-   Jeep CJ Forum (
-   -   Tack problems (

dallen 10-09-2002 09:55 AM

Tack problems
Hi all. Is there any reason the stock tack in a 86 CJ7 should not work after installing a MorPar fuel injection system on the stock 4.2 engine. Thanks for your help.

NaeKid 10-09-2002 10:17 AM

I am not sure I understand your question ..

Tack? Tank? Gastank maybe?

Fuel-injection system for the 4.2l (258ci) is a fairly simple (relative term) install .. all the problems were worked out to do the kit .. which one are you looking at, do you have it, is your Jeep in pieces right now as you are doing it?

More info .. please ..

Bob K 10-09-2002 10:33 AM


werewolf7111 10-09-2002 06:33 PM

there shouldnt be-maybe a wire is knocked loose

joeMSME, PE.

CSP 10-09-2002 07:26 PM

The stock CJ tach is not like any other tach. It does not simply read the ignition pulses like an aftermarket tach. It is wired in series and is an actual part of the ignition system. When you install the Mopar kit you eliminate the stock ignition altogether. The tach is part of what you eliminate. I know of a group of people were trying very hard to get a stock tach worked into the Mopar ignition, but I don't know if they were successful and never saw any more info on the web about it. Hesco (maker of Mopar kit) recommends you go to an AutoMeter tach and it must be switched to 4 cylinder to work with the Mopar MPI.

Jeep Daddy 10-10-2002 01:03 AM

Very Interesting!:confused:

jeep1 10-10-2002 11:49 AM

Use the 4 cyl. CJ tach or the aftermarket lookalike. I have the MPI on a 258 and used the 4 cyl. cj tach.

dallen 10-10-2002 04:12 PM

Thanks to all for your help.

The time now is 07:06 AM.

Powered by vBulletin Version 3.8.8
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.