Guitarl's Rat Ranger Pickups

Discussion in 'THE OTHER TALK' started by GuitarlCarl, Aug 23, 2016.

  1. LukeTheJoker

    LukeTheJoker Moderator

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    Much easier for them to do it on their lift than you at home on your back with a grinder...

    Luke.
     
  2. GuitarlCarl

    GuitarlCarl

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    EXACTLY!

    Carl.

    sent from a banana phone...
     
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  3. GuitarlCarl

    GuitarlCarl

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    Ha, looking back here, I almost forgot. The shackle on one side broke a day after the LMS worked on the exhaust. So I drove it back over to them to finish what I had started. So now after driving around for 3 weeks it's fine. I'd forgotten it even had any issues!

    Carl.

    sent from a banana phone...
     
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  4. GuitarlCarl

    GuitarlCarl

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    Blew my motor today.
    I don't know, it turns over but no catching. Was cruising down the highway a 100 miles from home... Got it towed to a local yard and I'll come back and get it this weekend. Sitting in a McDonald's right now waiting for my youngest boy to come get me in my other truck. Argh!!



    sent from a banana phone...
     
  5. Falstaff

    Falstaff

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    You don't suppose you busted the timing chain/belt?
     
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  6. Duchess

    Duchess

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    Yeah, maybe a belt/chain or a tensioner let go? Did the starter spin with a quicker sound? I would think that's probably a non-interference engine, so if it is a chain/belt, after replacing that and the tensioner (and it would probably be a good idea to replace the water pump if it's driven by the t-chain/belt and hasn't been done recently), you should be good.
     
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  7. GuitarlCarl

    GuitarlCarl

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    Took the front of my motor off to see what broke today. Ford 4.0 V6[​IMG] sheared the key off the back of the timing gear and broke the bolt that attaches it to the cam...[​IMG] So weird. What caused the failure? It's got a lot of miles and the valves rattle some but when you turn the motor over there is no rattling now... You'd think if it blew a valve you'd hear it now even though the cam isn't turning. It looks like the top of the motor has to come off just to make sure... Argh!

    Carl.

    sent from a banana phone...
     
    Last edited: Feb 28, 2017
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  8. Falstaff

    Falstaff

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    The valves could have bent slightly. But I don't know what would have caused the pin to shear.
     
  9. Duchess

    Duchess

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    Bearings froze up on a tensioner or something that could have caused the timing chain to stop catastrophically and the weakest point was the cam keyway? Maybe the bolt backed out on the cam sprocket? if there was work done fairly recently (maybe the last owner) that involved removing that bolt, it could have been undertorqued or is a yield bolt (though probably not) and should not have been reused. On Subaru EJs, the usual listed spec for the crank pulley torque is (or was, at least) about 40 ft/lbs under what it should really have been and, when torqued to the false spec, would cause the same failure as you've seen here, but with the crank pulley (somewhere in space, probably orbiting an asteroid by now there is a cloud of swearing from the day I discovered this for myself).

    I don't know the specifics of that engine, but I think it's a non-interference engine, so your valvetrain should be fine providing the keyway in the cam is reusable so you don't have to replace it (looks like it is in the photo).
     
  10. us56456712

    us56456712

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    Bore it out through the water jacket and out the outer sidewalls, sleeve it with chrome Packard Merlin or Rolls Royce Merlin sleeves that have exhaust and intake ports bored into them, weld the valves shut, toss out the cam, timing gear, chain and make it into an air cooled 2 stroke racing engine. Use a stainless jail house toilet for a carb with a leaf blower to atomize and supercharge the intake. Duct tape garbage bags of ice around the leaf blower for a cold air intake. I would then suggest you mount it to a modified bicycle and take it to the Pikes Peak Hill Climb. You don't need no stinkin' cam. I never take my own advice.
     
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  11. GuitarlCarl

    GuitarlCarl

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    Note: this is NOT the 4.0 SOHC
    I have the older 4.0 OHV pushrod engine
    a better motor according to some forums...
    Hmm.

    Carl.
     
  12. Duchess

    Duchess

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    Yes, the cam is in the block in the pic. I don't know these particular engines, but there are some features with pushrod engines that are better than OHC, it just depends on what you want the engine for. They're mechanically simpler, smaller for packaging, lower in weight and cg (and can be gear-driven more easily—no timing chain or belt to stretch or break). OHC offers better valve control at higher rpms and a little more leeway in designing optimal valve angle and rpm range tuning. To make up for the general high rpm weaknesses, usually the OHV cams and heads are tuned for better low rpm breathing, which is where most people want the punch in daily driving, anyway.
     
  13. GuitarlCarl

    GuitarlCarl

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    This 4.0L pushrod V6 started out as a lowly 2.9L
    Ford bored and stroked it as far as they could ending up as the 4.0L and yes many folks believe the OHV is a better motor that the SOHC. I'm not a real mechanic but I've read a lot today and I have a Haynes repair manual for this truck. I'm glad this is the simpler motor. Tentative plans are to open up the top end, and find out why the bolt broke. I'm betting a bent pushrod.... we'll see.

    Carl.
     
  14. us56456712

    us56456712

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    I had one of those, in 2 wheel drive. I don't remember the year. I got it from my Mother, who bought it used. My parents took it to Alaska. I sold it because it went through starters and batteries each year. No one could figure out why. I sold it to a guy that was going to put a V8 in it.
     
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  15. GuitarlCarl

    GuitarlCarl

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    Motor is dead. Cam is melted into the bearings. Now this could be repaired, but not for the peanuts I have in this truck now...So I'll be looking for a motor.

    Carl.

    sent from a banana phone...
     
  16. Falstaff

    Falstaff

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    Do you have a pick n pull or u part it in your area?
     
  17. GuitarlCarl

    GuitarlCarl

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    Yeah but I'm thinking donor car/truck cuz I may need the computer too if I grab a different motor,
    5.0 dreams

    Carl.

    sent from a banana phone...
     
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  18. LukeTheJoker

    LukeTheJoker Moderator

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    :confused:

    Hope you find an easy swap solution!
     
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  19. Bicycle808

    Bicycle808

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    Trucks are rad. If I had a 90s Ranger, I'd be tempted to go with the 302 or a turbo 2.3 four like they had in the Turbo T-Birds, SVO mustangs, etc....

    But, around here at least, you can find decent rwd rangers with NA 2.3 fours for so cheap, I think if I blew up a Ranger, I'd just hop on CL and grab another one....

    Fun trucks, no matter what's under the hood, though. Compact pickup trucks are incredibly useful tools to have around, and can be fuel-efficient enough to make decent daily drivers, too. I can't convince myself to move on from my Taco, b/c it's just too danged practical.
     
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  20. GuitarlCarl

    GuitarlCarl

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    I'm pretty sure I've found another one with a couple issues, but my old one is now the donor. So it's all good.

    Carl.
     
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