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> I had a dream, It was about a 6
Optimusglen
post May 17 2021, 05:53 AM
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There are some 2.2T heads in the classifieds right now. Selling for half of what head work cost me on mine.
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DavidSweden
post May 23 2021, 02:05 PM
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Thanks for sharing all the good advice/knowledge
I did not want to put the engine in the car and end up with a major problem and as I enjoy taking things apart....... did I make the right decision and what do these picture tell the initiated?

Heads 1 to 3 from left to right
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mb911
post May 24 2021, 06:34 AM
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Looks like it needed some new seals anyway
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Retroracer
post May 24 2021, 01:05 PM
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I think you did the right thing FWIW. Lots of carbon and unknown valve seat condition...

I agree with @mepstein - your lowest cost / best value alternative is a top end overhaul, clean & inspect cylinders and pistons, new rings; and, don't split the crankcase. If you do, dollar bills get sucked in....

- Tony
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mepstein
post May 24 2021, 01:56 PM
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QUOTE(Retroracer @ May 24 2021, 03:05 PM) *

I think you did the right thing FWIW. Lots of carbon and unknown valve seat condition...

I agree with @mepstein - your lowest cost / best value alternative is a top end overhaul, clean & inspect cylinders and pistons, new rings; and, don't split the crankcase. If you do, dollar bills get sucked in....

- Tony


Listen to Rory over me. He is an actual Porsche tech. I'm a beginner.
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DavidSweden
post Jun 20 2021, 12:22 PM
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After the problems I discovered with the heads, I could not stop myself splitting the case and I found more problems.

The thrust bearing at the flywheel end was toast, big pieces missing, on the positive side there does not appear to be any damage to the case or crank. What would cause this type of bearing failure?

What was a bit worse was one that the number 6 bearing had rotated in the case, the oil hole in the bearing shell was full with what looked like metal (molten from the bearing?) and both bearing tags have cut into the case, there is also a round metal deposit on the bearing seat in the case (deposited through the oil hole in the bearing shell) this is probably more molten bearing metal?

Can anyone tell me how serious this damage is?

Thanks in advance.


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porschetub
post Jun 20 2021, 02:55 PM
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QUOTE(DavidSweden @ Jun 21 2021, 06:22 AM) *

After the problems I discovered with the heads, I could not stop myself splitting the case and I found more problems.

The thrust bearing at the flywheel end was toast, big pieces missing, on the positive side there does not appear to be any damage to the case or crank. What would cause this type of bearing failure?

What was a bit worse was one that the number 6 bearing had rotated in the case, the oil hole in the bearing shell was full with what looked like metal (molten from the bearing?) and both bearing tags have cut into the case, there is also a round metal deposit on the bearing seat in the case (deposited through the oil hole in the bearing shell) this is probably more molten bearing metal?

Can anyone tell me how serious this damage is?

Thanks in advance.


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Oh dear not what you were expecting (IMG:style_emoticons/default/sad.gif) ,there was talk on Pelican a while back about a bad batch of Glyco bearing which were delaminating the white metal as per your issue,it was said that the top engine builders in the US stopped using them and went Federal Mogal brand if memory serves me.
This issue was occurring in a rather sort period of time ,to me it looks like white metal has migrated to the bearing that has spun,biggest problem here is all that crap has gone thru the engine ,I would expect the oil pump with be damaged and the oil cooler will full of it not to mention other area's of concern.
Personally I would look for another shortblock as the cost to remedy that case could end up to be very expensive,most likely better not to go there as a replacement may only require a line bore and oversize bearings.
Sorry to see you have this issue,good luck.
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mepstein
post Jun 20 2021, 03:34 PM
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Get a quote from your machine shop and go from there. When you buy any core engines be, it’s impossible to tell what you have until you open it up.
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sixnotfour
post Jun 20 2021, 04:19 PM
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Rod Bearings have to be worse...
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Shivers
post Jun 20 2021, 04:45 PM
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Well bummer, sorry dude. I love those little short strokes. I was looking forward to hearing it. Maybe someone here has a case they're using as a door stop, that needs less work.
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ClayPerrine
post Jun 20 2021, 06:59 PM
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The 2.2T is a mag case, so I would consider it a doorstop now.

If you were any closer to me, I would give you a good case I have from a 72. 2.4. But shipping it halfway around the world probably won't be cost effective.

If the crank is not damaged, I would suggest you get a replacement case.

You can find a case from a 2.2 or a 2.4. The spigot sizes are the same. The only difference is the 2.2 uses a 66mm stroke crank, and the 2.4 uses a 70.4mm stroke crank.

Good luck.

Clay
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Retroracer
post Jun 20 2021, 08:56 PM
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QUOTE(mepstein @ Jun 20 2021, 02:34 PM) *

Get a quote from your machine shop and go from there. When you buy any core engines be, it’s impossible to tell what you have until you open it up.


I agree - get a quote from a knowledgeable machinist before writing the case off. Also, at this point, strip down the rest and see what the rod bearings look like; cams, followers, etc

Figure out what is usable and what needs replacing - them move from there.

- Tony

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porschetub
post Jun 20 2021, 10:49 PM
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QUOTE(mepstein @ Jun 21 2021, 09:34 AM) *

Get a quote from your machine shop and go from there. When you buy any core engines be, it’s impossible to tell what you have until you open it up.


Yes and no,you have to be unlucky to find a case /crank that has suffered this kind of carnage and this repair isn't viable simple as that,whipping a dead horse as they say.
sixnotfour added more to this issue,besides a 66mm crank is worth little and not worth machining the one the OP has and it will be toast,oversize bearings are expensive too ,without issue these cranks will polish and still be within stock spec.
The 2.2T 2.4T is a very under stressed motor in stock form and I think folks tend to group them in with 2.7 issues because they are magnesium....wrong really the issues are the the 2.7 not the other smaller displacement motors .
Rant over.

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DavidSweden
post Jul 8 2021, 11:32 AM
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Bad news from the machine shop it looks like the 2,2 T case will be difficult to put right (IMG:style_emoticons/default/headbang.gif)
Their advise is to find a replacement case, that is not what I wanted to hear. If anyone has a servicable 2,2T crankcase they want to part with then please get in touch.

Thanks in advance
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mepstein
post Jul 8 2021, 12:25 PM
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I’m pretty sure I have one. I’ll check at the shop tomorrow.
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ClayPerrine
post Jul 8 2021, 12:44 PM
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I have a serviceable 2.4T crankcase. The only difference between a 2.2 and a 2.4 is the crankshaft. The spigot sizes are identical.

Clay
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Mark Henry
post Jul 8 2021, 02:58 PM
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Get the case sent to Ollie's (etc) while it' still in the US.
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