924Board.org

kenman1 · Joined: 11 Jun 2014 Posts: 1 Location: perkiomenville, pa

My 1987 924s has been sitting idle in the garage for ten years now. It ran well went it was driven in there and was just shut off and the battery removed. We would like to start it again for use. A sad tale of regret for not keeping it started monthly. It only has 56k on it and I bought it new in 1986.

In such, I plan to:
-drain and replace the oil and filter.
-remove and replace the old gas and drain the fuel lines.
-clean up the air filter
-fog or squirt a little oil (or tranny fluid) into the cylinders
-handturn the engine over several revolutions or turn without the coil?
-turning it over with the starter with the plugs out to build up oil and fuel pressure
-add battery ang give it a go

Questions:
-Do I need to drop and drain the oil pan as well?
-Is there a gas tank drain plug or will I need to pump it out?
-Should I then add anything to the new gas?
-Is there a way to even hand crank the enginet? How? I am no mechanice, but a frind who is is helping out.

Anyother advice would be greatly appreciated. I don't want to damage anything, but can't spent a ton of money either. I would just like to get it at least started for now and go from there.

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

You can turn the engine by hand with a socket on the front pulley bolt. . .24mm socket.

However, THIS IS NOT RECOMMENDED!

You need to replace the timing belt, at a minimum, before attempting to fire the engine, turn it with the starter, or by hand.
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WeiBe (1987 924S 2.5t) - 931 S3

Paul · Posted: Wed Jun 25, 2014 12:06 pm Post subject: Re: reviving sitting 1987 924s

dash16 · Joined: 22 Aug 2007 Posts: 255 Location: Cali Cali

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Yes!
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

edredas · Joined: 09 Dec 2004 Posts: 861 Location: Charlotte, NC

I don't really see the problem with turning it by hand. It should require very little effort to turn the engine with a socket, and if it doesn't move, then don't force it!

If the engine spins freely, then it is most likely fine, but if if doesn't budge, then the valves were most likely toast beforehand. Gently bumping into the valves by using a socket will not cause damage to the valves or pistons. If you are met with resistance, simply stop!

There are people that have damaged their valves by doing this, but they had to have kept bouncing on the breaker bar when met with resistance. You are not going to have this problem if you are careful.

The reason so many belts break at idle, is because only one piston is firing at any given time in an inline-four. This causes the crank to speed up and slow down rapidly. This causes the crank to jerk, especially at idle, when the engine is turning its slowest.

Large inline fours like the 3.2 liter in the Ponitac Tempest could shatter chains. However, do not confuse this vibration with the vibration dampened by the balance shafts... they are not related.
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'84 944 -White, Brown interior
'84 944 -Red, Automatic
'86 944 -Garnet, Fully loaded, Koni suspension
'87 924S -Red, 300hp 951 swap
'87 924S -Red, Project Car
'88 924S -Red, Daily Driver

Paul · Posted: Sat Jun 28, 2014 12:29 pm Post subject:

Remove the plugs before trying to turn it gently by hand after you have verified everything is in time.
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.