924Board.org

germ924 · Posted: Sun Oct 03, 2010 1:50 am Post subject: I'm back and now I have issues

I got my car back. it has been sitting, now I can't get the crank to turn.
how can I get it unseized.
i pulled the plugs and the cam will turn. but the crank will not.
help

bnoon · Posted: Sun Oct 03, 2010 4:20 am Post subject:

If the crank won't turn, it's time to pull the motor. You may get them unstuck using any method, but it's too late as damage has been done to the bearings themselves most likely.
_________________
'80 924 Turbo - SOLD!
1986 Porsche 944 Turbo - SOLD!
Porscheless

germ924 · Posted: Sun Oct 03, 2010 5:10 am Post subject:

i just sprayed some wd-40 into the cylinders to see if that releases the rings. I'll let you know

Arvidw · Posted: Sun Oct 03, 2010 7:46 am Post subject:

How long has it been sitting?
_________________
Porsche 924 2.0 Kompressor 136.1wHp @ 5650rpm / 201.9wNm @ 3900rpm (dyno @ dp-engineering.nl)

924guy · Posted: Sun Oct 03, 2010 10:49 am Post subject:

ive seen engines get unstuck by pouring transmission fluid into the oil fill, letting it sit a day or two, then rocking the crank back and fourth until it spins again. obviously you would want to flush the engine before starting, and i have no idea if this will damage anything else, proceed at your own risk...
_________________
Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
http://www.cardomain.com/id/924Guy
Performance by Pasha

germ924 · Posted: Sun Oct 03, 2010 10:52 am Post subject:

[quote="Arvidw"]How long has it been sitting?[/quote]
just 1 year give or take a couple months, that was when i put the starter in it. i turned it over then. i live in Arizona though

germ924 · Posted: Sun Oct 03, 2010 10:53 am Post subject:

[quote="924guy"]ive seen engines get unstuck by pouring transmission fluid into the oil fill, letting it sit a day or two, then rocking the crank back and fourth until it spins again. obviously you would want to flush the engine before starting, and i have no idea if this will damage anything else, proceed at your own risk...[/quote]
thanks, this will be my last resort

Martijnus · Joined: 29 Dec 2006 Posts: 2019 Location: Netherlands

if it's stuck, then something is broken.

the cylinders have major rust, or the bearings are seized. Either way, don't expect the engine to be like 'new' when you loosen it up.... some parts are still f'ed.

it depends on what your intentions are... if you just want it to run, loosen it up. if it has to be good and reliable, i'd at least pull the head.
_________________
"Rule: Turbo's make torque, and torque makes fun." (C. Bell)

924 "50-jahre", 1981.
MSII/extra, LPG, ITB's, 5lug.
To be turbo'ed in a while.
Killed her at the Nurburgring, Porscheless at the moment

Joes924Racer · Posted: Mon Oct 04, 2010 3:16 am Post subject:

Germ 4 u. How hard would it be to pop the head off and oil pan
and just loosen the crossmember and let it hang down ebough,
then investigate for a damage report by pulling some bearing caps.
Maybe you couls start on the bottem and work up to the head.
youll only be checking bearing cap ends and you should be able
to see up into the cyl. wall with a small light.

_________________
1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

924guy · Posted: Mon Oct 04, 2010 4:43 am Post subject:

just out of curiosity, did you check the starter? if its locked up in the engaged position, the engine wont spin either...
_________________
Eric
78 924
82 931 SE "smokey"
99' VehiCross
Y2K Honda Insight
http://www.cardomain.com/id/924Guy
Performance by Pasha

germ924 · Posted: Mon Oct 04, 2010 11:36 am Post subject:

its seized you guys. i tried pulling it in 5th and the clutch was just slipping.

joecitizennn · Joined: 12 Sep 2005 Posts: 2096 Location: no mans land

engines dont seize from just sitting. Unless they are sitting underwater...

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

sorry this is just silly...what do they make cars from in/for USA? crap?

did the car go underwater? did somebody pour water into the cyls? did someone run the car without coolant and/or oil until it jammed the engine?

if the car ran when you left it....it should run now...even if it sat outside...one year is not that much for a car to sit.
my car sits 6 months every year and starts at 1/4 turn of a key.

take the plugs out....put it in neutral...take a 24mm wrench and turn the engine by hand using the crank.
_________________
Supercharger and EFI kits
https://www.the924.com

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

BTW, WD-40 does very little for rust issues. It just displaces water (helping to prevent rust from forming, but does not break it up at all) Use PB-blaster or the like.

I think at this point, it is time to pull the head at least. Assuming that pulling the plugs and putting a ratchet and socket on the crank bolt doesn't net anything but swearing.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

germ924 · Posted: Tue Oct 05, 2010 12:29 pm Post subject:

[quote="morghen"]sorry this is just silly...what do they make cars from in/for USA? crap?

did the car go underwater? did somebody pour water into the cyls? did someone run the car without coolant and/or oil until it jammed the engine?

if the car ran when you left it....it should run now...even if it sat outside...one year is not that much for a car to sit.
my car sits 6 months every year and starts at 1/4 turn of a key.

take the plugs out....put it in neutral...take a 24mm wrench and turn the engine by hand using the crank.[/quote]

i think I know what happened,
last winter we had it real bad here, I think since there was just water and not antifreeze, the block froze and it cracked, i found rust on the 4th cyclinder plug. this is all I can think of.
it turned over perfectly 1 year and 1/2 ago when I changed the starter.