Loud tapping in bank1 - Page 6

Overboost · #51 12-30-2017, 09:29 AM

Have you tried any kind of additive in the oil? If the engine is still running, try a can of something like this. Back in the 90's the VW Jettas and Golfs would have stuck/noisy lifters and one can of this solved the issue in 2 miles. I guess you have nothing to lose at this point, give it a shot?

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X5M62 · #52 04-08-2018, 12:09 AM

I m back after many months but I found the issue

... Finally took the heads off, was expecting a clogged check valved on Bank 1 but the one on Bank 2 was stuck open with a piece of chain guide. Being open all the time and being on the same side as the oil intake from the filter, the oil took the least path of resistance and didnt have enough pressure to open the valve on bank 1... resulting in low oil pressure on bank 1, tapping and timing issues since it all depends on oil pressure...
$12 valve = 30hrs of labor and months of research.
I remove the entire engine/trans/trans case front end assembly. Will to the front drive shaft,longer splines and transfer case chain...Trans bushings and gaskets, clean her up and hopefully drive it again!! had to buy a Toyota in the meantime to drive to work, the VW bus was getting cold in the winter...

Anyways today is a big day!!!

scourtaud23 · #53 04-08-2018, 10:56 AM

Wow, Well done for not giving up on it and finally founding the issue. Its something to think about and check when doing the timing chain.

Now all that's left is to put it all back in the car and enjoy it at last.

You should've bought an age appropriate eberspaecher heater for the Bus, I've got one in my convertibl beetle for winter, its almost too powerfull.

X5M62 · #54 04-08-2018, 11:49 AM

Yeah! Not too worried about the heater i looked at gas options but gonna drop it a few inches instead... as far as the X5 i noticed the oil coming out of around the vanos area. I think it the pressure release that dumps the oil around the chain and back down the oil pan via the front. I love this Alpina X5 and truly miss it. Though the battle is not over i like coming to the root cause and say... yep thats the issue! Knowing what broke and how it broke is the skill not so much swapping parts..i m glad i was able to salvage the motor... will see how long it lasts.. anyways more to come!

Thx for all the feedback and suggestions i ll try to post some picks.

Fred

X5M62 · #55 04-17-2018, 09:47 PM

Well well well... parts arrived today yay! Rebuilt the transfer case with seals and chain. Now the tranny had a hardshift from 2 to 1.. so decided to send it iff to get checked while out. Simple valve body bore turned into a full rebuild. Including TC valve body, seals, clutch plates, drum etc.. $2600.. i am putting the heads on this weekend.

scourtaud23 · #56 04-18-2018, 02:22 AM

That's one serious rebuild you're going for.

As for lowering the bus, if its an option, try using kersher coilovers, I've got them on my beetle, the ride quality was transformed despite being lowered, its better than it ever was.

X5M62 · #57 06-04-2018, 09:00 AM

So after removing the motor, trans rebuilt and xcase chain replaced along with 200+ parts replaced it s all back together. Started it last week and loud tapping seems gone yeah!! But i have an exhaust leak now so couldn t drive it home :-(
Not bad considering the heads were removed and everything was taken apart. I ll keep u guys posted and add pics. So far so good hope it lasts! The oneway oil check valve in the block feeding the heads was the root cause since it was stuck open😄

X5M62 · #58 09-10-2018, 11:23 PM

Ok so it s been a while..After putting it all back together, I ended up having a loud exhaust leak and a p0032 (if i remember) code which is over-advance cam on bank 2 right off the start. reset came right back. ...but the truck was moving and running strong.So I researched it and come to find out this code is vanos sync with cam and crank sensor within 4 second of start. Had to open it back up !! But luckily bank 2 is the side without the tensioner so I check the cam and sure enough was off...Noticed the pin in the fly wheel will slide in another hole next to the one for TDC..so basically was not fully retarded on bank 2. That code shuts Vanos down if the DME can't detect vanos closed circuit within a few sec as a point of reference... during this procedure I noticed the cracked brackets on the aux air pump tube.. put it back together. and this is where I went wrong :-(

Since i rebuilt the trans i wanted to delete the error codes and when doing so using Progman (Newb with this) something when wrong, not sure if loss of voltage or faulty cable or my stupid (_x_) but I bricked the DME....
Long story short, got ISTA installed and awesome gurus i found in forums helped me setting up a new DME...
Note: Truck would not crank or start water/oil temp were maxed out, which is an indication of DME connectivity issues. I used, INPA, DIS, and a bunch of other software, multiple cables and i couldn't connect the the engine/trans management part of the DME . Everything else worked fine.
I received a DME pre loaded with the daten and E53 files based on my VIN and synced it to the EWS system using ISTA and VOILA!!! Holly shit it started no leak no codes no noise..other than injectors.That being said, tag/insp are dead from a year ago cause I knew nothing about the software side of this..still don't but i got the concepts.. whole different ball game.. anyways..

Looking thru forums the end results or fixes to the problems are not always there so I wanted to close the loop...Thx for reading, ping me if u guys run into odd stuff cause it probably happen to me :-)

upallnight · #59 09-10-2018, 11:31 PM

Quote:

Originally Posted by X5M62

I m back after many months but I found the issue

... Finally took the heads off, was expecting a clogged check valved on Bank 1 but the one on Bank 2 was stuck open with a piece of chain guide. Being open all the time and being on the same side as the oil intake from the filter, the oil took the least path of resistance and didnt have enough pressure to open the valve on bank 1... resulting in low oil pressure on bank 1, tapping and timing issues since it all depends on oil pressure...
$12 valve = 30hrs of labor and months of research.
I remove the entire engine/trans/trans case front end assembly. Will to the front drive shaft,longer splines and transfer case chain...Trans bushings and gaskets, clean her up and hopefully drive it again!! had to buy a Toyota in the meantime to drive to work, the VW bus was getting cold in the winter...

Anyways today is a big day!!!

Nothing wrong with a Toyota. Mom and the kids love riding in the Sienna. We hardly drive the X5 these days.

X5M62 · #60 09-10-2018, 11:36 PM

Yep nothing wrong with it, but it s just not even close to be comparable...

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