1971 LT-1 Radio Capacitors

[Paul C.]

How many capacitors should a 71 LT-1 with TI ignition have? Is there a capacitor on the coil--mine doesn't have one. There is one on the heater motor and one behind the speedometer under the dash--correct?
Thanks Paul

[Peter L.]

Re: 1971 LT-1 Radio Capacitors

Paul - I would expect the radio pages in the AIM would include a page with the capacitors. I know the AIMs for the earlier Corvettes do.

And yes, I would expect the coil to have a capactor.

Pete

[Peter L.]

Re: 1971 LT-1 Radio Capacitors

Paul - I'm assuming your car was equipped with a radio from the Factory. Pete

[Jack H.]

Re: 1971 LT-1 Radio Capacitors

I have a recollection of a service bulletin to the effect NOT to install a radio RF capacitor on the ignition coil of TI equipped cars... What year(s) that affected and whether all came from the factory without that capacitor is something I can't testify to...

[Terry M.]

Re: 1971 LT-1 Radio Capacitors

My 1970 LT1 came with, and still has the coil capacitor. There are also the above mentioned heater blower motor capacitor as well as one on the brake switch wires under the dash. I can't tell you about the back of the speedometer as i haven't been there.

[Sal C.]

Re: 1971 LT-1 Radio Capacitors

Terry, How about the turn signal flasher?

[Terry M.]

Re: 1971 LT-1 Radio Capacitors

Terry, How about the turn signal flasher?

Thank you Sal, I forgot that one. Good catch.

I always remember the brake switch because that one is on the wires with a "Scotch Lock" and to this day I can't believe those things existed in 1970, but there it is bright blue staring at me everytime I try to do anything under the dash.

[Sal C.]

Re: 1971 LT-1 Radio Capacitors

Timing couldn't have been more perfect as I was just going over my notes on this for revisions to the Judging Guide.

[Paul C.]

Re: 1971 LT-1 Radio Capacitors

Just talked to Dave Fiedler TI specialty) who rebuilt my TI distributor and amplifier. He says there was a bulletin that stated TI coils should not have capacitors on them--could damage system. He says TI systems should not have capacitors. From a judging point of view what should I do. Mine didn't have one but I'm not the original owner.

Paul

[Paul O.]

Re: 1971 LT-1 Radio Capacitors

Paul my 1971 LT-1 S/N 1914 had a capacitor on the coil. Also a local chapter member I helped in his restoration LT-1 S/N 6000 + also had the capacitor. As Terry and Sal pointed out both both cars had one at the Brake switch, flasher pass side and also at the heater blower motor. My car I purchased in 1974 and was second owner unmolested and the other members car came with the original engine out of the car but the Carb, Coil and distributor were still on the engine. Paul 18046

[Paul C.]

Re: 1971 LT-1 Radio Capacitors

Looks like I need to get a capacitor. Anyone know a source? Thanks

[Terry M.]

Re: 1971 LT-1 Radio Capacitors

Just talked to Dave Fiedler TI specialty) who rebuilt my TI distributor and amplifier. He says there was a bulletin that stated TI coils should not have capacitors on them--could damage system. He says TI systems should not have capacitors. From a judging point of view what should I do. Mine didn't have one but I'm not the original owner.

Paul

Paul I respect Dave a whole lot, and I should knock on wood before I say this -- but ALL the original components of my TI system are in tact and it worked fine the last time I ran it.

Now Dr. Hulst will jump in and point out that was years ago -- at the Windsor National, so I better fess up to that. I also had to replace the magnetic pick-up coil. Those little stinking wires broke from the vacuum advance movement. But I don't think that has anything to do with a capacitor and the "damage" it might do. Am I lucky -- you bet, and I don't even go to church more than once each Sunday.

Dave is right there was some kind of instructions not to install a capacitor at the coil with the TI system, but apparently no one told St Louis about it.

[Sal C.]

Re: 1971 LT-1 Radio Capacitors

Paul, you're next question, as is mine, should be: Which one do I need? The AIM lists 2 possible numbers for a 1971 depending on when the running change actually took place, 1947452 before May 11, 1971 and 1852715 after. The number in the current Judging Guide is incorrect.

[Paul C.]

Re: 1971 LT-1 Radio Capacitors

Thanks Sal. My build date is January 28, 1971. So I would need 1947452. Anyone know where to get this capacitor???

[Dave S.]

Re: 1971 LT-1 Radio Capacitors

Thanks Sal. My build date is January 28, 1971. So I would need 1947452. Anyone know where to get this capacitor???

My 71 LT-1 is #16798. It is a low milesge 5 star car and as you can see by the attached photo it does have a capacitor on the coil. Due to storage constraints I can't get a look at the bottom to get the number but once spring comes I'd be glad to look.