C3 Lt-1 ignition/distrib replacement.
Thread Starter
Intermediate
Joined: Jan 2015
Posts: 31
Likes: 0
C3 Lt-1 ignition/distrib replacement.
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~ $
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~ $
Melting Slicks
Joined: Oct 2001
Posts: 2,065
Likes: 1,395
From: Halifax, Nova Scotia, Canada
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~ $
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~ $
Thread Starter
Intermediate
Joined: Jan 2015
Posts: 31
Likes: 0
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.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
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?
Post pics of your distributor and why it appears to be off its axis?
Thread Starter
Intermediate
Joined: Jan 2015
Posts: 31
Likes: 0
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
here some pictures to help you understand what happened and the state of my distributor
http://imgur.com/a/U9p19
Last edited by TheFranch; Jun 13, 2017 at 02:15 PM.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,482
From: Southbound
Cruise-In II Veteran
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.
Last edited by Easy Mike; Jun 13, 2017 at 02:28 PM.
Thread Starter
Intermediate
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Last edited by TheFranch; Jun 13, 2017 at 03:20 PM.
Race Director
Joined: Aug 1999
Posts: 18,126
Likes: 174
From: WI
what he is calling a coil is most likely the pickup coil what you or I might simply call the magnet
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Thread Starter
Intermediate
Joined: Jan 2015
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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.
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.
Last edited by TheFranch; Jun 13, 2017 at 03:26 PM.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
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].
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].
Melting Slicks
Joined: May 2009
Posts: 3,079
Likes: 315
2024 C3 of the Year Finalist - Unmodified
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?
Melting Slicks
Joined: Jan 2000
Posts: 3,326
Likes: 524
From: home
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
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....
Don't make a mountain out of a mole hill....
Melting Slicks
Joined: Oct 2012
Posts: 2,156
Likes: 273
From: Dunedin NZ.
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....
Don't make a mountain out of a mole hill....
Melting Slicks
Joined: May 2009
Posts: 3,079
Likes: 315
2024 C3 of the Year Finalist - Unmodified
OP
Here is a link to some information on the Paragon website:
http://blog.paragoncorvette.com/inde...r-restoration/
Here is a link to some information on the Paragon website:
http://blog.paragoncorvette.com/inde...r-restoration/
Last edited by Faster Rat; Jun 16, 2017 at 06:20 AM.
Thread Starter
Intermediate
Joined: Jan 2015
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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...
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...
Last edited by TheFranch; Jun 28, 2017 at 02:04 PM.