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Old 11-25-2011, 11:20 AM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,502
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by moneymike View Post
is there any tests to know for sure if there is internal damage?
  • Good news first: You're not the first person to have a lost cause for a brother!
  • Now for the bad news. This happens a lot!
For example:
Quote:
Originally Posted by muaythaibangkok View Post
My son ran my 2003 525i without coolant. He then ran the car into the curb.

A "friend of a friend of a friend" who works part time as a mechanic for the local BMW dealership looked at the car.

His opinions:

- Blown cylinder head gasket -
- Possible warped cylinder head -
- Ruptured radiator overflow tank -
- Bent lower control arm -
- (Also, broken rear tail light assembly) -

He estimated the cost of private repair to be at least $3500 ... possibly much more.

He then offered to buy my car for $500.

Luckily, since you're neither the first, nor the last ... we put together the following paragraph to give you a head start on a solution:

- Summary advice to provide users who suspect a major engine repair due to overheating (1) (2) (3) (4) & how to test an engine for a blown head gasket, cracked heads, a warped block, stripped head bolt threads, cam seizures, contaminated bearings, coolant hydrolock, or piston, ring, or valve damage (1) (2) & what are the major factors in deciding whether to rebuild the engine, replace the engine, or sell the car (1) & a DIY for replacing the I6 M54 head gasket (1) (2) & replacing the V8 M62TU head gasket (1) & why these engines are so prone to heat-related damage in the first place (1) & welding the crack between cylinder #3 and the water jacket on the exhaust side (1) & what engine swaps are most recommended (1) (2) (3) & where to obtain a new or rebuilt head (1) replacement short block or long block (1) (2) & how to lift & remove the engine (1) & real-world results from people faced with similar blown engine problems from which this advice came from (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) (24) (25) (26) (27) (28) (29) (30) (31) (32) (33) (34) (35) (36) (37) (38) (39) (40) (41).

Quote:
Originally Posted by smolck View Post
I wouldn't ask for blunt honesty


Quote:
Originally Posted by floydarogers View Post
here's what you need to do
Nice summary.

I'm gonna add that to the bestlinks so that others more easily benefit from your advice.
Quote:
Originally Posted by jvr826 View Post
Contact Blackstone Labs
That's another nice piece of advice.
Again, so others find it more easily, I'll add that to the canonical thread on overheated engines.

Quote:
Originally Posted by SJBimmer View Post
They go to torque the new head bolts and they pull out like butter.
Indeed.

If you look at the 40 or so most recent ruined-engine threads referenced above, more than a few have this problem!

As you noted, timeserts 'sometimes' work:
- Helicoils (1) vs Timeserts (1) for stripped oilpan (1) & head gasket thread repair (1) & Metric/SAE bolt conversion factors (1)

Last edited by bluebee; 11-25-2011 at 12:20 PM.
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