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Grenadiers · Posted: Fri Dec 20, 2013 6:59 am Post subject: Head banging valves, a pictorial

Well, the engine is on the stand, the head is off, plenty of bent stuff! I can't seem to compress the springs on the bent valves to remove them. Are these bent too badly to fix? The gouges on the pistons are not pretty either. I can replace those with some used Series II pistons.

Looks like the engine was burning a little oil too. Some oil at startup, but it went away.

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'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Interesting. It appears that only the exhaust valves are bent.

Strongly recommend that you carefully inspect the rods. You might even consider replacing them.

Long after I disassembled the 941 motor, I was incredulous to find that one of the rods was quite noticeably bent...presumably the one from the #2 piston, which had the valve impressions and the floating valve guide. I'm guessing that the bent rod occurred from a previous timing belt failure and the previous owner only rebuilt the head, not bothering to inspect the lower end.
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erstwhile owner of just about every 924 variant ever made

emoore924 · Joined: 13 Apr 2004 Posts: 2822

Grenadiers · Posted: Tue Dec 24, 2013 7:47 am Post subject:

The front crank bolt backed out and the upper and lower parts of the engine went their different ways! I had the 36-1 missing tooth EDIS bit in front of pulley, hiding that bolt. I ordered up a new 36-1 from Dan, so it'll be behind the pulley.

All the valves are out of the head; took some effort.
_________________
'83 944 Track car.
'88 924S Track car.
'89 944 Turbo
2004 Winnebago Vectra monster RV
2012 Jeep Wrangler
2014 Kia Soul
2001 Ford F350 powerstroke