Gtx ECU?

[Fritz360]

ok, I'll keep in touch. Thank for the consideration.

[ScOrTGtC]

im currently running with a GTX ecu 3 wire tps and no knock sensor.. car runs fine as for gas milieage...its ok i guess.....

[Fritz360]

If the gtx engine is a non-interference motor, how would it be possible for me to smash my #1 spark plug? My timing belt jumped. I've reset my everything to TDC and my motor turns over, but it doesn't start. I don't know what else to do. One of my friends it tell me that I have bent vavles. But he hasn't physicaly looked at my motor yet.

im currently running with a GTX ecu 3 wire tps and no knock sensor.. car runs fine as for gas milieage...its ok i guess.....

[Lex]

it sounds like you detonated. The force of the explosion blew up the spark plug

[ScOrTGtC]

sounds like that to me too.. but when you said smashed do you mean that your piston literrally hit the sparkplug??.. als did you check if you have fuel and spark?..

[Fritz360]

It looks like the piston hit the spark plug. Thats the only way the spark plug can get like that right? I didin't know that detonating could do that also. I'll try to get a picture of the spark plug. I'm a wits end right know. I getting plenty of fuel, because its all over the spark plugs, when I pull one out. I also plug a plug and put it into the spark plug wire sat it on the vavle cover and watched it spark. I don't know what else to do. What should be my next step?

sounds like that to me too.. but when you said smashed do you mean that your piston literrally hit the sparkplug??.. als did you check if you have fuel and spark?..

[Lex]

check compression

[Shades]

I don't see how the piston can hit the spark plug... it's a dome shaped pocket on the head, and the spark plug sits right at the top of the dome... it would have to break the con rod or pin and float all the way up to the top of the dome squishing the valves.

I'm gonna go with bad detonation.

Like Lex says, do a compression test and get back to us.

[Fritz360]

If the timing is off, does that have anything to do with compression? I just did a compression check and this is what I got.

#1-120 and had a smashed spark plug
#2-60
#3-30
#4-100

Could that also be a blown headgasket?

I don't see how the piston can hit the spark plug... it's a dome shaped pocket on the head, and the spark plug sits right at the top of the dome... it would have to break the con rod or pin and float all the way up to the top of the dome squishing the valves.

I'm gonna go with bad detonation.

Like Lex says, do a compression test and get back to us.

[Shades]

By the looks of your compression test, you have a blow head gasket inbetween cylinders 2 and 3... those are really low.

Rule of thumb for compression test... your numbers should not be lower than 10% less of the highest number.

I'm sure someone else here can back me up on his blown headgasket.

[wht95scort]

Well if he has his timing way off still you could show bad on a comp test. Most likely it is a bad gasket.

[Shades]

Ok, if your timing is off... setup it up right and do the compression test again. If you get low on 2 and 3 again, you've blown a head gasket between the cylinders.

[Fritz360]

What is a leak down test, and how do I do one?

Ok, if your timing is off... setup it up right and do the compression test again. If you get low on 2 and 3 again, you've blown a head gasket between the cylinders.

[D323]

http://www.type2.com/library/engineg/leaktst.htm

and how to build our own:

http://www.xs11.com/tips/misc/misc3.shtml

[Fritz360]

If the problem is a head gasket, I have an extra one to replace it. But does that mean that its not bent vavles? Do I also have to re-surface the head? I've got an extra BP NA head, can I use that on the BP26?