C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Changing the tach filter on a 91

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Old Jul 28, 2008 | 11:00 AM
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Default Changing the tach filter on a 91

Well I thought I would "quickly" change out my tach filter today but no such luck -- with the tight squeeze between the rear of the block and the firewall I could not even locate the tach filter wires (working from the top) to change it out.

Is this "normal", and does anyone have any tips or tricks? Would it be easier to reach from underneath the motor?

1991 L98 auto

Thanks all!

Joe
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Old Jul 28, 2008 | 11:10 AM
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Get it from the bottom, mine was held by the top bolt on the bell housing . I don't think you can even reach it from the top.If your using a aftermarket filter without a metal mount.you don't even have to remove the old one if you don't want to. Just wire it in and attach it securly to one of the wires with tape.. WW

Last edited by WW7; Jul 28, 2008 at 11:17 AM.
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Old Jul 28, 2008 | 08:37 PM
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Remove the dist
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Old Jul 29, 2008 | 11:03 AM
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removing the dist is easier than getting the filter from underneath? Not sure about that...
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Old Jul 29, 2008 | 06:21 PM
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The tach on my 91 is way off. I think it is the filter. Where did you get a new one? I could not find one.

Gary
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Old Jul 29, 2008 | 08:27 PM
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go to www.rodneydickman.com Click on online shopping. Click on Electrical Tab at top of page.

Joel
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Old Jul 29, 2008 | 08:56 PM
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Originally Posted by blkvette85
The tach on my 91 is way off. I think it is the filter. Where did you get a new one? I could not find one.

Gary
Read
http://forums.corvetteforum.com/show...ght=tachometer


90/91 tacho's have problems
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