Jump to content

Ignition issues....

3 posts / 343 viewsLast Reply

Recommended Posts

Well, im at a loss here. I've been trying to figure out what's going on. First off here's what I'm running:

70 02

Petronix -------------------------)

Bosch Red Coil w/ resistor ----) previous owner installed

weber 40 dcoe -----------------) (est. 5+years)


will run great off the bat but when I reach operating temp or after a 10-15 miles the engine would buckle and just die. It starts again but will not idle but if I wait till the engine cools down a bit then I'm back to normal.

I'm I right to assume that my coil is going bad? I tested the coil and I'm getting a reading of 1.4 ohms, this is when it's cold and also 1.4 ohms on the resistor.

Should I just ditch the red and order the blue coil and bypass the resistor/ballast. I'm aslo suspecting the plug wires since they are old but will it not run right off the bat if they were bad? I also tested then and the values are pretty close.

any ideas? thanks

Share this post

Link to post
Share on other sites

I would ditch the pertronix first before the coil. Try points again. Properly set points are not subject to seemingly random failures like pertronix and it's ilk.

Share this post

Link to post
Share on other sites

I'm not sure why Pertronix would be affected by engine warming up. Try pulling a plug wire when engine is warm and see if you get a good spark. How old are the plug wires? 10 or 15 minutes running doesn't sound like fuel pump, but I have heard of the tank pick-up filter becoming clogged with floating grunge, and releasing said grunge when engine is turned off.

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.