720World

Little Trucks, Big World

Engine Problems (315)

Discussions Replies Latest Activity

No Charge and Battery Dies

My 86 720 Kingcab had been mostly sitting for about three years under a shed.  I had started maybe run it around the farm to warm it up may…

Started by David Smith

4 Oct 4
Reply by David Smith

Detonating / Knocking When Floored Z24 Carb

Hey y'all, figured I'd throw this out here and see if I could get any leads. 85 720 King Cab 4x4 with carb Z24, 5-speed manual. Engine and…

Started by baseballguru44

1 Sep 25
Reply by Tommy Perkins

Blown head gasket.... WHICH gasket to buy as replacement?

Well, after 32 years on the original engine, the head gasket blew between cylinders 3 and 4 causing loud knocking under load.  I nursed it…

Started by Marc B.

15 Dec 7, 2018
Reply by datzenmike

Truck died while driving, now no spark.

Hello there 720World!   As I was driving my 720 across town, my truck died in an intersection and now won't start back up. Checked all the…

Started by Noah Geist

4 Nov 20, 2017
Reply by Noah Geist

Fuel pump regulator

84 KC 4x4. Fuel pump stopped delivering. But it works fine if you bypass the factory circuit with a direct connection to battery. Mechanic…

Started by rickygee

13 Oct 26, 2017
Reply by Tommy Perkins

Distributor Wiring.

Hi there 720 World, My truck is not getting getting any sparked, so I went to check my coils and I realized that I have four wires just ha…

Started by Noah Geist

4 Sep 3, 2017
Reply by datzenmike

Cold start issues

Hi y'all. This would be my first post here... please let me know if it's in the right place!  I've got an '85 720 ST king cab 4x4 5spd. I'…

Started by Alex

7 Jun 23, 2017
Reply by Alex

Motorhome woe.

I have a 1982 motorhome that needs a 1981 dually rear axle assembly. I have not had any luck with the big parts recycling outfits. Any lead…

Started by Tad Cordry

0 Jun 22, 2017

Transmission woes

1984 KC 4x4 5 speed manual. Problem: Clutch pedal depresses normally, does not feel mushy like hydraulic issue. But stick will not go into…

Started by rickygee

5 Jun 4, 2017
Reply by datzenmike

Jump Start

I can't believe no one has had an engine problem after last April. This post is to prime the pump. 

Started by datzenmike

9 Jan 16, 2017
Reply by channing

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