3.0 teardown

[al lkosmal]

This 3.0 was running badly........reportedly was making nasty banging noises....it was shipped to me to tear-down/investigate

I think i spotted the problem.....

[Mixed76]

Hah! Oops!

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[Rick Cabell]

I have hear of people doing that but never actually seen a case till now.

[boyt911sc]

Did they have this on both sides?

Tony

[al lkosmal]

yep...this is the first time I've seen this too.....just on the 4,5,6 side...plugs on the 1,2,3 side looked sooty/rich...plugs on the 4,5,6 side looked unused.....leakdown on the 1,2,3 side good, on the 4,5,6 side bad...likely bent valves. not easy to see in the pic, but definitely valve/pistons trying to share the same space, at the same time.

[al lkosmal]

Also, no base gaskets installed....which added to the interference.

[john walker's workshop]

Drugs.

[wgirardot]

Originally Posted by john walker's workshop

Drugs.

The devil is in the details. Nuff said

Bill

[Dpmulvan]

Looks like someone got lucky could have been way worse.

[shamrok]

Genuinely curious how long it ran like this, impressive.

[al lkosmal]

Originally Posted by shamrok

Genuinely curious how long it ran like this, impressive.

Zero miles......

[porschedude996]

Do I see Pistons Upside Down?

[porschetub]

Originally Posted by al lkosmal

Zero miles......

Wow,as they say "don't drink and drive " or top overhaul a 911 motor,looks like the pistons have been attacked with a grinding disk !!! ???.

[al lkosmal]

Originally Posted by porschedude996

Do I see Pistons Upside Down?

Yes, that is what you are looking at there....pistons are rotated 180 degrees out. Lot's of other strange assembly practices going on as well....all rockers shafts are RTV'd on the ends , no base gaskets on the cylinders..... kind of a mess....but i'll make it all better.