Motor fvcked up. - Lightning Forum

nitrous2fast · 07-31-2010, 01:52 AM

Well my motor decided to mess up today

running down the highway. I think that I either have a burnt valve or a messed up piston ring. So I am now going to be installing a MP2 Mod-900 SB in a few weeks after get everything sorted out with my stock block.

I checked my plugs and it looks like I was running rich but none were flattened or any other mal-looking appearance. Sunday I will be doing a compression test to determine which piston's rings and/or valves are messed up. Wish me luck

stoffer · 07-31-2010, 09:04 AM

while going built is never a bad thing, are you sure you hurt the motor???

nitrous2fast · 07-31-2010, 12:13 PM

Won't be fully sure until I get the motor apart. If it only fails a compression test on one side then I'll just pull that head to see what has happen to that head/piston.

CNY03HD · 07-31-2010, 12:15 PM

Good luck, hope everything works out

nitrous2fast · 07-31-2010, 01:25 PM

Quote:

Originally Posted by CNY03HD

Good luck, hope everything works out

Thanks.

stoffer · 07-31-2010, 01:32 PM

are you running a larger than stock MAF???

nitrous2fast · 07-31-2010, 02:36 PM

Quote:

Originally Posted by stoffer

are you running a larger than stock MAF???

No, I think that I might have pegged the meter?! My MAF volts were fine before i had the blower ported more. I should have datalogged it but hey what ya gonna do? anyways I have a MAFi.a. but I didn't install it so

go ahead.

I was running her kind-of rich because of the timing I had in it, so a pegged meter is looking more and more likely a cause. The thing that gets me is that she just started to not pull anymore, I drove it to the shop carefully. It idles and has good fuel pressure. The cats were only at 530F so that ruled out a clogged cat?

Bgstew6 · 07-31-2010, 02:45 PM

if youre lucky you toasted a plug or two

stoffer · 07-31-2010, 02:52 PM

that's exactly what I was thinking...

nitrous2fast · 07-31-2010, 03:28 PM

I already checked them they look fine except for a little carbon buildup.

nitrous2fast · 07-31-2010, 03:29 PM

heck I've got a set of BR7s that I could throw in.

Bgstew6 · 07-31-2010, 07:43 PM

Coil Pack could be on its way out also....

nitrous2fast · 07-31-2010, 08:06 PM

Quote:

Originally Posted by Bgstew6

Coil Pack could be on its way out also....

I was thinking maybe that but Ive done a plug change before and left a coil unplugged and it didn't run the way that it is now so I'm leaning away from that?

Bgstew6 · 07-31-2010, 08:10 PM

typically when they start to go out.....they show it in the upper RPM range and after they get hot.

You can sit there at idle and rev the motor and it wont miss but go out and drive her and when you put it under some heavy load it will start to miss

nitrous2fast · 08-01-2010, 12:03 AM

Its not a miss, it seams like something is running against the motor. I checked my oil level and its extremely low. I think that when I got on it hard it, the oil pressure dropped enough to let the timing chain jump. Don't know yet but tomorrow I will check valve timing and do the comp test and check everything else I can. Oh If I put in gear and hold the brake and give it a little throttle it starts to smoke out of the exhaust, so that leads me to think messed up piston again? But wondering why its not smoking out of the pcv though if I did mess up a ring or crack a ringland?

07-31-2010, 01:52 AM	#1
nitrous2fast Senior Member Join Date: Aug 2009 Location: arkansas Posts: 607 Rep Power: 9635978	Motor fvcked up. Well my motor decided to mess up today running down the highway. I think that I either have a burnt valve or a messed up piston ring. So I am now going to be installing a MP2 Mod-900 SB in a few weeks after get everything sorted out with my stock block. I checked my plugs and it looks like I was running rich but none were flattened or any other mal-looking appearance. Sunday I will be doing a compression test to determine which piston's rings and/or valves are messed up. Wish me luck __________________ ____________ MP2 Performance ported Eaton; MP2 Performance ported TB and Plenum; of course ZEX nitrous kit Metco Idler Relo; 8# lower one piece -02 HD -97 Trans Am WS6- Nitrous, long tubes, 3" Borla exhaust, 3.73 Motive gears, cust. tuned, Street Fire ignition -07 R1-Lowered, exhaust -97 Accord- happily my DD

07-31-2010, 09:04 AM	#2
stoffer I need a lightning Join Date: Nov 2007 Location: Germany by way of Texas Posts: 49,455 Rep Power: 71584471	while going built is never a bad thing, are you sure you hurt the motor??? __________________ parts for sale with pics (updated on 23 June 2010) http://www.lightningrodder.com/forum...201#post635201 sig thanks to Watson91 @ http://screen-fx.net/forum/index.php - '03 Harley Davidson Edition - shows in stock class - worlds first snake bit Harley Truck - '01 Lariat -F-150 supercab - procharged @15#, full Lightning suspension, and much more coming - Eddie Bauer Expedition - wife says "no boost" and claims she's serious

07-31-2010, 12:13 PM	#3
nitrous2fast Senior Member Join Date: Aug 2009 Location: arkansas Posts: 607 Rep Power: 9635978	Won't be fully sure until I get the motor apart. If it only fails a compression test on one side then I'll just pull that head to see what has happen to that head/piston. __________________ ____________ MP2 Performance ported Eaton; MP2 Performance ported TB and Plenum; of course ZEX nitrous kit Metco Idler Relo; 8# lower one piece -02 HD -97 Trans Am WS6- Nitrous, long tubes, 3" Borla exhaust, 3.73 Motive gears, cust. tuned, Street Fire ignition -07 R1-Lowered, exhaust -97 Accord- happily my DD

07-31-2010, 01:32 PM	#6
stoffer I need a lightning Join Date: Nov 2007 Location: Germany by way of Texas Posts: 49,455 Rep Power: 71584471	are you running a larger than stock MAF??? __________________ parts for sale with pics (updated on 23 June 2010) http://www.lightningrodder.com/forum...201#post635201 sig thanks to Watson91 @ http://screen-fx.net/forum/index.php - '03 Harley Davidson Edition - shows in stock class - worlds first snake bit Harley Truck - '01 Lariat -F-150 supercab - procharged @15#, full Lightning suspension, and much more coming - Eddie Bauer Expedition - wife says "no boost" and claims she's serious

07-31-2010, 02:45 PM	#8
Bgstew6 Blown Twice.... Join Date: Dec 2004 Location: Charleston, SC Posts: 15,988 Rep Power: 70202657	if youre lucky you toasted a plug or two __________________ 2k2 Black Harley Davidson SCrew, #1088 21lbs of Pure, Cogged, Magnum Power's Screamin Hell! "If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle." - Sun Tzu My Gallery How come these injuns ain't killin us??? Cause they can't see us, we're in the spirit world asshole!!!

07-31-2010, 12:15 PM	#4
CNY03HD Senior Member Join Date: Aug 2008 Location: Just north of Syracuse NY Posts: 1,028 Rep Power: 15486221	Good luck, hope everything works out

07-31-2010, 02:52 PM	#9
stoffer I need a lightning Join Date: Nov 2007 Location: Germany by way of Texas Posts: 49,455 Rep Power: 71584471	that's exactly what I was thinking... __________________ parts for sale with pics (updated on 23 June 2010) http://www.lightningrodder.com/forum...201#post635201 sig thanks to Watson91 @ http://screen-fx.net/forum/index.php - '03 Harley Davidson Edition - shows in stock class - worlds first snake bit Harley Truck - '01 Lariat -F-150 supercab - procharged @15#, full Lightning suspension, and much more coming - Eddie Bauer Expedition - wife says "no boost" and claims she's serious

07-31-2010, 03:28 PM	#10
nitrous2fast Senior Member Join Date: Aug 2009 Location: arkansas Posts: 607 Rep Power: 9635978	I already checked them they look fine except for a little carbon buildup. __________________ ____________ MP2 Performance ported Eaton; MP2 Performance ported TB and Plenum; of course ZEX nitrous kit Metco Idler Relo; 8# lower one piece -02 HD -97 Trans Am WS6- Nitrous, long tubes, 3" Borla exhaust, 3.73 Motive gears, cust. tuned, Street Fire ignition -07 R1-Lowered, exhaust -97 Accord- happily my DD

07-31-2010, 03:29 PM	#11
nitrous2fast Senior Member Join Date: Aug 2009 Location: arkansas Posts: 607 Rep Power: 9635978	heck I've got a set of BR7s that I could throw in. __________________ ____________ MP2 Performance ported Eaton; MP2 Performance ported TB and Plenum; of course ZEX nitrous kit Metco Idler Relo; 8# lower one piece -02 HD -97 Trans Am WS6- Nitrous, long tubes, 3" Borla exhaust, 3.73 Motive gears, cust. tuned, Street Fire ignition -07 R1-Lowered, exhaust -97 Accord- happily my DD

07-31-2010, 07:43 PM	#12
Bgstew6 Blown Twice.... Join Date: Dec 2004 Location: Charleston, SC Posts: 15,988 Rep Power: 70202657	Coil Pack could be on its way out also.... __________________ 2k2 Black Harley Davidson SCrew, #1088 21lbs of Pure, Cogged, Magnum Power's Screamin Hell! "If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle." - Sun Tzu My Gallery How come these injuns ain't killin us??? Cause they can't see us, we're in the spirit world asshole!!!

07-31-2010, 08:10 PM	#14
Bgstew6 Blown Twice.... Join Date: Dec 2004 Location: Charleston, SC Posts: 15,988 Rep Power: 70202657	typically when they start to go out.....they show it in the upper RPM range and after they get hot. You can sit there at idle and rev the motor and it wont miss but go out and drive her and when you put it under some heavy load it will start to miss __________________ 2k2 Black Harley Davidson SCrew, #1088 21lbs of Pure, Cogged, Magnum Power's Screamin Hell! "If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle." - Sun Tzu My Gallery How come these injuns ain't killin us??? Cause they can't see us, we're in the spirit world asshole!!!

08-01-2010, 12:03 AM	#15
nitrous2fast Senior Member Join Date: Aug 2009 Location: arkansas Posts: 607 Rep Power: 9635978	Its not a miss, it seams like something is running against the motor. I checked my oil level and its extremely low. I think that when I got on it hard it, the oil pressure dropped enough to let the timing chain jump. Don't know yet but tomorrow I will check valve timing and do the comp test and check everything else I can. Oh If I put in gear and hold the brake and give it a little throttle it starts to smoke out of the exhaust, so that leads me to think messed up piston again? But wondering why its not smoking out of the pcv though if I did mess up a ring or crack a ringland? __________________ ____________ MP2 Performance ported Eaton; MP2 Performance ported TB and Plenum; of course ZEX nitrous kit Metco Idler Relo; 8# lower one piece -02 HD -97 Trans Am WS6- Nitrous, long tubes, 3" Borla exhaust, 3.73 Motive gears, cust. tuned, Street Fire ignition -07 R1-Lowered, exhaust -97 Accord- happily my DD

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