80 Series Crank No Start

[smallv8]

Update:

Travelled for a week. 2-3 oz of mmo down each jug last Tuesday, shop rag in each hole. Pulled shop rags and turned over, no fluid out so i imagine its all seeped into crankcase. Shot more mmo down jugs. Doing compression check w/in next few days. Will put new oe plugs back in and new coil, then fire.

If to no avail; putting spare 3FE with 60k I have in stock and rebuild original.

Update:
Low compression 4 cylinders. 55 psi. Outside pouring boiling brake fluid down the cylinders like we did on the farm on Ford 9n's,I'm pulling the engine. Thx for all the support. Owned (and still do) several Landcruiser's 1F-3FE, Not knowing a lot of history on this stock engine In this old gal she had a good run to 265k. I have a spare 3FE with 60k on the clock. Prepping engine for install with gaskets. Rear main, etc. Will send pictures. Ty @jonheld for all your input. So passionate. Been on this site as long as you, maybe longer, you probably know more than I do, as always. Pictures to come. #FDT #TLC4LIFE

 

[Meddie6143]

I'll say it louder for those in the back:
"If the distributor pick up coils or the ignition coil or the igniter were an issue, there would be no/weak spark.
You would also be getting error codes (12, 13, or 14). You said you were getting good strong spark and no codes. Move on."

Spark is developed from the distributor pick up coils which are fed to the ECU and are retimed according to sensor inputs.
The ECU then feeds pulses to the igniter.
The igniter feeds the primary of the ignition coil.
The ignition coil secondary feeds the distributor rotor.

Everything mentioned above MUST BE WORKING to develop spark. MOVE ON.

At this point you have spark, fuel and compression. This engine should run.
********At any point did you remove the distributor********

I'd lay odds that your ignition timing is 180 out.

I’ve got a question for either of you . I broke the connection from ecu pigtail to distributor pigtail . Which colors go to which . Example white to ? Yellow to ? and red to? . I know there is a green /faint white , green /black and green/red . Just can’t determine which goes to which .

 

[Old Nick]

I’ve got a question for either of you . I broke the connection from ecu pigtail to distributor pigtail . Which colors go to which . Example white to ? Yellow to ? and red to? . I know there is a green /faint white , green /black and green/red . Just can’t determine which goes to which .

Go to the resources section at the top of the page and download the electrical wiring manual. It’s got everything marked and color coded. Worth its weight in gold.

 

[jonheld]

I’ve got a question for either of you . I broke the connection from ecu pigtail to distributor pigtail . Which colors go to which . Example white to ? Yellow to ? and red to? . I know there is a green /faint white , green /black and green/red . Just can’t determine which goes to which .

What year?
What motor?

 

[smallv8]

August Update! Forgot to post earlier this summer, @jonheld was correct on one of the earlier replies, the 92' spun the composite timing gear on her cam. Tossed all timing off and compression was all cattywompus. While I was in there purchased from Toyota all new gasket sets, cam timing gear, head gasket, TTY bolts and everything else the dealer would toss at me. Purchased a R12 reclaim 1 hp refrigerant kit from Vevor. Being a contractor and having many trades friends not one of my HVAC buddies had worked with R12 in years so rolled up the sleeves and did it myself. Did a lot of engine cleanup internally and externally. Doing it all myself with the help of GM EV division director, so a little slow with our busy traveling schedules. Should be back together soon and will post more pictures. Good news I still have the 92' 3FE and drivetrain with 60k on the clock if I ever need it, doubt it. Should be good for another 265,000 once this is all done.

 

[MissahPapaJ]

August Update! Forgot to post earlier this summer, @jonheld was correct on one of the earlier replies, the 92' spun the composite timing gear on her cam. Tossed all timing off and compression was all cattywompus. While I was in there purchased from Toyota all new gasket sets, cam timing gear, head gasket, TTY bolts and everything else the dealer would toss at me. Purchased a R12 reclaim 1 hp refrigerant kit from Vevor. Being a contractor and having many trades friends not one of my HVAC buddies had worked with R12 in years so rolled up the sleeves and did it myself. Did a lot of engine cleanup internally and externally. Doing it all myself with the help of GM EV division director, so a little slow with our busy traveling schedules. Should be back together soon and will post more pictures. Good news I still have the 92' 3FE and drivetrain with 60k on the clock if I ever need it, doubt it. Should be good for another 265,000 once this is all done.

View attachment 4193214

Wonder how many 3F equipped cruisers got scraped due to this gear glad you figured it out.

 

[smallv8]

Wonder how many 3F equipped cruisers got scraped due to this gear glad you figured it out.

It really is an Achilles' heel of the engine. I understand they used composite for sound deadening but I never heard warning signs of it happening and kept a bunch of my "expert" auto repair guys scratching their heads when I said it has timing "gears".

Found this video of process on a 89 troopie 3F spinning its timing gear on its arbor, doing exact same process minus dropping the mechanical fuel pump that runs off the cam:

 

[jonheld]

Keep in mind that this is a very rare occurrence. In the last 20 years yours is the second or third confirmed case between the FJ62 and FJ80.

 

[smallv8]

Keep in mind that this is a very rare occurrence. In the last 20 years yours is the second or third confirmed case between the FJ62 and FJ80.

I figured as much. Started tearing down the 3FE and said to myself, @jonheld

 

[smallv8]

I figured as much. Started tearing down the 3FE and said to myself, @jonheld

Mentioned "composite timing gear"

 

[river rain]

nice truck

 

[smallv8]

Soooo, made a managerial decision and decided to pull the original tired 3FE and put in the 60k mile baby girl. Going to rebuild the 270k engine over winter for a contingency plan. Noticed the strike to set oiler for cam gear wasn't pumping well and dizzy bearings are rough. Needs full overhaul. Miss driving her, daily.

 

[kmcandelario]

I’m having this same issue but I think my fuel pump is just out. With and +B bridged and key on I can’t hear a difference when it isn’t bridged so I’m assuming either electrical or FP

 

[kmcandelario]

I’m having this same issue but I think my fuel pump is just out. With and +B bridged and key on I can’t hear a difference when it isn’t bridged so I’m assuming either electrical or FP

My apologizes on the horrible spelling.

With FO and +B bridged*