tach filter
Thread Starter
Cruising
Joined: Jan 2006
Posts: 12
Likes: 0
From: l98 86 coupe
tach filter
hi guys. my tach filter has gone bad and the dealer said it is discontinued. so does anyone know where i can get one or can i just run without and wire around it?86 auto coupe
Melting Slicks
Joined: Mar 1999
Posts: 2,830
Likes: 20
From: Las Vegas Nevada
My tach filter was bad as well. CFI-EFI informed me that he runs without one in a previous discussion about this same topic a few months ago. If you've been here for any length of time you know he is very knowlegable and helpfull. If he says it runs well without it that is good enough for me. The tach wire plugs directly into the distributor with the section of wire containing the filter removed. I have not started my engine yet with the tach filter removed so I can't speak from personal experience.
Please post your results if you choose to bypass the filter on your car.
Please post your results if you choose to bypass the filter on your car.
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Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 32
From: The Top of Utah
Originally Posted by MR NICE
Let us know if you can bypass it,I have the same problem.
Originally Posted by MR NICE
Originally Posted by rick lambert
that's great to know
Originally Posted by VtVette
Please post your results if you choose to bypass the filter on your car.
Originally Posted by VtVette
Great to hear. This should be added to the Tech tips.
RACE ON!!!
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
I haven't tried running my engine with my tach filter disconnected, but I'll keep that info in mind incase I ever have a filter problem.
If you JUST have to have the filter, I've seen one advertised for sale in one of the catalogs. Forgot which one specifically, but it was one of the Vette catalogs; Mid America, Corvette Central, Ecklers, etc.
Jake
If you JUST have to have the filter, I've seen one advertised for sale in one of the catalogs. Forgot which one specifically, but it was one of the Vette catalogs; Mid America, Corvette Central, Ecklers, etc.
Jake
Racer
Joined: Oct 2005
Posts: 405
Likes: 0
From: 1984 crossfire, Alhaurin de la Torre Malaga, Spain
I did run without a filter in my 84, but considered it a bit risky for my instrument panel.
When I measured one, it contains an inductor and one or more capacitors. So It may protect your cluster from voltage spikes. So if you feel unconfortable, I may be able to measure the filter and tell you how to make it from low cost RS materials.
Tell me if it is worth doing, I feel happy to help if one thinks it eases his mind.
When I measured one, it contains an inductor and one or more capacitors. So It may protect your cluster from voltage spikes. So if you feel unconfortable, I may be able to measure the filter and tell you how to make it from low cost RS materials.
Tell me if it is worth doing, I feel happy to help if one thinks it eases his mind.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 32
From: The Top of Utah
Maybe I've just been lucky. I really don't know much about electronics. A wire broke off of my filter, I bypassed it, and it has been trouble free for years. I don't know anything about this guy. I've had the link for years, but never used it. The fact that the site comes up is encouraging. Check HERE if you want to look into a new tach filter.
RACE ON!!!
RACE ON!!!
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
when mine went kaput i had no choice but to go to a salvage yard. the 90/91 tach filters are without replacement. i got a good used one, wrapped it in heat tape, installed it and voila, my tach relaxed and went back to normal after going literally haywire for 2 months.
i'm not comfortable with the bypass solution.
i'm not comfortable with the bypass solution.
Instructor
Joined: Jan 2005
Posts: 197
Likes: 0
From: East Amherst New York
I have one off my 89 that you can have for $25 delivered.
When I put in my new 383 I lost the original and purchased a used
one from contemporary corvette for $50 PLUS SH.I just recently found
my original in the basment and now I have 2.
When I put in my new 383 I lost the original and purchased a used
one from contemporary corvette for $50 PLUS SH.I just recently found
my original in the basment and now I have 2.
Melting Slicks
Joined: Feb 2002
Posts: 2,699
Likes: 2
From: The Black Hole LA
I just got my 383 running this past weekend, thanks to CFI and others no less, and part of the rebuild required a used engine harness to replace the original. The used harness had already had the filter removed so I went with it like it was and although I haven't run it for very long period of time yet, it seems to operate fine. I've got a '90 model.
Racer
Joined: Sep 2004
Posts: 495
Likes: 0
From: berwick pennsylvania
Last edited by 85blkrose; Mar 14, 2006 at 03:43 PM. Reason: bad link
