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| UNBELIEVABLE problems with GTR again http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=10933 |
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| Author: | kdog123 [ Thu Jul 15, 2010 8:21 pm ] |
| Post subject: | UNBELIEVABLE problems with GTR again |
I just got my motor back fom having heads pulled to check for muffler slag.(spark plug gap kept closing) Well i put my new marsh mellow on and cranked her up.Sounded great.I then put her in the water and tried to take off and my motor will not exceed 2000rpm's. Seems to be same symptoms but my spark plugs are not smashing.I am getting fire to both plugs,but if i pull the right wire while running she keeps ticking.If i pull the left wire while running she kills.I do notice that in nuetral my rpm's are only 3900 reved all the way.Maybe i lost a few hundred do to new muffler,but i cannot get up and run.PLEASE ANYONE HELP ME.(Its almost as if i lost a cylinder) |
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| Author: | SmokeEater829 [ Thu Jul 15, 2010 8:43 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
Sounds like a bad coil, but I'm no motor guru! Someone will chime in. |
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| Author: | Mitschke [ Thu Jul 15, 2010 8:57 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
When you say left wire.... Are you in the boat looking at the fly wheel? Or are you behind the motor looking at the muffler? The only reason i ask is... It seems as if my left coil (If you looking at the flywheel) is intermittent and works when it wants to. If i pull the left wire the motor keeps running but doesnt run that rough. If i pull the right wire, it just dies. |
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| Author: | POKER1 [ Thu Jul 15, 2010 9:03 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
| Author: | kdog123 [ Thu Jul 15, 2010 9:07 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
Im in the boat looking from front. I also moved tach to other spark plug wire and have the same wfo rpms.This was the first time i ran boat in a month on same fuel.What do yall think. |
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| Author: | craig [ Thu Jul 15, 2010 9:23 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
Sounds like a bad coil on cylinder #2. |
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| Author: | DeathMetalDukk [ Thu Jul 15, 2010 9:44 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
| Author: | Matt [ Thu Jul 15, 2010 10:20 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
Check and make sure the pushrods on that cylinder are still in the rockers, being that head was removed. |
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| Author: | bayouboy [ Thu Jul 15, 2010 10:44 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
How does the motor sound? Is it running rough, does it hesitate and want to die when your increasing the throttle? Or does it run fine until you hit 2000 rpms. It might be as simple as a dirty carb needle or idle jet. or even a bad diode. |
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| Author: | Wilson [ Fri Jul 16, 2010 12:10 am ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
Sounds like a bad diode to me. I've had it happen twice. It's easy to fry it. |
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| Author: | bbb [ Fri Jul 16, 2010 5:59 am ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
| Author: | basinlover [ Fri Jul 16, 2010 9:27 am ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
Sounds like a bad diode to me unplug them and run the motor it doesn't need them to run its just to kill the engine by grounding out the fire when you ground the switch if one is bad it will kill that side during that rotation of the flywheel by bleeding through the other diode. |
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| Author: | stumpgrinder [ Fri Jul 16, 2010 10:13 am ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
Pull ur valve cover. It ain't coil or diode related if ur tach worked on that plug wire. |
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| Author: | kdog123 [ Fri Jul 16, 2010 5:00 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
when i pull valve cover.What am i looking for? |
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| Author: | craig [ Fri Jul 16, 2010 6:40 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
| Author: | kdog123 [ Sat Jul 17, 2010 7:31 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
Thanks CRAIG thats exactly what it was.A push rod out of rocker .Reset and set valves.THANKS a bunch. |
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| Author: | stumpgrinder [ Sun Jul 18, 2010 10:24 am ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
You're welcome. Lol |
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| Author: | kdog123 [ Sun Jul 18, 2010 2:05 pm ] |
| Post subject: | Re: UNBELIEVABLE problems with GTR again |
MUD SLINGER thanks to you first, and to everyone with helpful input! |
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