ntsqd
heratic car camper
I recommended the DUI module specifically because I've also had a failure with a name brand new HEI modules and I've never seen or heard of one of them failing.
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3 Arm Wiper Setup
Fix Motor Mount
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Wheel Alignment
Heat Riser Replacement
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Straighten Bumper
Ford 6R80 6 spd
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Did my pertronix fail?
- Thread starter cldonley
- Start date
OP
OP
Spent a lot of time today at the airport working on an old Piper Cherokee. I love simplicity, and airplanes are simple. Two magnetos, easy to test, inspect and fix. Points, condenser, internal generator. Makes me want to go back to points. I think I mentioned at the top of this thread that I bought this dizzy used off of a member here, but it looked brand new. Ran great for the eight miles on my odometer on dirt roads by my house (no tags, don't blab!) then next day no worky. Didn't get any time to mess with it today. Yesterday pulled the plugs and rotated the engine to TDC, installed the distributor and started hooking things up. Had to buy a set of wires-gave the set I had to a friend. Hope to give it a try by this weekend. I'll let y'all know for sure. Appreciate all the input. There's no better place on the web than this forum! And as far as pics go, I haven't posted any, but I'll get some up soon. Gus is very much a work in progress, but he's right there for getting on the road safely, if not in style!Long...
It's amazing how different stuff can work for different folk without any flaws.
I know when Petronics first came out, they had a couple of small issues, but since then, they've been flawless, except for maybe this one...
I tried a Mallory HEI distributor ( before holly bought them out) bought brand name pickup modules and they would die after maybe a month, I would never go back. Just my experience.I'm sure there's great ones out there.
I used to have two blue Duraspark OE modules bolted to my fender for a quick easy wire plug in replacement for when they failed.
These were all Motorcraft, and when you got a good one, they would last five to ten years, and then you might go through two or three in one year...
Find something that's works for you and run with it.
I went back to OE with Ford's wasted spark ignition w/o a dizzy for yrs & loved it. Course it needed a Moates Qtrhorse chip, that would piggyback on a mustang computer... during covid, when those got super rare and I built a different engine, I went to the Holley Terminator X.
I put that decision off for about 9 years because I ran a Holley Projection when they first came out, and they were not supported, very long.
That's the other concern for those that keep their Broncos any length of time. Can I get parts to replace what I put in 10 or 20 yrs ago?
Hope you figure this out and when you do let us know.
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OP
OP
I was just looking at the DUI website. I see that they have a duraspark offering, but I don't see one at first glance for my 96 351W running a carb. I guess I'd need to call them about it. What I'm installing is an ebay knockoff of the DUI HEI style.
ntsqd
heratic car camper
I see this D-S II distributor, but no D-S II modules. The roller cam option for a 351 isn't there, only for the 5.0's. They do offer a TFI module.
ntsqd
heratic car camper
Problem is that his '96 351W is more than likely to be an OEM roller cam shaft. Isn't it? I know that not ALL of those late 351's were, but I understand that most are.
OP
OP
It is a roller. Needs the brass or iron gear. Not too hard to swap gears though.
OP
OP
You’re correct, but the installation instructions specify less that 1.5 ohms, which the coil I’m using is advertised to be. The total system resistance is supposed to be less than 4.5 ohms, which also checks. I just seem to be really adept at getting the “how did that happen?” anomalous problems to figure out.
Use the "Mellonized" dist gear. Do not use brass.
Roll pins can be different sizes thanks to Ford & 99% of the holes drilled thru the dist gear aren't centered... kid ya not. I've done so many & just swear at Ford engineers every time I have to do another one. Why do we have to do them anyway? Same reason, Ford engineers are just outta HS I swear!
Roll pins can be different sizes thanks to Ford & 99% of the holes drilled thru the dist gear aren't centered... kid ya not. I've done so many & just swear at Ford engineers every time I have to do another one. Why do we have to do them anyway? Same reason, Ford engineers are just outta HS I swear!
ntsqd
heratic car camper
I think that those roll pin holes are deliberately drilled off-center. They're too consistent at doing that for it to be an accident. Why, I have no bloody idea!
OP
OP
Maybe to keep you from installing the gear upside down? I’ve changed a few. I bought a kit with about 25 different sizes (for airplane use, but same same).
OP
OP
Never used the brass, didn’t like what I read about them.Use the "Mellonized" dist gear. Do not use brass.
Roll pins can be different sizes thanks to Ford & 99% of the holes drilled thru the dist gear aren't centered... kid ya not. I've done so many & just swear at Ford engineers every time I have to do another one. Why do we have to do them anyway? Same reason, Ford engineers are just outta HS I swear!
OP
OP
Tell us how you really feel…
ntsqd
heratic car camper
I was sad that he felt that he couldn't express how he really feels about those roll pins.
I guess i've done that a couple times here about ford engineers and their high school design team...
I help enough Chevy guys with hot rods to know that everything you need it seems like, interchanges from one decade to the next and Ford can't even make the same wiring column harness for 3 years in a row...
I help enough Chevy guys with hot rods to know that everything you need it seems like, interchanges from one decade to the next and Ford can't even make the same wiring column harness for 3 years in a row...
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ntsqd
heratic car camper
My first Drafting class professor had a sign in his office window "Shoot the Engineers and put the damned thing into Production." He was an Architect by training.....
Ford's ECO process is just more forgiving than GM's, so they get to rev the design more frequently or get to design something similar, but not exactly the same. GM Engineers, OTOH, know that once released that design is purt near frozen and unchangeable, so they'd better build it to be less specialized and more widely adaptable because its going to be used everywhere.
My first Engineering employer was like GM, "This is better" wouldn't even get the ECO process started. There needed to be a serious and compelling reason, preferably many of them, to change anything. Most of the ECO's there were driven by production, not Engineering.
Ford's ECO process is just more forgiving than GM's, so they get to rev the design more frequently or get to design something similar, but not exactly the same. GM Engineers, OTOH, know that once released that design is purt near frozen and unchangeable, so they'd better build it to be less specialized and more widely adaptable because its going to be used everywhere.
My first Engineering employer was like GM, "This is better" wouldn't even get the ECO process started. There needed to be a serious and compelling reason, preferably many of them, to change anything. Most of the ECO's there were driven by production, not Engineering.
OP
OP
All I have to say is, from years of setting dwell and gapping points and setting timing, at least they put the distributor in the front!
