Walnut Blast Turned Into Complete Motor Replacement....

scottychee · 03-14-2013, 08:46 AM

Hey guys, just thought I would share this story with you. Still new to the 1-series community. I recently purchased a 2008 135i that was a lease return, my luck the one previous owner did not take care of her mechanically from what I have experience so far. That aside, I took it to a local certified BMW repair shop to do a walnut blast on the intake valves, that car has 55,000 miles so i figured its about time since I just installed a JB4 and BMS intake. Some how they forgot to tighten back one of the bolts they loosed to manually open and close the intake valves so when it was fired back up, the timing chain slipped and bent the valves

lucky they are covering it all and replacing it with a used motor with 30k miles! So anyone who attempts to do the intake cleaning their self, remember to tighten that bolt back!!! Ill be getting the car back tomorrow, I'm scared its not going to be the same anymore! What do you guys think? I replaced alot of components on my motor so they are taking alot off of my original to put on the new motor. turbos, water cooler, coils, plugs, oil cooler, etc.

cheshirecat79 · 03-14-2013, 09:44 AM

jesus christ what a nightmare

Walter_Sobchak · 03-14-2013, 09:49 AM

Quote:

Originally Posted by cheshirecat79

jesus christ was a nightmare

Sounds like a lottery win to me!

shah269 · 03-14-2013, 09:57 AM

+1!
You are getting a car with only 30k miles on the motor.
As long as you are not going to sell it later off in a hurry you should be ok.
Just make sure you document the motor swap so that when you do sell the car you can explain why the carfax is pinging.

Also while you are at it, speak to the shop and have them adjust what ever else needs to be adjusted or fixed on the car.

Relax, she will be ok. She may have lost her heart...but she has not lost her soul.

cool? and feeling better?

Colt · 03-14-2013, 10:41 AM

Quote:

Originally Posted by cheshirecat79

jesus christ was a nightmare

he did do some horrible plagues that's for sure...

At least they are covering it, could be worse

b1aze · 03-14-2013, 10:51 AM

Quote:

Originally Posted by cheshirecat79

jesus christ was a nightmare

That he was...

IancoleTX · 03-14-2013, 11:06 AM

wow the shop took a huge bath on that job. glad they are covering it.

Experimental · 03-14-2013, 11:25 AM

Quote:

Originally Posted by IancoleTX

wow the shop took a huge bath on that job. glad they are covering it.

In the short term, yes. But on the flip side, had they not covered it, this would have cost them at least this customer, and most likely a few more in the bad press department. Long term, it's the right thing to do.

This is a case study as to why to have a reputable shop do this. There's things that can go wrong in this process that can kill an engine.

RimasRS · 03-14-2013, 11:58 AM

You really are lucky that it was BMW dealer doing that and that they will cover everything. But that is good lesson to keep in mind for everybody.
Can you explain what bolt they forgot and where?

Freon · 03-14-2013, 03:15 PM

I'm wondering why they "loosed a bolt to open and close the valves manually" at all? Why not just turn the crank manually to open and close the valves?

I'm just as curious about what bolt this was. Maybe timing chain tensioner? But why would you do that... That's a lot of work compared to just turning the crank. You have to take the cover off, which probably means removing accessories (not sure, never done it, so feel free to flame), it's messy...

Experimental · 03-14-2013, 11:49 PM

Quote:

Originally Posted by RimasRS

You really are lucky that it was BMW dealer doing that and that they will cover everything.

It wasn't a BMW dealer doing the work though. It was a "certified BMW repair shop" according to the OP.

SteveAZ · 03-15-2013, 04:06 AM

Will the new motor be getting a walnut blast prior to install? I did mine at 30k....it needed it as far as I was concerned (have pics).

Second...that bolt? What the heck? They were manually turning it...sure they didn't leave the socket wrench on the harmonic balancer? When I did my valve cleaning..I used this method, very easy that way but if you get ahead of yourself....not good. If they loosened the tensioner....

Personally, I think the shop should be disclosed. Without a more solid explanation...this is not a shop any of us should be taking our car to.

Cozy · 03-15-2013, 04:41 AM

I have the same concern as Steve, I'd be expecting the 30k motor to be blasted before install plus a warranty with the motor.

dorkdog · 03-15-2013, 06:46 AM

Why should an ENGINE with 30K need that done? It's just a teenager!

Cozy · 03-15-2013, 06:58 AM

Perhaps however, it's had 30k of use/30k in the making of carbon build up and in another 20k could start to show signs of it. Some cars go into 70k+ with no issues but if you have a 'new' motor, wouldn't you want the intake to be as clean as it was from day one, giving you at least 50k of clean motoring?

SteveAZ · 03-15-2013, 09:21 PM

Front bank all looked like this...

Rear bank all looked like this...

30050 miles....like this "new" motor he is getting, I bought my car used with 25K on it...no telling how the previous owners treated it. I had a PPI done by a BMW dealer but they don't look for this stuff.

Did I notice a big difference after...no, just a bit leaner as my trims were already struggling but personally, I don't want average...and all the little things add up.

I've now resolved the trims and going to 100% meth, and have an OCC and an RB PCV so they should stay clean.

The OP paid for a valve cleaning...since he obviously cares about the performance of the vehicle...he should get his valve cleaning! JMO

...and an OCC and PCV if you're going to be running the JB4...seriously

If you want proof, I have more pics

HK-E93 · 11-28-2013, 01:38 PM

Hope things got sorted out and things are fine.

I'm looking to do a walnut blast for my e93 and I'm located in St. Louis. Do you mind telling me what shop you went to?

imported_mega · 11-28-2013, 01:53 PM

why would anyone think they covered it out of kindness, they broke it they have to

lastMleft · 11-28-2013, 01:58 PM

Damn your a lucky guy, pass some of that luck on to me

P90Puma · 11-28-2013, 02:06 PM

What bolt did they loosen? Sounds like they didn't know what they were doing.

Just pull the intake manifold, bump the starter to get the piston TDC, seal other runners and blast, it isn't hard just time consuming.

Experimental · 12-02-2013, 12:59 AM

Quote:

Originally Posted by imported_mega

why would anyone think they covered it out of kindness, they broke it they have to

Not so much that they were being kind to cover it. More so that they could have really dragged their feet on this and forced the OP to sue them to get the car repaired. It sounds like they are making this a fairly painless process for the OP.

Whitenukl · 12-02-2013, 01:55 PM

Very good thing they are covering it....sounds like a win to me though.

03-14-2013, 08:46 AM	#1
scottychee Registered 3 Rep 4 Posts Drives: 2008 BMW 135i Jb4 Join Date: Feb 2013 Location: St. Louis, MO iTrader: (0)	Walnut Blast Turned Into Complete Motor Replacement.... Hey guys, just thought I would share this story with you. Still new to the 1-series community. I recently purchased a 2008 135i that was a lease return, my luck the one previous owner did not take care of her mechanically from what I have experience so far. That aside, I took it to a local certified BMW repair shop to do a walnut blast on the intake valves, that car has 55,000 miles so i figured its about time since I just installed a JB4 and BMS intake. Some how they forgot to tighten back one of the bolts they loosed to manually open and close the intake valves so when it was fired back up, the timing chain slipped and bent the valves lucky they are covering it all and replacing it with a used motor with 30k miles! So anyone who attempts to do the intake cleaning their self, remember to tighten that bolt back!!! Ill be getting the car back tomorrow, I'm scared its not going to be the same anymore! What do you guys think? I replaced alot of components on my motor so they are taking alot off of my original to put on the new motor. turbos, water cooler, coils, plugs, oil cooler, etc.
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03-14-2013, 09:44 AM	#2
cheshirecat79 Captain 32 Rep 919 Posts Drives: 370z & 135i Join Date: Dec 2012 Location: Port Saint Lucie, FL iTrader: (0)	jesus christ what a nightmare Last edited by cheshirecat79; 03-15-2013 at 09:14 AM.. Reason: oops
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03-14-2013, 09:57 AM	#4
shah269 Major 315 Rep 1,035 Posts Drives: 2009 Join Date: Oct 2011 Location: NJ iTrader: (0)	+1! You are getting a car with only 30k miles on the motor. As long as you are not going to sell it later off in a hurry you should be ok. Just make sure you document the motor swap so that when you do sell the car you can explain why the carfax is pinging. Also while you are at it, speak to the shop and have them adjust what ever else needs to be adjusted or fixed on the car. Relax, she will be ok. She may have lost her heart...but she has not lost her soul. cool? and feeling better?
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03-14-2013, 11:06 AM	#7
IancoleTX Dillo boxers 272 Rep 3,360 Posts Drives: 2019 M5C Join Date: Jan 2010 Location: USA iTrader: (14)	wow the shop took a huge bath on that job. glad they are covering it. __________________ 2019 M5C Matte MBB / Tartufo
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03-14-2013, 11:58 AM	#9
RimasRS Colonel 85 Rep 2,438 Posts Drives: BMW X3 SD Join Date: Sep 2010 Location: Europe iTrader: (0)	You really are lucky that it was BMW dealer doing that and that they will cover everything. But that is good lesson to keep in mind for everybody. Can you explain what bolt they forgot and where?
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03-14-2013, 03:15 PM	#10
Freon Major 81 Rep 1,051 Posts Drives: 2009 135i Join Date: Nov 2007 Location: Indianapolis iTrader: (3)	I'm wondering why they "loosed a bolt to open and close the valves manually" at all? Why not just turn the crank manually to open and close the valves? I'm just as curious about what bolt this was. Maybe timing chain tensioner? But why would you do that... That's a lot of work compared to just turning the crank. You have to take the cover off, which probably means removing accessories (not sure, never done it, so feel free to flame), it's messy... __________________ 2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
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03-15-2013, 04:06 AM	#12
SteveAZ Captain 60 Rep 654 Posts Drives: 135i Cab Join Date: Jul 2012 Location: Phoenix, AZ iTrader: (5)	Will the new motor be getting a walnut blast prior to install? I did mine at 30k....it needed it as far as I was concerned (have pics). Second...that bolt? What the heck? They were manually turning it...sure they didn't leave the socket wrench on the harmonic balancer? When I did my valve cleaning..I used this method, very easy that way but if you get ahead of yourself....not good. If they loosened the tensioner.... Personally, I think the shop should be disclosed. Without a more solid explanation...this is not a shop any of us should be taking our car to. __________________ 2008 E88--Fuel-It! Stage 4 LPFP & PI--PS2 turbos--JB4/MHD--FBO--662whp/604wtq 2011 E90--Fuel-It! S2BL LPFP and PI--PS2 Turbo--JB4/MHD--FBO--546whp/589wtq 2013 Mini JCW--Tune--DP--FMIC--a couple Fuel-It! goodies--265whp/320wtq 2013 F10--JB4/BM3 2015 F82--Fuel-It! Stage 3 LPFP & PI--PS2 Turbos-- JB4/BM3-FBO
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03-15-2013, 04:41 AM	#13
Cozy Major 111 Rep 1,487 Posts Drives: E82 135i Join Date: Mar 2011 Location: Surrey, England iTrader: (0)	I have the same concern as Steve, I'd be expecting the 30k motor to be blasted before install plus a warranty with the motor.
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03-15-2013, 06:46 AM	#14
dorkdog Big Mouth No Filter 49 Rep 586 Posts Drives: 128i Montego Blue 6MT Sport Join Date: Feb 2012 Location: Puyallup WA iTrader: (0)	Why should an ENGINE with 30K need that done? It's just a teenager! __________________ We do not inherit the Earth from our parents; we borrow it from our children
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03-15-2013, 06:58 AM	#15
Cozy Major 111 Rep 1,487 Posts Drives: E82 135i Join Date: Mar 2011 Location: Surrey, England iTrader: (0)	Perhaps however, it's had 30k of use/30k in the making of carbon build up and in another 20k could start to show signs of it. Some cars go into 70k+ with no issues but if you have a 'new' motor, wouldn't you want the intake to be as clean as it was from day one, giving you at least 50k of clean motoring?
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03-15-2013, 09:21 PM	#16
SteveAZ Captain 60 Rep 654 Posts Drives: 135i Cab Join Date: Jul 2012 Location: Phoenix, AZ iTrader: (5)	Front bank all looked like this... Rear bank all looked like this... 30050 miles....like this "new" motor he is getting, I bought my car used with 25K on it...no telling how the previous owners treated it. I had a PPI done by a BMW dealer but they don't look for this stuff. Did I notice a big difference after...no, just a bit leaner as my trims were already struggling but personally, I don't want average...and all the little things add up. I've now resolved the trims and going to 100% meth, and have an OCC and an RB PCV so they should stay clean. The OP paid for a valve cleaning...since he obviously cares about the performance of the vehicle...he should get his valve cleaning! JMO ...and an OCC and PCV if you're going to be running the JB4...seriously If you want proof, I have more pics __________________ 2008 E88--Fuel-It! Stage 4 LPFP & PI--PS2 turbos--JB4/MHD--FBO--662whp/604wtq 2011 E90--Fuel-It! S2BL LPFP and PI--PS2 Turbo--JB4/MHD--FBO--546whp/589wtq 2013 Mini JCW--Tune--DP--FMIC--a couple Fuel-It! goodies--265whp/320wtq 2013 F10--JB4/BM3 2015 F82--Fuel-It! Stage 3 LPFP & PI--PS2 Turbos-- JB4/BM3-FBO
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11-28-2013, 01:38 PM	#17
HK-E93 Private 1 Rep 86 Posts Drives: 2007 E93 Join Date: Oct 2011 Location: St. Louis, MO iTrader: (0)	Hope things got sorted out and things are fine. I'm looking to do a walnut blast for my e93 and I'm located in St. Louis. Do you mind telling me what shop you went to?
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11-28-2013, 01:53 PM	#18
imported_mega Colonel 122 Rep 2,199 Posts Drives: various bmw's Join Date: Jul 2007 Location: neverland iTrader: (0)	why would anyone think they covered it out of kindness, they broke it they have to __________________ You only need two tools in life - WD-40 and Duct Tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape. Driving e82, e72, e85, R53 Gone but not forgotten.. 1974 2002, many various 3s.
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11-28-2013, 01:58 PM	#19
lastMleft Major 30 Rep 1,364 Posts Drives: e92 M3 Join Date: Aug 2010 Location: Portland iTrader: (0)	Damn your a lucky guy, pass some of that luck on to me
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11-28-2013, 02:06 PM	#20
P90Puma Would rather be driving. 12 Rep 175 Posts Drives: 2008 135i 6MT M-Sport Join Date: Aug 2013 Location: Ontario, Canada iTrader: (1)	What bolt did they loosen? Sounds like they didn't know what they were doing. Just pull the intake manifold, bump the starter to get the piston TDC, seal other runners and blast, it isn't hard just time consuming. __________________ 135i JB4 w/ BMS Flash
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12-02-2013, 01:55 PM	#22
Whitenukl Private First Class 15 Rep 197 Posts Drives: 09 135i Join Date: May 2013 Location: Virginia iTrader: (1)	Very good thing they are covering it....sounds like a win to me though.
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