TheFranch

hello,

my stock Lt-1 distribitor is dead, and i want to replace it. Unfortunatly i don't find anything else than other rebuilt distributor at crazy price...

So im wondering what should i pick ? since i can't afford something at 1000$
any other distributor/ignition system that can fit a 71 Lt-1 with no perf loss ?
for 300/400~ $

Barry's70LT1

What is "dead" about your distributor ? Do you have a T.I. ignition ? Is the T.I. pickup coil dead? Is the main shaft/tach gear stripped ?

TheFranch

Yes its the stock T.I ignition

At first i though it was the coil so i changed it, but when i ran the car i heard noise...
Then checked the distributor and i understood that the coil was hiting the other part while spining because the distributor doesn't rotating properly on his own axis.
It ruined a bit the new coil... the old coil was used to rotate bad this is why he wasn't making any "hit" sound (don't know if you understand my english sux, im french)

The distributor seem's to have several used, worn parts he's 40 years old.
I don't know if i can "rebuilt" it, i may not have the good tools and in France very few people to work on this if i can't do it.

Easy Mike

I'm confused because I think you are confused. The coil does not rotate. I think you may be confusing "coil" for rotor.

Post pics of your distributor and why it appears to be off its axis?

TheFranch

Yes my bad i misunderstood myself, the coil deosn't rotate its the axis

here some pictures to help you understand what happened and the state of my distributor

http://imgur.com/a/U9p19

Easy Mike

I believe you need a distributor main shaft (what you call "axis"). The tach drive teeth look chewed up to me. There are kits available to rebuild your distributor.

TheFranch

Yup, i found this one : http://www.chicagocorvette.net/item.php?item=28750

redvetracr

what he is calling a coil is most likely the pickup coil what you or I might simply call the magnet

TheFranch

Im really sorry for all the confusion

Yes i changed the pickup coil already, this is how i found my issue... since with the new pickup coil, the rotor was hitting his edge, the old coil was worn already.

7T1vette

While the distributor shaft may show some surface wear, the bushings inside the distributor housing are what is likely worn. The shaft is much harder than the bushings and should not wear (unless metallic trash is being circulated with the oil).

These bushings are readily available and are fairly easy to install. I highly recommend that you have your distributor housing repaired and rebuild the original distributor for the car. When rebuilt, that distributor will be as good as new. The electronic ignition system for that car (T.I. system) is very good and is a super asset to an original LT-1 car; in fact, it would be detrimental NOT to have it on your car [based on 'value' of the car].

Faster Rat

My original distributor housing had worn bushings. The consensus amongst the experts (not including me, because I am certainly no expert) was that new bushings need to be align-bored together in order for the shaft to rotate properly, aka working fine and lasting a long time. They did not know of anybody that still had the necessary tooling to do that correctly. Therefore, I replaced the housing with a known good one. Didn't even keep the metal tag. It solved my problems, but then again...I am not revving my engine to 6500 rpm.

Perhaps you can enlighten the OP in France as to where he can send his original distributor housing for a guaranteed fix, including return freight both ways?

3X2

My suggestion would be tispecialty.com

7T1vette

If the new bushings are made properly (center hole concentric with the bushing O.D.) then just using a reamer to get final bore size should be no big deal. You don't need big equipment for that. And since the two bushings fit into the same bore in the housing, both should be properly aligned with each other after being reamed.

Don't make a mountain out of a mole hill....

redvetracr

thats Fiedlers (ti specialty) job and an expensive one at that

Haggisbash

I agree, I rebuilt my dist (earlier points model) and it was not that big a deal to fit new bushes, any competent machinist should be able to do this for you if you can't. Just tell them its for an old chevy and not a Corvette else the price seems to often go up!

Faster Rat

OP
Here is a link to some information on the Paragon website:

http://blog.paragoncorvette.com/inde...r-restoration/

TimAT

I'm running an MSD tach drive distributor with all of the original TI coil and amplifier. Works great. Pretty much a plug and play system.

TheFranch

Hi ok, im back with the parts/rebuild kit...

I rebuilded my TI Ditributor today and i have some technical question, please check the picture if you don't understand what im trying to explain.

after rebuild everything properly(i guess) i have the pole piece that hit the edge of the pick-up coil when i turn the came on itself... the came turn well withiout any "move" she's well tight in the distributor, (i didn't forget any screw or else)

The wole things seem's really weird i doubt the pole piece is supposed to hit the pick-up coil edge everytime it turn... and if i simulate the move from the distributor pump the hits between the pole piece and the pick-up coil are getting worse since the pick up coil move on itself (i have to loosen him or the pump couldn't make his action)

The new parts


The rebuild step...
http://imgur.com/a/HtvGf

My issue...

TimAT

I'd try loosening the screws that hold the pole piece and try to shift the position so the teeth are close but don't hit.

TheFranch

The pole piece is attached and hold by the came, i don't know which screw you are talking about.