Head gasket failure on 750iL

[tonyro]

I think my head gasket failed on 99 750il. Anyone have an idea on cost to repair. I was in the process of replacing water pump and thermostat. Obviously that has been put on hold. Anyone interested in a 1999 750il with 93,000 miles. Black on black and every option. Email me if you are interested or call me at 610-533-5049. Thanks. Tony

[TheLadiesMan]

Hmmm I may be interested. Gimme a few weeks to see what happens to my rear ended car.

[Alpine 7even]

Hmmmmm.....possibly! I don't have a v12 yet.

[TheLadiesMan]

Back off Darren, I called it first!
I already spoke with him. I'm planning on seeing it next week, if not the week after if my car is written off.

[tonyro]

I just put two new batteries in the car, a new radiator and heater hose. I have had the car for two months. I bought it off a friend and have yet to title it. I am $2500 into the car. If anyone wants it let me know. I will try to post pictures tomorrow. I don't want to part the car out. my email is 2300hickory@comcast.net and my phone is 610-533-5049. Thanks. Tony

[Alpine 7even]

Awwww!
Well enjoy if you buy it Sean! And good luck!

[M I C H A E L]

gl sean bring this puppy home

[noodlesandsam]

Not to rain on the vulture parade, but what makes you think the head gasket is blown? The m73 is pretty tough. What lead to this?

[lowrent1]

I will buy it now cash money pm me

I don't need to wait for any thing let no got cash

[Alpine 7even]

I will buy it now cash money pm me

I don't need to wait for any thing let no got cash

Get in line chief!

[tonyro]

I am going to do a little more research on what exactly is wrong. I assumed head gasket because of a loss of power and milky oil cap. However that could have been due to near empty gas and a lack of driving car for 3-4 weeks. I put gas in car and it ran better. The car idled too low at times and felt like it might stall. The check engine light began to flash right before this happened. The car did get to 110 degrees when i did the on board check and blew coolant everywhere (initially why I was replacing water pump because it was losing coolant out of the weep hole). Like I said, I am $2500 into car not including new water pump and thermostat that i bought today from VAC Motorsport ($400). The dilemma is do I put on the new parts before checking for head gasket failure or do I sell as is.

[board57796]

It can be DIY'd if you have the patience and time. Ask me how I know....

[WarMachine7]

I am going to do a little more research on what exactly is wrong. I assumed head gasket because of a loss of power and milky oil cap. However that could have been due to near empty gas and a lack of driving car for 3-4 weeks. I put gas in car and it ran better. The car idled too low at times and felt like it might stall. The check engine light began to flash right before this happened. The car did get to 110 degrees when i did the on board check and blew coolant everywhere (initially why I was replacing water pump because it was losing coolant out of the weep hole). Like I said, I am $2500 into car not including new water pump and thermostat that i bought today from VAC Motorsport ($400). The dilemma is do I put on the new parts before checking for head gasket failure or do I sell as is.

I would diy it and keep it, or at least fix it then sell, if you sell without fixing, prepare to get a very low number.

[M I C H A E L]

It can be DIY'd if you have the patience and time. Ask me how I know....

Yikes I don't even want to know how many hours that took to fix...

[noodlesandsam]

My 2000 750 leaked from the water pump weep hole at 130k. Original pump. Now at 155.5. I run at 105c at cruise, it drops to 99c under hard accel ( up hills, etc ), and goes as high as 110 - for short stretches in heavy traffic.

Also, I have the crank counter hold to remove the crank bolt.

[tonyro]

Is KTMP 110 too hot on this car? What is normal? What level would be cause for alarm? Thanks. Tony

[TheLadiesMan]

110 C is the max. But just becasue the temp is alright doesn't mean compression is sill getting in the coolant system.

[noodlesandsam]

110c is high, but this is still within the buffered range of the gauge on your cluster. Others say that 105-108 is normal. I don't like it when it gets to 110. My oil cap shows some moisture if it has been sitting, or town driving. Is there any goop at the end of the dipstick?

[das borgen]

anywhere between 108-111C is normal operation on the M62 and M62TU..thermostat is at 105C

I know nothing about the M73

[board57796]

Yikes I don't even want to know how many hours that took to fix...

Haha good! Because I can't even remember how many it took.

[tonyro]

no goop at end of dipstick.

[noodlesandsam]

No goop is good . How long can you run this with the water pump as is? I mean drive it. Idling in the driveway is not the same thing on these cars.

[tonyro]

I can go about 10 minutes before it starts spraying out weep hole. I shut the car down and it just dumps coolant. I have been filling it with coolant and water after I let it cool down. It doesnt take much to get the float to extend. I think it looks alot messier than it really is. I think I am going to go ahead and replace water pump and thermostat (since I already have parts) and hope for best. Unless anyone talks me out of it!

[noodlesandsam]

Dumps coolant from where? It sounds like you have a chance it is fundamentally ok.

[psjr]

I would go ahead and replace the water pump.
To check for a head gasket failure, check that the oil isn't milky and have the coolant checked for exhaust. If neither of those are the case, it is unlikely there is a head gasket issue.
It could be a valley pan, but it is very rare for those to go on the V12.