Slant Six Forum
https://slantsix.org/forum/

Not sure about if pick-up coil is good!
https://slantsix.org/forum/viewtopic.php?t=58915		 Page 1 of 1
Author:  74A1Swinger [ Mon Jan 04, 2016 9:36 am ]
Post subject:  Not sure about if pick-up coil is good!
I was wondering if the pick-up coil on my remanufactured distributor is good or not.

I've tested 3 new pick-ups now and they all have tested below the specs. in the 74 FSM.

Have the specs changed or are they just cheap junk? :?
Author:  ProCycle [ Mon Jan 04, 2016 10:12 am ]
Post subject: 
This is a common confusion for folks in the motorcycle business. Aftermarket pickup coils don't necessarily have the exact same resistance specs as the factory units. It doesn't necessarily indicate a problem. The resistance spec in the FSM is intended to be used as a diagnostic for evaluating the factory coil. If it measures out of spec some internal damage is indicated. An aftermarket coil with a different resistance can function perfectly but would have a different resistance spec to use for diagnosing a coil failure.
Author:  Joshie225 [ Mon Jan 04, 2016 10:32 am ]
Post subject: 
So long as they aren't shorted or open they generally work fine. What resistance did you measure?
Author:  74A1Swinger [ Mon Jan 04, 2016 10:34 am ]
Post subject: 
Thanks for the response Procycle and nice turbo by the way. :)

So, do you think they are as good quality wise if they have lower resistance than factory?

I guess I'm going to have to check with the manf. on their specs.
Author:  74A1Swinger [ Mon Jan 04, 2016 10:46 am ]
Post subject: 
Quote:
So long as they aren't shorted or open they generally work fine. What resistance did you measure?
Well, I was getting 329, 297, 331, and 289. Oh, and the other thing I noticed was that 3 of them had what looked like a mangled metal pick-up bar (the tiny bar in the center of the pick-up). And these 3 were brand new individual items (I thought about just getting a new one for the remanf. distributor, which was the first reading above).
Author:  ProCycle [ Mon Jan 04, 2016 10:58 am ]
Post subject: 
Quote:
So, do you think they are as good quality wise if they have lower resistance than factory?
I can't speak to the quality. Maybe good maybe not but the measured resistance doesn't tell you one way or the other. A lower resistance could mean it makes a stronger signal. The fact that all 4 measured within 15% of each other seems OK to me. I personally wouldn't worry about it unless there was an actual ignition problem.
Author:  74A1Swinger [ Mon Jan 04, 2016 12:31 pm ]
Post subject: 
Unfortunately that is how I got onto this track. I do have an intermittent spark problem (missing at times and varies in quality from blue to weak red) that I was chasing down and when I checked the pickup resistance I thought I found my smoking gun.

I checked the rest of the ignition system, changed one wire and connector that was shorting at coil and no change to spark, but dash amp meter now is steady at idle instead of fluctuating.

I called the mfr. and was told that they don't have specs. for diagnosis and that they just buy them from some place in China (probably American owners though :evil: ) and put their name on them. So there is no way to know if there really good or not.

Anybody know of a good source???
Author:  SlantSixDan [ Mon Jan 04, 2016 12:55 pm ]
Post subject: 
Quote:
Anybody know of a good source?
Yup, Old Car Parts Northwest, who will sell you either a real (American-made) pickup coil or a real (NOS Chrysler) complete distributor so you can get out of the jail created by "remanufactured" garbage.
Author:  74A1Swinger [ Tue Jan 05, 2016 11:22 am ]
Post subject: 
Thanks Dan, I wasn't expecting to see anybody that still has NOS parts that are available. It looks like a nice source! I'll have to call and see how much he's selling those ignition parts for now a days.

74
Page 1 of 1 All times are UTC-08:00
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/