Ok, the pinging isn't all gone. What gives?

[BennyM]

So I said that after 2 tanks of techron, the pinging had disappeared. And it did, for a week. Now it comes back intermittently, and usually more subtly. I think it's relative to outside temperature. It wasn't noticeable on Wed with 90 F, but was on Thurs with 40 F.

Anyway, how many consecutive tanks can I fill with techron?

And when I change my oil later this week, will that get rid of the crud that's causing the occasional ping? Also, I'm gonna try the 0W40 instead of the 15W50 this time.

Thanks.

BennyM

[632 Regal]

what octane fuel are you using?

[BennyM]

what octane fuel are you using?

[winfred]

id look for vacuum leaks and other things that can screw with the mixture, how bout plugs? i like BKR6EK NGK or F7LDCR bosch in a m42/50/52/60/62. one thing i've been doing lately is steam cleaning the motor, i get the motor up to full temp then find a vacuum nipple (the one for the fpr will do) and hook about a 1/8 vacuum line to it that is long enough to get into about a pint container, work the throttle with your hand or get a helper to rev it to around 2k rpm and let it start sucking water from the container, the motor will start to bog down give it more gas and or pull the tube out of the water (after you've done it a few times you learn how to ballence the throttle while feeding water) the car will fart out a cloud of steam and if it was real cruddy, oil smoke from all the crap it broke loose (these cars i do a 2nd time) then a italian tune up and it runs and idles like a champ (if there's nothing else wrong). i saw this procedure once using vental sauber (valve clean) from lubro moly, they wanted you to let the motor stall right at the end of the container to leave the valves wet and soaking for around 10 minutes then restart (with a ton of smoke)

disclaimer, if you get carried away and stupedity strikes it aint my fault i didn't perform the treatment

[ryan roopnarine]

i doubt that changing oil is going to get rid of ping. i think you have two choices now (as i've just finished the 44k, and can speak about it)

find a price for a FI cleaning at a place you like, keep cost in mind

weigh against

cost of two bottles of techron, plus, my suggestion, the 44k (which is about 15-19 by itself) or another 2 bottles of techron

the 44k had pwned the ping in my 90 degree temp car within 400 miles, something that the techron or ventil sauber alone had never been able to do. what ever you decide to do, i'd keep off the oil change until after you do it.

So I said that after 2 tanks of techron, the pinging had disappeared. And it did, for a week. Now it comes back intermittently, and usually more subtly. I think it's relative to outside temperature. It wasn't noticeable on Wed with 90 F, but was on Thurs with 40 F.

Anyway, how many consecutive tanks can I fill with techron?

And when I change my oil later this week, will that get rid of the crud that's causing the occasional ping? Also, I'm gonna try the 0W40 instead of the 15W50 this time.

Thanks.

BennyM

[Warren N.CA]

I am suggesting ITALIAN TUNEUPS whenever it starts. I did mine Sunday. Only took about less than a minute of sustained 5500 RPM on the Freeway. Now it's all better again. I think M30s are prone to picking up carbon deposits. Auto will be worst because less likelyhood you will wind high revs very often


QUOTE=BennyM]So I said that after 2 tanks of techron, the pinging had disappeared. And it did, for a week. Now it comes back intermittently, and usually more subtly. I think it's relative to outside temperature. It wasn't noticeable on Wed with 90 F, but was on Thurs with 40 F.

Anyway, how many consecutive tanks can I fill with techron?

And when I change my oil later this week, will that get rid of the crud that's causing the occasional ping? Also, I'm gonna try the 0W40 instead of the 15W50 this time.

Thanks.

BennyM[/QUOTE]

[BennyM]

i doubt that changing oil is going to get rid of ping. i think you have two choices now (as i've just finished the 44k, and can speak about it)

find a price for a FI cleaning at a place you like, keep cost in mind

weigh against

cost of two bottles of techron, plus, my suggestion, the 44k (which is about 15-19 by itself) or another 2 bottles of techron

the 44k had pwned the ping in my 90 degree temp car within 400 miles, something that the techron or ventil sauber alone had never been able to do. what ever you decide to do, i'd keep off the oil change until after you do it.

[BennyM]

If I get enough guts, I'll try it on my engine.

[ryan roopnarine]

you'd have to likely call car dealerships to find a source for it, as bg doesn't sell in autoparts stores.

i'd try chevy, then mercedes, then bmw, then cold call until you find it. i found it locally from the bmw dealership for 17.99 plus tax.

[BennyM]

BTW, I found an online store that was selling a $9 book on how to run your engine with 44K for best results. I assume it's the high RPMs as Warren mentioned, no?