73-87chevytrucks.com

General Site Info => General Discussion => Topic started by: AJII on August 05, 2011, 06:11:05 pm

Title: Wiring and Brake Questions! Noob!
Post by: AJII on August 05, 2011, 06:11:05 pm
Hey Guys,

My Dad and I recently acquired an 85 K10 with a blown engine. We're putting in a carb'ed 5.3 and I have a few questions about wiring and other misc things..and I'm sure as time goes on I'll have a lot more questions!  ;D

We noticed on the front brakes that the outside pad was not contacting the rotor, the inner pad was doing all the work. Would this be a bad caliper or bad master cylinder? It's doing the same thing on both sides.

The vacuum ball thats on the driver side..what does this do? Right now, it's connected to the windshield wiper fluid bottle, but this doesn't seem correct?

And I believe this is the wiring for the oil pressure sender and dummy light? Am I correct? The plug on one is new, but they are connected.
(http://i298.photobucket.com/albums/mm241/mississippi305/ff152e87.jpg)
(http://i298.photobucket.com/albums/mm241/mississippi305/f6fe47fb.jpg)

Thanks for any help you can give!
Title: Re: Wiring and Brake Questions! Noob!
Post by: DustyRusty on August 05, 2011, 06:17:45 pm
Sounds like both your calipers are bad.  I'd replace both w/ reman'd or new and w/ new pads.  They aren't that expensive.

Can't help you on the wiring.  Someone will be along to help you on that.

Rusty

P.S. Welcome from Alaska
Title: Re: Wiring and Brake Questions! Noob!
Post by: Blazin on August 05, 2011, 07:18:10 pm
The round plug is the oil pressuer gage / light. The other works the choke, its been a while since I have messed with one but it has something to do with the choke.
The brakes sound like the slides are stuck. Pull the calipers off, and compress them. If they return smoothly I would try wire wheeling the slides / bolts etc. Lube them up with brake grease, do pads and rotors if they need it though.
Title: Re: Wiring and Brake Questions! Noob!
Post by: Dr_Snooz on August 05, 2011, 10:13:06 pm
x2 on caliper guide pins.
Title: Re: Wiring and Brake Questions! Noob!
Post by: Irish_Alley on August 05, 2011, 10:54:40 pm
slide pins for sure
Title: Re: Wiring and Brake Questions! Noob!
Post by: bake74 on August 06, 2011, 10:55:23 am
Quote from: Blazin on August 05, 2011, 07:18:10 pm
The round plug is the oil pressuer gage / light. The other works the choke, its been a while since I have messed with one but it has something to do with the choke.
 

   As blazin said, if memory serves me right, the second pic is for the fast idle electonic cam for the carb.
Title: Re: Wiring and Brake Questions! Noob!
Post by: jaredts on August 06, 2011, 09:29:34 pm
The smaller is an oil pressure switch.  It completes the circuit for the choke heater so that the heater starts to open the choke once the engine is running (once oil pressure builds).  Electronic cam???
Title: Re: Wiring and Brake Questions! Noob!
Post by: AJII on August 07, 2011, 04:32:57 pm
Thanks guys!

I bet all of you are right on the money about the slides. The entire underside of the truck was covered in mud, so I bet they are caked and stuck.

I dug around the harness some more, and found what I believe to be the other plug for the oil sending unit, it's a rubber connector just like the other, but has just one pin instead of two.

Thanks for all your help!