|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
|
LinkBack | Thread Tools | Display Modes |
#51
|
|||
|
|||
Quote:
|
Sponsored Links | |
|
#52
|
|||
|
|||
Quote:
Any other suggestions? Thanks everyone for the positive comments and suggestions!!! |
#53
|
|||
|
|||
Remember when I was trying to turn over the car during this job and ran into a very firm obstruction to TDC? That is #1 TDC
Do you guys think that a coolant filled chamber forced to torn with a breaker bar slowly would have caused this crack? If the bottom end doesn't ususally have problems (and I'm sure plenty of people overheated and statistically there have been few bottom end problems), What are the chances this is self induced punishment?? |
#54
|
||||
|
||||
You had plugs out, right, which would allow any fluid some form of venting? I can't image hand cranking causing a crack on a cool (not operating temp or below freezing) engine.
|
#55
|
||||
|
||||
I'd take a good look at the motor mounts while the engine is out as well.
__________________
2014 BMW 328i Xdrive 2011 BMW 335i M-Sport 2008 BMW X5 4.8i Sport 2000 BMW 528i 5sp |
#56
|
|||
|
|||
Would you guys reuse the new valve seals?
I'm leaning toward just spending the $50 and putting in new. |
#57
|
|||
|
|||
Quote:
I used quite a few of them while decarbonizing and degasketing. When I was done with 1 and 2 I replaced spark plugs. When I ran into the hard stop, I removed them and the engine still had some resistance. It wasn't until I pulled bank 2 plugs that it moved freely again. Currently bank 2 head is untouched except valve seals. I think someone is going to say there is another crack in bank 2. |
#58
|
||||
|
||||
I know hindsight is always 20-20, and I post this only to show others who may not be aware of this technique, but I thought I would post a link to the one tool that could have saved a massive amount of effort:
https://store.snapon.com/Leak-Tester...k-P642924.aspx When you have either a cracked block, head, or a sometimes a bad head gasket, what happens is that combustion gasses get into the coolant. This can be detected with this simple device. Then you know for sure it's time to pull the head(s).
__________________
2014 BMW 328i Xdrive 2011 BMW 335i M-Sport 2008 BMW X5 4.8i Sport 2000 BMW 528i 5sp |
#59
|
|||
|
|||
Quote:
I was suggesting swapping heads as from what I understand he just had a valve job and decarbonizing done on his heads. All junkyards warranty the engine as replacement only and for a short period of time. Not selling you a bad engine is part reputation, and part the reality that there's a lot of labor involved for them to remove an engine. There is no shortage of X5's in junkyards so they will sell you one from a car that came in totalled in a wreck where it's fair to assume it was running, the mileage is known, and had passed smog at most 2 years ago. Cars that are sold to them with expired registration or from the impound lot they just assume something is wrong with the engine and might pull the heads off to sell but with engines as popular as ours most likely straight to the crusher. |
#60
|
|||
|
|||
IMO, having read through the thread, I would reuse the whole head you've worked on. But if not, then I'd reuse the valve stem seals. If you installed them carefully and with assembly grease, they're probably just fine. Check for nicks, but they should be usable.
|
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|