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Username Post: 235 mini HEI troubleshooting        (Topic#353722)
Alegm 
Poster
Posts: 25
Alegm
Reg: 01-05-13
11-01-18 08:30 PM - Post#2750226    

Hi folks:
in mars this year I bought a Mini HEI kit (incluiding distributor, spark plugs, spark wires set and both square and round coils) from Langdons

I installed the kit following all the instructions(changed the power wire to #10, spark plugs gap close to .060. timing etc) and I used the round coil to start 'cause at this point i had not place where to set the square one. Well the car ran like never before for 1 month or something, i was very happy though, but one day after turn it off and fire it up againg and driving for 2 miles or something the car started to hesitate, jerking and the valves were pinging as if the timimg was wrong..... at some point when I stoped pushing the gas pedal the engine just died and there were not way to fire it up again.(at this point I used my old Delco-Remy points distributor to comeback home).
Next day I tried to restart de egine with the mini HEI again but it didnt worked either... I blamed the round coil and used the old distributor ever since.(at this point i was so disapointed that didnt bother to call Tom and did nothing)
Yesterday i felt enthusiastic again and fabricated a support for the square coil, put in the HEI again, fire it up and ran like crazy for 2 miles or something after wich the same problem came back again. i took the dis. cap out and touched the 4 pins module, it was cold, no apparent problems
Now I know it cant be the coil 'cause i've used both,

what do you guys think may be causing this problems??

Thanks in advance

Alex



 




ragtp66 
Contributor
Posts: 710
ragtp66
Reg: 12-09-07
11-03-18 01:23 PM - Post#2750359    
    In response to Alegm

Sounds like a bad ignition module. Even in a large cap HEI they tend to fire up when the engine is cold and then as they heat up they stop. When they finally stop working the car just cranks and wont wire. Did you be sure to use the die-electric grease when you installed it? If the module is a no-name brand that is where I would look. Even with the large cap I keep a spare and a couple screwdrivers in the glove box. If it totally goes out I can swap them and be back on the road again.

Toys:
1958 Impala 2dr Hardtop Under Construction
1966 Chevelle Malibu Convert M20/350 Aztec Bronze
1987 Sea Ray Pachanga 22
2002 Cadillac Escalade EXT Parts chaser
2007 Trailblazer SS -gone and missed


 
DonSSDD 
Silver Supporting Member
Posts: 6908
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
11-04-18 06:12 AM - Post#2750407    
    In response to ragtp66

I’d suggest a Pertronics, I haven’t had these problems with their module installed in a stock distributor, been using them sine 2002. I’d use their recommended coil.
Don

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


Edited by DonSSDD on 11-04-18 06:13 AM. Reason for edit: No reason given.

 
55 Shaker 
Member
Posts: 1459

Age: 69
Loc: north central IL.
Reg: 03-13-06
11-04-18 06:50 AM - Post#2750410    
    In response to Alegm

Don't use die-electric grease under the module, use heat sink compound.

The older I get, the more dangerous, I am !!!!


 
Alegm 
Poster
Posts: 25
Alegm
Reg: 01-05-13
11-04-18 03:16 PM - Post#2750454    
    In response to 55 Shaker

Yesterday evening/night I started to examine my dist. for 50th time and i discovered what the problem was….. the 6 pointed star was loose(rotate) in its shaft(the piece of the dist. shaft who support the counterweigh advance) ….so that was causing that the timing went crazy…… now I'm figuring out what the solution could be…. do you think I can solder this without affecting the circuit??



 
DonSSDD 
Silver Supporting Member
Posts: 6908
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
11-05-18 04:33 AM - Post#2750491    
    In response to Alegm

Can you post a picture?

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
ragtp66 
Contributor
Posts: 710
ragtp66
Reg: 12-09-07
11-08-18 07:29 PM - Post#2750839    
    In response to 55 Shaker

Thanks for the correction ! Brain cramps seem to occur more often the older I get, either that or one to many sockets to the melon when they slip and your on your back. Never understood why they didn't make sockets hex shaped so instead of ALWAYS rolling to the dead center of the car 1" farther then your fingers can reach, they would just stop when they hit the ground.

Toys:
1958 Impala 2dr Hardtop Under Construction
1966 Chevelle Malibu Convert M20/350 Aztec Bronze
1987 Sea Ray Pachanga 22
2002 Cadillac Escalade EXT Parts chaser
2007 Trailblazer SS -gone and missed


 




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