The Ford Barn

Fatboy Tim · 08-30-2018, 06:20 AM

Got a Mallory crab on a 284 French block, ran fine then died, no spark at plugs. Changed the coil, all wires ok. Think it might be the distributor, do these have any internal parts that can wear out / fail? I can't find a manual for them online.

Thanks for any replies.

51 MERC-CT · 08-30-2018, 06:58 AM

Don't see any mention of the condenser?

Fatboy Tim · 08-30-2018, 07:03 AM

Good call!

AnthonyG · 08-30-2018, 07:21 AM

If not the condenser, electronics on the whole have improved immeasurably the rule still holds true. The internal module will either last almost forever or like all electronic devices with boards & chips will work for a while then fail in a short time. Most work a long time. How old is urs? Think Mallory has a good warranty.

47Merc · 08-31-2018, 01:05 AM

Assuming it is electronic, if you do not have a resistor in the power to the coil and distributer you will have burnt the module out.

Fatboy Tim · 08-31-2018, 03:16 AM

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thanks, stripped it down and will change the module.

47Merc · 08-31-2018, 08:45 AM

Re my previous post, you may have to have full 12 volt to the distributer hot wire but definately need a resister to the coil. You should have a Mallory wiring diagram and wire it exactly as it shows.

The diagram below is for a Speedway distributer that uses a Mallory module however yours may be different.

08-30-2018, 06:20 AM	#1
Fatboy Tim Member Join Date: May 2010 Posts: 57	Technical; Mallory crab Got a Mallory crab on a 284 French block, ran fine then died, no spark at plugs. Changed the coil, all wires ok. Think it might be the distributor, do these have any internal parts that can wear out / fail? I can't find a manual for them online. Thanks for any replies.

08-30-2018, 06:58 AM	#2
51 MERC-CT Senior Member Join Date: May 2010 Location: East Hartford, Ct Posts: 5,898	Re: Technical; Mallory crab Don't see any mention of the condenser? __________________ DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES

08-30-2018, 07:03 AM	#3
Fatboy Tim Member Join Date: May 2010 Posts: 57	Re: Technical; Mallory crab Good call!

08-30-2018, 07:21 AM	#4
AnthonyG Senior Member Join Date: May 2013 Location: Pa. Posts: 2,167	Re: Technical; Mallory crab If not the condenser, electronics on the whole have improved immeasurably the rule still holds true. The internal module will either last almost forever or like all electronic devices with boards & chips will work for a while then fail in a short time. Most work a long time. How old is urs? Think Mallory has a good warranty. __________________ Nomad

08-31-2018, 01:05 AM	#5
47Merc Senior Member Join Date: May 2010 Location: Australia Posts: 362	Re: Technical; Mallory crab Assuming it is electronic, if you do not have a resistor in the power to the coil and distributer you will have burnt the module out.

08-31-2018, 03:16 AM	#6
Fatboy Tim Member Join Date: May 2010 Posts: 57	Re: Technical; Mallory crab Sponsored Links (Register now to hide all advertisements) thanks, stripped it down and will change the module.