Originally Posted by mike06X
now, i read all about mismatching gears; imported gears; aftermarket timing covers, casting flash in oil passages, slop in the distributor hole, cam bearing #1 being installed wrong or without the 360 degree grooves, and the holes in the gears lining up so that oil makes it through.
my question is - i want to fix it right..i didn't build the motor, so i dont know whats in it component wise; its suppose to be a fresh build (less than a year), it came in my cj7 when i got it.
I can see the drive gear is mashed up good; the gear on the distributor (proform billet hei style) looks like its brand new. I know these should be replaced as a set; i'm probably going with the Bulltear matched set - when the cover is off, what else should be done? should I go thru the motions of pulled the cam and checking the #1 bearing? should I just spin the oil pump manually and watch for oil delivery? should i do some type of external oiling modification? should the entire engine be pulled and disassembled due to metal shavings ending up who knows where in oil passages and bearings?
Don't know what to tell you...
Volumes written on this, and I personally have been singled out by the vendors selling this junk as a liar and worse...
The Proform distributor, especially the ones sold by 4WD, have hardened gears that just plain eat away at the factory gear,
And to make matters worse, they often have shafts/housings that are too long, and bind the crap out of the oil pumps too.
Now remember, all of us that warn of bad gears and incorrect machining on these clone HEI's are out of our minds, just ask any of the vendors importing and selling this junk!
Send your distributor back for a new one and ask for the parts to make your engine right again.
If not, hit them with a small claims suit for the parts/labor to fix your engine.
They won't show up, and you win by default, but you make your point and might actually get some of the damage paid for out of the deal.
That is the ONLY way we are going to get any of this stuff stopped!
With your current distributor, there is no way to reuse it right now.
You can test the gear by using a 1/8" drill on the bottom part of the gear and trying to drill into it.
The proper ductile iron is VERY easy to drill and you will get to shaft in no time.
The hardened gears Proform is using will dull the drill before you get more than a surface polish.
You will also be able to tell they are using STEEL and not IRON once the surface has been polished...
Even if you change gears,
You are still going to be stuck with a distributor the shaft or housing is too long for your application.
Now, the rocket scientists at 4WD & Proform will tell you to use double or tipple thick gaskets to try and raise the unit up enough it doesn't put the oil pump impellers in a bind...
This is a really Chicken ***** way to do things!
If you want a 3rd party to review and write a report for a small claims case about your current distributor before you modify it or send it back to Proform/Vendor, I'd done three so far, Two have resulted in judgments for the plaintiff, the third is still pending.
Once the measurements are taken, report is written, and the problems with the distributor are documented by a third party, you can send the distributor back to Proform/Vendor for a replacment...
The idea of a replacment is so you have BRAND NEW stock to return when the case is settled,
You can send me the brand new one and I can blueprint it to see if the the problems are 'Persistent', further proving your case.
*IF* You stack gaskets as recommended by the manufacturer/vendors, then as the gaskets compress you will have TWO problems,
1. As gaskets compress, the distributor will become loose and move around with rotation of the shaft.
This is minor but aggravating.
2. As gaskets compress/decompose, the distributor will drop back down where it is binding the oil pump impeller again, and cause this same problem (or worse!).
That not only adds excessive wear on the oil pump,
But it creates drag on the cam drive gear to distributor driven gear...
And if you throw in a hardened steel distributor gear with machining that looks like machine tool cutting teeth, you can see where this is heading.....!!!!
Take a look at the top pictures of this page, and see if any of it looks familiar...
If you have pictures you would like to add to this page to try and inform others about this problem, I'd sure like to post them on there for you!