Recent content by 4thwheel

3FE cylinder Head still available?

The infamous exaust manifold leak... My 40 plus thousands of others have one... Carbon Monoxide in the cab is a bad thing unless your in for a loooong nap... Pull the manifold, head to the machine shop, buy an OEM gasket and follow the torque sequence/spec's... thats what Im gonna do... tick...

EGR valve is usually the suspect for bucking... Try disconnecting the vacuum lines to the EGR and cap the ends or link them together to isolate the EGR. If the bucking stops... you found the problem... otherwise, check ALL the vacuum lines using Trollholes 1981 2F Emissions FSM. Its in a PDF on...

Did you set up the TPS per FSM instructions? They can be a PITA and cause stumbling/idle problems. Also are there any codes / check engine light.... If so, thats the 1st place to start.... I have been through this on my 1990 fj62 after a complete engine rebuild. Throwing parts at the problem wil...

Tranny in neutral and have an assistant turn the front driveshaft while inserting the axle shaft...

Make sure you reconnect the oil sender plastic connector to the CENTER pin on the sending unit... NOT the spade connector (if equipped). The spade connector is a unused ground connection and if you connect to this ...poof! there goes the dash oil gauge! Ask me how I know...

Question, could a broken cold start timer switch cause the engine to run too rich even after the engine is warm/normal operation temp? Answer: Were in uncharted water... The lack of a continious signal to the main EFI computer (ECU) from the switch might cause abmormal air/fuel mixture. I dont...

Thats the one Your pic is the cold start injector... The pics in your post are of the broken Cold Start Timer Switch. The switch controls the time that the injector sprays raw fuel into the manifold on initial startup... I think only during cranking with the starter. The circut is shut off...

Cold Start injector TIMER switch This sensor samples the coolant temp in the thermostat housing. If Cold... send a signal to the cold start injector to inject fuel into the intake "manifold"... similar to a choke on a carb setup. If Warm... sends a signal for some fuel, but less than cold...

Is it leaking oil? The smoke and burning oil smell at the back of the valve cover could be due to a loose or missing oil galley plug.... Oil would be leaking on the passenger side head... next to #5 cylinder. You might see a puddle of oil under the truck if thier was any oil left, if the plug...

Thanks cruiserAUS Will be using the entire kit on my project... Funding later today. Thanks cruiserAUS!

Hi pm'd you before you moved to classfied...im in Denver Hi pm'd you before you moved this to classfied... Im in Denver Would like to come check out your kit.. 4thwheel here on mud

i had the same problem after a complete engine rebuild. 1st, did yours run like this before the HG failure? if not... By all means check all the vacuum port and hose routing per FSM diagram... then recheck them again tracing one line to one pipe at a time. I had one hose connected to the wrong...

The oil passage from the block to the head and rockers passes thru the head gasket but would not be blocked off by any gasket mfg. It flows through the oil galley drillings in the head. To reach the rockers, it flows thru one of the rocker shaft mounting towers on the rocker shaft assembly...

Bad tre's will take you out 1990 fj62 Pulled in to have an emissions test, tech pulled it in to the bay and passed the test no problem... upon exiting the bay we heard a clunk and the pass side tire turned hard right to the stop. The drivers side still pointing straight. 5 min. earlier I was...