Tach resistor

[beebeecivic]

hey guys! i was wondering if anyone know where i can buy a replacement or how to rig my own Tach resistor (located on the passenger kick panel next to the fuse block

the previous owner or whoever used pliers and tore it apart.. so yea please help

thanks!

-bee

[FastWoman]

I don't know the value of the resistor, but you should be able to buy a replacement at Radio Shack. If your connectors are trashed, you can wire in an inline fuse holder (for the plastic fuses with the tabs on the side, not the glass ones). Just bend back the resistor's leads in a loop, and insert into the fuse holder with a pair of pliers. Then put the rubber cap back over the top of the resistor. You can also get M and F 2-conductor Molex connectors at Radio Shack. Just build the resistor into one of the connectors.

Do you have the old resistor? Can you read the color bands painted on it?

[zcarnut]

I seem to remember that the tach resistor was 20KΩ 1/2W.

Just be sure you use the correct type of resistor. The voltage pulse across this resistor can exceed 350V in amplitude. The replacement resistor must be pulse rated to handle 500V regardless of its power rating.

Use a carbon composition (carbon comp) resistor if possible. This type of construction is well known to be able to handle high voltage pulses and this was the type that Nissan originally used. However, carbon comp resistors are getting more difficult to locate as very few resistor manufactures offer them anymore. A second choice would be a metal film resistor then maybe a metal oxide resistor. Avoid carbon film resistors for this type of application.

[beebeecivic]

Thanks for the 2 suggestions, i have to admit I am a rookie at electricals , so I am going to continue my search. If all else fails I am going to try my best to construct one.

thanks again!

-bee

[beezee]

Just measured 2.175 k ohms on the resister of a 74 260 wire harness.

[TomoHawk]

Radio Shack doesn't carry too many resistors lately, so you would probably be better off going to a radio or TV repair shop. Maybe BD or MSA would have that.

Edited July 19, 2009 by TomoHawk

[zKars]

I confirm the 2.2K ohm value. Easy to find. 1/2 watt is plenty.

Jim

[beebeecivic]

When I find the resistor, should I just splice in in-line? again I am no electrician

http://www.radioshack.com/product/index.jsp?productId=2062325

i found this

Edited July 19, 2009 by beebeecivic

[beebeecivic]

So i went out and bought the 2.2k 1/2 watt resistor and soldered it on and its still the same! but at least its more of a secure connections. Thanks guys!