What is my next move?
#16
Rennlist Member
I can imagine a scenario where a plastic part of the chain tensioning system breaks but is held in place by the rotating parts of the engine, then drops into a position where it jams the chain when the engine stops. A similar thing happened in the engine in the 996 that Imo000 repaired, the difference being that in his case the engine was running when the plastic jammed the chain and that led to bent valves.
#17
Racer
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UPDATE Feb 5
Dropped the oil pan for inspection
Dropped the oil pan for inspection
- NO metal
- Small pieces of orange sealant that was used to seal oil pan to case (normal)
- Small pieces of black plastic (see below) in pan & oil pick-up strainer -> timing chain guide pad???
#18
Race Director
Stuff could have been in there from day #1.
Since it appears the engine was running fine when it was shut off then failed to start because it is believed the engine is locked up the engine didn't run any time so if there is something busted it didn't have time to get munched up and thus there are no real signs of any fragments/debris in the pan. If something failed it jammed the engine I guess immediately and thus remains pretty much intact..
If you are sure you can't turn the engine at least 2 complete revs with the plugs out you have to remove the transmission to ensure the transmission or the clutch is not the problem. If after the transmission is removed and you still can't turn the engine you have to remove the engine and open it up.
Since it appears the engine was running fine when it was shut off then failed to start because it is believed the engine is locked up the engine didn't run any time so if there is something busted it didn't have time to get munched up and thus there are no real signs of any fragments/debris in the pan. If something failed it jammed the engine I guess immediately and thus remains pretty much intact..
If you are sure you can't turn the engine at least 2 complete revs with the plugs out you have to remove the transmission to ensure the transmission or the clutch is not the problem. If after the transmission is removed and you still can't turn the engine you have to remove the engine and open it up.
#19
Rennlist Member
Stuff could have been in there from day #1.
Since it appears the engine was running fine when it was shut off then failed to start because it is believed the engine is locked up the engine didn't run any time so if there is something busted it didn't have time to get munched up and thus there are no real signs of any fragments/debris in the pan. If something failed it jammed the engine I guess immediately and thus remains pretty much intact..
If you are sure you can't turn the engine at least 2 complete revs with the plugs out you have to remove the transmission to ensure the transmission or the clutch is not the problem. If after the transmission is removed and you still can't turn the engine you have to remove the engine and open it up.
Since it appears the engine was running fine when it was shut off then failed to start because it is believed the engine is locked up the engine didn't run any time so if there is something busted it didn't have time to get munched up and thus there are no real signs of any fragments/debris in the pan. If something failed it jammed the engine I guess immediately and thus remains pretty much intact..
If you are sure you can't turn the engine at least 2 complete revs with the plugs out you have to remove the transmission to ensure the transmission or the clutch is not the problem. If after the transmission is removed and you still can't turn the engine you have to remove the engine and open it up.
#20
Woke up yesterday and saw it was going to be a nice day. Decided to take the Boxster. Got in, dim lights and clicking. Drove it the day prior. Was at the dealer less then a week ago for a full inspection post purchase and confirmed no issues.
Guess what was wrong? Battery needed to be replaced. Showed perfect readings last Saturday. By Tuesday, needed to be replaced.
Hook it all all back together and connect a new battery to see if it cranks.
Guess what was wrong? Battery needed to be replaced. Showed perfect readings last Saturday. By Tuesday, needed to be replaced.
Hook it all all back together and connect a new battery to see if it cranks.
#21
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Update Feb 9 -> photos below
- transmission out -> no change
- clutch pressure plate & disc out -> no change
- flywheel off -> no change
#25
I'd guess I'd go to Harbor Freight and get a $50 engine stand. Saves your back and gives better control when working on it. Do you have a cherry picker? If you were close, you could use mine. HF sells those, too. I've used mine enough that it's paid for itself--I think it was about $150 when I got it. I'm really sorry, it's clean because it's such a low mileage engine. If the engine is salvageable, you should do the IMS bearing. Such a babied car!
#26
RL Community Team
Rennlist Member
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I'd guess I'd go to Harbor Freight and get a $50 engine stand. Saves your back and gives better control when working on it. Do you have a cherry picker? If you were close, you could use mine. HF sells those, too. I've used mine enough that it's paid for itself--I think it was about $150 when I got it. I'm really sorry, it's clean because it's such a low mileage engine. If the engine is salvageable, you should do the IMS bearing. Such a babied car!
Here's an M96\25 on one:
#27
Battery was (4) years old and obviously not operating to designed intent. Put a new battery in the Honda and voila - happy wife.
#28
My wife’s Honda CRV recently had these same exact symptoms. Pulled the battery and took it to Autozone. Battery tested fine using their diagnostic tools.
Battery was (4) years old and obviously not operating to designed intent. Put a new battery in the Honda and voila - happy wife.
he states further above that even with the transmission, serpentine belt, spark plugs etc removed he still can’t manually turn the crank more then a few degrees. So he’s got bigger problems then a battery. stay tuned and hopefully he’ll let us know what is locked up inside(with pictures would be a bonus).
#29
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Update Feb 17
Ugh.....
- all camshafts & all timing chains OK
- all valves OK
- cylinder 1 piston cracked at top -> removed 2 chunks by hand -> photos below
Ugh.....
Last edited by tt9714; 02-18-2019 at 01:08 PM.
#30
Former Vendor
Bad gas/ low octane.. or knock sensing was compromised. I have seen this a few times, usually the piston shatters.