side) of the cam pulley to the beveled arrowish looking thing on the valve cover.
i then popped open the distributor cap and set my #1 plug wire to the position the rotor was pointing
am i missing something? |
|
| Back to top |
|
|
PORSCHEV
Joined: 02 Nov 2002
Posts: 1901
Location: Cedar Lake Nova Scotia, Canada
|
| Posted: Fri Dec 25, 2009 7:06 pm Post subject: |
|
|
The timing mark for the crank shaft is on the flywheel. You will find an inspection hole to line it up from the drivers side of the engine bay IIRC. Your lucky you got as close as you did with the marks you used. 
_________________
1976 924
5 lug conversion, 17'C2 wheels,custom body work,327 vette engine.
1978-#53 "D" track racer. |
|
| Back to top |
|
|
Smoothie
Joined: 01 Jan 2003
Posts: 8032
Location: DE (the one near MD, PA, NJ)
|
| Posted: Fri Dec 25, 2009 10:50 pm Post subject: |
|
|
| the4ork wrote: | lined up the slit mark on the crank pulley to the arrowish looking bevel coming out of the block.
i then lined up the dot on the back of (windshield side) of the cam pulley to the beveled arrowish looking thing on the valve cover.
i then popped open the distributor cap and set my #1 plug wire to the position the rotor was pointing
|
Sounds to me like you did it right. If the flywheel was installed correctly, it can be used for more accuracy than the crank pulley, but using the pulley marks's fine. The crank pulley mark (slit) should be lined-up with a pointer that's cast into the oil pump.
The correct cam timing mark is a dimple on the rear of the cam sprocket that's located at a valley between two teeth.
Vacuum leaks?
Clogged exhaust?
A:F mix way off?
etc.?...
What year? The earliest ones were about 95HP, later 110-~120..
_________________
"..it's made in Germany. You know the Germans always make good stuff."
'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox |
|
| Back to top |
|
|
ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
|
| Posted: Fri Dec 25, 2009 11:19 pm Post subject: |
|
|
Make sure your ignition distributor is indexed properly relative to TDC, and make sure you have the plug leads on in the correct order. The firing sequence is 1-3-4-2, and the dizzy rotation is CLOCKWISE. If you have the plug wires on BACKWARD the car will only run on two cylinders, which could explain your geo metro power feeling 
_________________
erstwhile owner of just about every 924 variant ever made |
|
| Back to top |
|
|
Joes924Racer
Joined: 03 Nov 2002
Posts: 11964
Location: Oregon, Denver Colorado native!
|
| Posted: Sat Dec 26, 2009 5:10 am Post subject: |
|
|
hmm timing issue or air fuel mix..is off sounds kind of like the 2nd
or a vac. leak.
_________________
1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
|
| Back to top |
|
|
the4ork
Joined: 17 Dec 2009
Posts: 68
Location: lemoore California
|
| Posted: Sat Dec 26, 2009 7:08 pm Post subject: |
|
|
ive sprayed carb cleaner EVERYWHERE to find a vac leak but didnt.
its def running on 4
timing is set correctly 1342...
to me it seems like i have a weak spark issue. old wires plugs rotor and cap could be the culprit, and i need to put a timing light on the thing to verify timing is correct.
i'll also make extra care to check the distributor rotor and plug wiring before i go any further.... it def feels like a timing issue to me |
|
| Back to top |
|
|
Ozzie
Joined: 12 Mar 2005
Posts: 4448
Location: Townsville, Qld. Australia
|
| Posted: Sat Dec 26, 2009 7:58 pm Post subject: |
|
|
I'd double check the timing belt still lines up.
could be off a tooth.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance |
|
| Back to top |
|
|
CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
|
| Posted: Sun Dec 27, 2009 1:37 pm Post subject: |
|
|
once it's running as intended and sounds nice, you'll notice it's gutless, sort of like a really slow diesel rabbit. once you have reached this stage, you're good to go!
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
|
| Back to top |
|
|
the4ork
Joined: 17 Dec 2009
Posts: 68
Location: lemoore California
|
| Posted: Mon Dec 28, 2009 1:14 pm Post subject: |
|
|
i had an 82 diesel jetta... its about that fast lol
no way are they suposed to be that fast... ive had a 1.8L 8v GTI and those things are pretty peppy. the diesel jetta is like painfully slow.... like how the porsche is now. surely that 2L 8v in the porche has at least 95-110 HP |
|
| Back to top |
|
|
CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
|
| Posted: Mon Dec 28, 2009 3:09 pm Post subject: |
|
|
| the4ork wrote: | i had an 82 diesel jetta... its about that fast lol
no way are they suposed to be that fast... ive had a 1.8L 8v GTI and those things are pretty peppy. the diesel jetta is like painfully slow.... like how the porsche is now. surely that 2L 8v in the porche has at least 95-110 HP |
95hp in the american models. Don't forget that options and such, etc, different setups and weight. Take into consideration the painfully tall gears in the 4 speeds, and the somewhat "okay" gearing in the 5 speeds and you've got yourself a craptastically 0-60 sometimes feel to it.
Yes, they're really that slow.
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
|
| Back to top |
|
|
Joes924Racer
Joined: 03 Nov 2002
Posts: 11964
Location: Oregon, Denver Colorado native!
|
| Posted: Mon Dec 28, 2009 3:19 pm Post subject: |
|
|
Total bullshit aside.. little mods you do to get it up helps,
a header, maybe a igntition upgrade (msd) or ?? & maybe
itll punch you in the mouth. ( not that gutless). 
_________________
1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
|
| Back to top |
|
|
CorsePerVita
Joined: 25 Jul 2008
Posts: 1992
Location: Redmond, Oregon
|
| Posted: Mon Dec 28, 2009 3:22 pm Post subject: |
|
|
| Joes924Racer wrote: | Total bullshit aside.. little mods you do to get it up helps,
a header, maybe a igntition upgrade (msd) or ?? & maybe
itll punch you in the mouth. ( not that gutless). |
lol yes that's true....
there's things you can do for sure. It's not hard to do weight reduction on these cars, there's plenty of weight to be lost too, all the way down to fenders and other parts, losing the EGR system, etc....
Do you have MSD on yours?
I believe plenty of members here have done head work too, and converted to the euro pistons and such as well...
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
|
| Back to top |
|
|
ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
|
| Posted: Mon Dec 28, 2009 8:56 pm Post subject: |
|
|
FWIW, it was only the really early models that had 95 HP. The mid years had 110, and it was upped to 120 by 1981, while the ROW versions had 125 throughout. My 81 NA with a big bore throttlebody and a cat delete, while not blindingly fast, definitely does not feel slow.
_________________
erstwhile owner of just about every 924 variant ever made |
|
| Back to top |
|
|
wombat
Joined: 07 Jun 2008
Posts: 422
Location: Melbourne, Australia
|
| Posted: Sun Jan 03, 2010 4:06 pm Post subject: Re: got the 924 running but... |
|
|
| the4ork wrote: |
my main concern is if im a tooth off on the timing belt...
has anyone had any experience with being a tooth off on the belt? im guessing a tooth too advanced since it has absolutely no power down low?
|
I have been a tooth off in both directions, yes you can tell that you are off but it shouldnt be quite as bad as described, I have had it running like this once also after doing the head and I cant remember how I got it back now, it was either very far out on the timing 2 or more teeth or something else. Sorry I cant help more.
_________________
1977 924 2.0 Auto |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
924 FAQ (Technical)
