Head gasket go boom .....

blowin 4 · 12-16-2012, 11:26 PM

So friday i decided to go make videos with my new dash cam on the way home after making a few videos i jumped on the free way was going about 65 mph 4 gear punched it around 5000 rpm boom . 2 hrs later waiting for tow truck .Get home pulled the head piston 1 gasket ring cooper seal let go. as im removing the head bolt's i notice there coming off with little force. i figure its its because the gasket peace is missing i try the rear head its a little hard hummmm so i start checking the torque setting on all the bolts bar is braking at 40lbs on 1/2 piston and 50lbs 3/4 piston bolts ... wtf btw running 20 psi 14 degree time at wot with is not high at all .... mm say they torque the head to 22 lbs then 2 90 degree turns .... last time i did my old motor H.G that came out to give or take 80 lbs not 50 lbs ... the only thing i can come up with is someone forgot to add the last 90 degree final turn .... no big deal im just glad there's no serious damage to the motor !!!! i never really liked the thought that i spent 10 k on a motor that ran a stock head gasket time to order a cometic mls H.G yea i know mm says they had bad experience using them i ran one in my old set up in never blew a gasket !!!also need to get rid of my ebay wastegate be for that lets go and ends up blowing my motor ...ill post pix .

jca · 12-17-2012, 01:00 AM

Been there; done that, too.

**xxxJohnBoyxxx** · 12-18-2012, 09:45 PM

I just changed out my head gasket. #3 was leaking into the cooling system. I used the M47 BMW gasket which for for a diesel motor. I torqued my modified M3 head bolts to 63ftlb. I'm ready to go for another 25K and higher boost now too.

blowin 4 · 12-19-2012, 02:31 AM

Quote:

Originally Posted by xxxJohnBoyxxx

I just changed out my head gasket. #3 was leaking into the cooling system. I used the M47 BMW gasket which for for a diesel motor. I torqued my modified M3 head bolts to 63ftlb. I'm ready to go for another 25K and higher boost now too.

i tried to look into diesel gasket but i went with cometic i never had a problem when i ran it in my old motor and u know how bad that tune was ..

blowin 4 · 12-19-2012, 03:08 AM

Got my head back its not warped who hoo got all my victor reiz seals just waiting on my cometic h.g $ precision wastegate not taking anymore changes... btw the guys at top end performance really know there **** when it comes to turbo i 4 the say all there builds make 400 + hp easy with out a problem he also said that i was at risk of my block giving out to they never bore there cylinders over .5 stock 1.2 mm wont make any where close to as much as adding a pound off bost wish i knew about these guys few years plus they build strokers for way cheaper than mm.... top end performance .com check them out ....

blowin 4 · 12-19-2012, 03:27 AM

Quote:

Originally Posted by xxxJohnBoyxxx

I just changed out my head gasket. #3 was leaking into the cooling system. I used the M47 BMW gasket which for for a diesel motor. I torqued my modified M3 head bolts to 63ftlb. I'm ready to go for another 25K and higher boost now too.

so how did you get a diesel gasket to work cut of the extra part of the gasket on the front change guard what ever that is looks like it will work fine. better off going with a cometic...

blowin 4 · 12-19-2012, 05:46 AM

have more pic after xmas with a new dyno sheet.

blowin 4 · 12-19-2012, 05:48 AM

**xxxJohnBoyxxx** · 12-19-2012, 03:04 PM

I'm impressed with your head gasket picture. I have never seen a gasket that badly damaged. Piston tops look lean unless you cleaned them before the picture. The gasket looks like the head floated up and it blew out the gasket with a pop. Good luck with the MLS gasket. I'm going for 25psi but can't get the standalone to fire up

blowin 4 · 12-19-2012, 06:23 PM

yeah i never seen that either im almost positive the head lifted it was only torqued 40 lbs 2 front cylinders and 50 in rear cylinders i never had a problem with cometic in my last motor in i removed the head 6 times as long as you have smooth AR youll be fine horse power freaks dont o ring there blocks they use cometic and there cars run 10000+ rwhp . sorry to tell you john but yr gaskets going to give if you push more than 20 psi even tho its diesel the compression of the turbo is why higher than 16.1 . btw i cleaned the pistons..

bimmerboy98 · 12-19-2012, 07:21 PM

I just bought a 98 318ti knowing it needed a head gasket, i want to buy a cometic mls gasket has anyone used these for bmw, ive been told that they are really touchy with what gaskets you use but i feel like thats just BMW trying to get me to buy their stuff.

blowin 4 · 12-19-2012, 09:35 PM

Quote:

Originally Posted by bimmerboy98

I just bought a 98 318ti knowing it needed a head gasket, i want to buy a cometic mls gasket has anyone used these for bmw, ive been told that they are really touchy with what gaskets you use but i feel like thats just BMW trying to get me to buy their stuff.

Do you plan on boosting it ? if not factory will do fine sounds like the car over heated & warped the head i got a used cometic with 2000 miles if your interested i would use it but my motor was bored so i cant use it.

bimmerboy98 · 12-19-2012, 10:14 PM

that would work, I will be boosting it, I already bought the cometic mls

blowin 4 · 12-19-2012, 10:17 PM

Quote:

Originally Posted by bimmerboy98

that would work, I will be boosting it, I already bought the cometic mls

where did you buy it ? i ordered mine from top end performance cost me 213.00 i have to wait 3-4 days to be made ... vac told me 3-4 weeks.

bimmerboy98 · 12-19-2012, 11:56 PM

cometic.com, cost $160 ships friday

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