LT1 issue

John Nechiporchik · 07-11-2014, 06:10 PM

Rob,A minor waterfall came out after the dist cap fasteners were loosened. The area where the rotor and cap appeared OK. The water was behind the white plastic shield. The metal shield was rusty.
Incidentally, The unit still contained the cam timing disc and module. Is this still necessary with the crank trigger or can I take them out?
Also, I could not find a socket to remove the bottom two (recessed) fasteners on the cap.I had to modify a small pair of channel locks to remove them. What size star or metric is that??

Also, filled the Connector receptacle with silicone as discussed earlier.

Thanks,
John

John Nechiporchik · 07-13-2014, 09:54 AM

OK....The Optispark cap bolts are E4 Torx. Not a socket found in regular tool or auto parts stores. Apparently Snap On and Matco carry them.
However, on another forum A guy posted that the throttle body cover screws are the correct size torx. As I had a spare throttle body, I removed one of the screws, chucked it up in a vice grips and got a tool (however crude) that works.

Rob Petrie E395 · 07-13-2014, 10:18 AM

That is basically what MSD sends you with a new cap and rotor or complete Optispark. Its just a screw with a thick nut on it. As far as taking the stuff out of the inside (wheel and sensor). I have always left mine in with no problems. Glad you found the problem and are back on track.

John Nechiporchik · 07-13-2014, 10:36 AM

Thanks Rob.

07-11-2014, 06:10 PM	#1
John Nechiporchik Member Join Date: Mar 2007 Location: Grosse Ile Mi. Posts: 316 Likes: 84 Liked 13 Times in 7 Posts	Re: LT1 issue Rob,A minor waterfall came out after the dist cap fasteners were loosened. The area where the rotor and cap appeared OK. The water was behind the white plastic shield. The metal shield was rusty. Incidentally, The unit still contained the cam timing disc and module. Is this still necessary with the crank trigger or can I take them out? Also, I could not find a socket to remove the bottom two (recessed) fasteners on the cap.I had to modify a small pair of channel locks to remove them. What size star or metric is that?? Also, filled the Connector receptacle with silicone as discussed earlier. Thanks, John

07-13-2014, 09:54 AM	#2
John Nechiporchik Member Join Date: Mar 2007 Location: Grosse Ile Mi. Posts: 316 Likes: 84 Liked 13 Times in 7 Posts	Re: LT1 issue OK....The Optispark cap bolts are E4 Torx. Not a socket found in regular tool or auto parts stores. Apparently Snap On and Matco carry them. However, on another forum A guy posted that the throttle body cover screws are the correct size torx. As I had a spare throttle body, I removed one of the screws, chucked it up in a vice grips and got a tool (however crude) that works.

07-13-2014, 10:18 AM	#3
Rob Petrie E395 VIP Member Join Date: Dec 2007 Location: Woodlawn IL Posts: 1,092 Likes: 162 Liked 216 Times in 77 Posts	Re: LT1 issue That is basically what MSD sends you with a new cap and rotor or complete Optispark. Its just a screw with a thick nut on it. As far as taking the stuff out of the inside (wheel and sensor). I have always left mine in with no problems. Glad you found the problem and are back on track.

07-13-2014, 10:36 AM	#4
John Nechiporchik Member Join Date: Mar 2007 Location: Grosse Ile Mi. Posts: 316 Likes: 84 Liked 13 Times in 7 Posts	Re: LT1 issue Thanks Rob.