LT1 no start

John Nechiporchik · 10-26-2014, 10:43 PM

Testing today at Milan...After second pass, clicked motor off after finish line. When I went to start it on return road, would not start.
Did a quick test before loading it up. Has spark at coil wire but no spark at plugs.
Checked ECU fuse....was OK. Several threads on here discuss rotor "slinging blades". Should the cap/rotor be my next step in the investigation process or are there any other possible causes.
I replaced the cap/rotor earlier this year and it is a pain in the a-- to change. Any ideas appreciated.
Thanks,
John

Dyno · 10-26-2014, 10:50 PM

I broke 3 rotors before I started to pin them. They would always break on shutdown.

Ed Wright · 10-27-2014, 07:21 AM

What happens is, the two small plastic pegs that the two pieces of the metal blade on the rotor in place break. If your lucky, that is all that tore up. May need a new cap also.
I drilled the two small plastic pegs holding them on a stock rotor with a 1/8" drill, ant put them back on with two long 1/8" pop rivets. Made several 8000+ RPM passes that way with zero problems.

Since then, MSD came out with a cap and rotor. They use two brass screws to hold it together. Might check into that. Pretty red parts.

John Nechiporchik · 10-27-2014, 10:09 AM

Thanks Dyno and Ed.

Ed Wright · 10-28-2014, 12:33 PM

Dyno posted his while I was trying to type mine.
Sorry.

John Nechiporchik · 10-28-2014, 01:39 PM

No problem, Ed. Thanks for responding.
I will likely get it apart tomorrow, so I'll let you guys know what I find.
For info, is the correct MSD part number 84811 for the cap and rotor kit for the 98 LT1 ?
John

10-26-2014, 10:43 PM	#1
John Nechiporchik Member Join Date: Mar 2007 Location: Grosse Ile Mi. Posts: 315 Likes: 74 Liked 12 Times in 6 Posts	LT1 no start Testing today at Milan...After second pass, clicked motor off after finish line. When I went to start it on return road, would not start. Did a quick test before loading it up. Has spark at coil wire but no spark at plugs. Checked ECU fuse....was OK. Several threads on here discuss rotor "slinging blades". Should the cap/rotor be my next step in the investigation process or are there any other possible causes. I replaced the cap/rotor earlier this year and it is a pain in the a-- to change. Any ideas appreciated. Thanks, John

10-26-2014, 10:50 PM	#2
Dyno Senior Member Join Date: Dec 2002 Posts: 870 Likes: 920 Liked 605 Times in 177 Posts	Re: LT1 no start I broke 3 rotors before I started to pin them. They would always break on shutdown.

10-27-2014, 07:21 AM	#3
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: LT1 no start What happens is, the two small plastic pegs that the two pieces of the metal blade on the rotor in place break. If your lucky, that is all that tore up. May need a new cap also. I drilled the two small plastic pegs holding them on a stock rotor with a 1/8" drill, ant put them back on with two long 1/8" pop rivets. Made several 8000+ RPM passes that way with zero problems. Since then, MSD came out with a cap and rotor. They use two brass screws to hold it together. Might check into that. Pretty red parts. __________________ Ed Wright 4156 SS/JA

10-27-2014, 10:09 AM	#4
John Nechiporchik Member Join Date: Mar 2007 Location: Grosse Ile Mi. Posts: 315 Likes: 74 Liked 12 Times in 6 Posts	Re: LT1 no start Thanks Dyno and Ed.

10-28-2014, 12:33 PM	#5
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: LT1 no start Dyno posted his while I was trying to type mine. Sorry. __________________ Ed Wright 4156 SS/JA

10-28-2014, 01:39 PM	#6
John Nechiporchik Member Join Date: Mar 2007 Location: Grosse Ile Mi. Posts: 315 Likes: 74 Liked 12 Times in 6 Posts	Re: LT1 no start No problem, Ed. Thanks for responding. I will likely get it apart tomorrow, so I'll let you guys know what I find. For info, is the correct MSD part number 84811 for the cap and rotor kit for the 98 LT1 ? John