Page 3 of 4

Re: Brief Power Loss at Full Speed

Posted: Sat Jun 19, 2021 8:03 pm
by Big Block Power
Well they will Prob put a heli coil in it and you will be back in action.

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 9:29 am
by cjohnson66
Big Block Power wrote: Sat Jun 19, 2021 8:03 pm Well they will Prob put a heli coil in it and you will be back in action.
Hopefully that's all it will need. The plug was pretty much disintegrated. Hope none of it went into the cylinder. That might mean bigger problems.

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 11:18 am
by rabiddawg
That sounds like my luck.

Plugs n wires made little to no difference in mine last weekend.

Buddy of mine has hooked me up with an ignition shop that primarily serves the oil field. He has a test rig that can simulate the load on a coil. I’m going to take mine by there Monday

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 12:49 pm
by cjohnson66
Big Block Power wrote: Sat Jun 19, 2021 8:03 pm Well they will Prob put a heli coil in it and you will be back in action.
The plug actually remained in the engine. The inside of the plug blew out.

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 12:52 pm
by cjohnson66
cjohnson66 wrote: Sun Jun 20, 2021 12:49 pm
Big Block Power wrote: Sat Jun 19, 2021 8:03 pm Well they will Prob put a heli coil in it and you will be back in action.
The plug actually remained in the engine. The inside of the plug blew out.

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 12:55 pm
by Big Block Power
That's not pretty looking at all.

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 4:16 pm
by AsLan7
cjohnson66 wrote: Sun Jun 20, 2021 12:52 pm
cjohnson66 wrote: Sun Jun 20, 2021 12:49 pm
Big Block Power wrote: Sat Jun 19, 2021 8:03 pm Well they will Prob put a heli coil in it and you will be back in action.
The plug actually remained in the engine. The inside of the plug blew out.
.
Good Lord. And I thought I held the bad spark plug award since 2019. I’ll happily pass the torch on.

.

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 5:54 pm
by cjohnson66
Haha! Don't really want the torch but will take it. I'm getting it off the lake this week. Crossing fingers that no damage has occurred in the cylinder. Could be a big job to repair if that's the case. I still don't get why the plug blew out that way. The only thing I can think of is that the plug was cross threaded and not seated properly. I had just installed a new coil on that plug.

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 7:45 pm
by jhnmdahl
cjohnson66 wrote: Sun Jun 20, 2021 12:49 pm
Big Block Power wrote: Sat Jun 19, 2021 8:03 pm Well they will Prob put a heli coil in it and you will be back in action.
The plug actually remained in the engine. The inside of the plug blew out.
Hopefully that bodes well for a bad plug rather than messed up threads in the block. Would be nice if a new plug solves your issues.

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 8:06 pm
by AsLan7
jhnmdahl wrote: Sun Jun 20, 2021 7:45 pm
cjohnson66 wrote: Sun Jun 20, 2021 12:49 pm
Big Block Power wrote: Sat Jun 19, 2021 8:03 pm Well they will Prob put a heli coil in it and you will be back in action.
The plug actually remained in the engine. The inside of the plug blew out.
Hopefully that bodes well for a bad plug rather than messed up threads in the block. Would be nice if a new plug solves your issues.
.
I agree. Looks more like a plug failure than bad threads. Curious the compression in that cylinder...like 50:1 :lol:

Re: Brief Power Loss at Full Speed

Posted: Sun Jun 20, 2021 8:27 pm
by cjohnson66
I'm surprised it didn't got through straight through the hull and into the lake :-) -- It was a pretty nasty sound when it blew out.

Re: Brief Power Loss at Full Speed

Posted: Mon Jun 21, 2021 10:17 am
by jhnmdahl
AsLan7 wrote: Sun Jun 20, 2021 8:06 pm I agree. Looks more like a plug failure than bad threads. Curious the compression in that cylinder...like 50:1 :lol:
Well, there’s another option I hadn’t considered. Put in some glow plugs and swap out the injectors and build a torque monster :)

Re: Brief Power Loss at Full Speed

Posted: Mon Jun 21, 2021 10:39 am
by cjohnson66
I think we're on to something here. We should put some engineering plans together!

Re: Brief Power Loss at Full Speed

Posted: Mon Jun 21, 2021 12:21 pm
by rabiddawg
I’m betting when you installed that plug your tool was at an angle and cracked the plug. I’ve had it happen in the past. For me the end always fell off right then.

I’d put another plug in it if the threads are good.

Re: Brief Power Loss at Full Speed

Posted: Mon Jun 21, 2021 12:28 pm
by cjohnson66
You're probably right -- I need to have look inside the cylinder. Not sure if any metal or ceramic substance went in. I'm going to drop it a my marina and have them take a look just to be sure.