Crankshaft not centered
05-14-2010, 02:49 PM
#31
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I think that raises a good point - and back to the OP about this "clutch blow out" which we still dont know what means... but if the clutch just went out and didnt explode otr anything and there was no vibration before the clutch job and there was after... why was the RMS removed..
again Jake, I know its been tough to stop in here and thanks for your input - you said the engines that are not centered can be "fixed" thru a full teardown and some machine work and rebuilt?? That is differant than I heard. I was told there needed to be a donor motor, but if you can re-machine the cradle/case mouonting to allign the crank and rear bore that is good news (still not cheap, but good to know)
I have said again and again this is not a cure for the vibration if it is a simple case of mis-alignment... but if thats all that is wrong AND you can get it to seal via the amount of available "play" in the seal... I would not be replacing that motor - find the smoking gun causing the vibration (clutch/flywheel suspect)
OH and why not pop in an IMS retrofit while you have this all apart? (I sound like a broken record)
again Jake, I know its been tough to stop in here and thanks for your input - you said the engines that are not centered can be "fixed" thru a full teardown and some machine work and rebuilt?? That is differant than I heard. I was told there needed to be a donor motor, but if you can re-machine the cradle/case mouonting to allign the crank and rear bore that is good news (still not cheap, but good to know)
I have said again and again this is not a cure for the vibration if it is a simple case of mis-alignment... but if thats all that is wrong AND you can get it to seal via the amount of available "play" in the seal... I would not be replacing that motor - find the smoking gun causing the vibration (clutch/flywheel suspect)
OH and why not pop in an IMS retrofit while you have this all apart? (I sound like a broken record)
05-14-2010, 04:50 PM
#32
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I received the email from the original poster. I'll reply here.
First, a question: Was this engine suffering from RMS leakage prior to being disassembled? From the pics it looks to have been mostly dry with only some residual oil being noted from the old seal extraction.
This issue of the crank not being centered is actually due to the entire crankshaft carrier not being centered within the block halves. We have developed a method of repairing this with the engine disassembled, but there is no cure for it if still together except a full tear down.
If taken to a facility filled with "rule followers" and book readers the only solution would be to replace the engine, or pull it apart and have us do the required work to re-center, which would cost more than a new engine.
If I was in this position and the RMS was not leaking prior to disassembly I'd apply the newest Porsche RMS, put it back together and hope like hell it didn't leak. The new seals are very durable and they do conform to changes in the positioning of the seal flange more than the originals. I'd say if it wasn't leaking before you have a good chance that it won't leak again with the new seal, but it is a risk that could lead to wasted dollars for reassembly.... or it could lead to a lot of savings.
According to the "book" you are screwed, but in reality you might not be. Are you a gambling man?
First, a question: Was this engine suffering from RMS leakage prior to being disassembled? From the pics it looks to have been mostly dry with only some residual oil being noted from the old seal extraction.
This issue of the crank not being centered is actually due to the entire crankshaft carrier not being centered within the block halves. We have developed a method of repairing this with the engine disassembled, but there is no cure for it if still together except a full tear down.
If taken to a facility filled with "rule followers" and book readers the only solution would be to replace the engine, or pull it apart and have us do the required work to re-center, which would cost more than a new engine.
If I was in this position and the RMS was not leaking prior to disassembly I'd apply the newest Porsche RMS, put it back together and hope like hell it didn't leak. The new seals are very durable and they do conform to changes in the positioning of the seal flange more than the originals. I'd say if it wasn't leaking before you have a good chance that it won't leak again with the new seal, but it is a risk that could lead to wasted dollars for reassembly.... or it could lead to a lot of savings.
According to the "book" you are screwed, but in reality you might not be. Are you a gambling man?
Will speak to the tech about putting in a new RMS and report back.
Thank you
05-14-2010, 04:52 PM
#33
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The clutch went out and a friend of mine was driving, he continued to drive which cause the flywheel to go out and push to get off the freeway until the engine started to smoke and vibrate :-( i will never let anyone take my car out again. This is the second time :-(
05-14-2010, 05:03 PM
#34
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send your "friend" the bill
OK so back to the original Q: the clutch went out when some one else was driving... but ?not blown up" the engine was smoking???? and vibrating???? clutch was replaced, engine still vibrates, tech then removes RMS and says get a new motor...
this story has more to it and we are having trouble helping w/o more detailed info
OK so back to the original Q: the clutch went out when some one else was driving... but ?not blown up" the engine was smoking???? and vibrating???? clutch was replaced, engine still vibrates, tech then removes RMS and says get a new motor...
this story has more to it and we are having trouble helping w/o more detailed info
05-14-2010, 05:23 PM
#35
A clutch when burning it will smoke really bad. Being a clown unfamiliar with driving a car smoked his clutch thinking he was smoking the tires I imagine he kept smoking the clutch to aparently the death of more than the clutch. I'm not sure how far along the shafts the glowing heat of the metal will transmit but it seems it went as far as the rms to smoke it too.
Porsche has no plan to add a little voice to broadcast "I'm giving it all she can take captain, she can't take it much longer captain"
Yah screw letting clowns drive what you've got.
Porsche has no plan to add a little voice to broadcast "I'm giving it all she can take captain, she can't take it much longer captain"
Yah screw letting clowns drive what you've got.
