Back on the Road!

[Laxdad32]

Been gone from the forums for a long time. Life went a few different directions, but I am finally back to my Bronco's. After a few weekends of work, I am excited that I got my 75 out on the road for the first time in 15 years! Still have a few more minor issues to address, and then see if it is ready for the market.

 

[LUBr LuvR]

Looks great, and must be an even better feeling for you. Bronco looks happy to see the light of day. Congrats!

 

[Tiko433]

I love how original it is ! Congratulations!

 

[Laxdad32]

Looks great, and must be an even better feeling for you. Bronco looks happy to see the light of day. Congrats!

Great feeling, been a long time coming. Thanks for the congrats!

 

[Laxdad32]

I love how original it is ! Congratulations!

This one is very original, other than the front tow setup and the hitch that is on the rear. Only 50800 original miles, as well. Almost made me nervous having it on the road.

 

[904Bronco]

Welcome and thanks for sharing...

 

[Laxdad32]

New 235/75 R15 tires, got some coolant leaks fixed, new plugs and wires, and a new heater valve. Getting closer. Started having a slight misfire, and sounds like a lifter tic, so will be looking into that this weekend. Any advice on valve train diagnostics and repair?

 

[blade]

Pull the valve covers and look everything over. My 74 was parked for a long time and had a dead cylinder. When I removed the valve cover I found a pushrod with the ball on the end smashed flat. I guess the valve was stuck and it hammered it.

 

[Laxdad32]

Pull the valve covers and look everything over. My 74 was parked for a long time and had a dead cylinder. When I removed the valve cover I found a pushrod with the ball on the end smashed flat. I guess the valve was stuck and it hammered it.

I was planning on pulling valve covers this weekend, hoping it will be something simple. I know sitting for that long causes some issues, for sure.

 

[green61bug]

That is one good looking bronco. Congrats on catching the bug again!.

 

[Steve Tool]

glad to see another bronco on the road again, I went thru the same with my ' 74 . It stayed in storage for 8 yrs. and I finally pulled it out and started its transition to life again, Marvel mystery oil is the key when you get those valve covers off, just soak everything down push rods, springs, lifters and let it soak, then when you start getting into the tic problem it will be easier to pull everything apart and inspect, sometimes the oil will help free up a problem from setting up, also, watch for scale in your gas tank, I had to pull both tanks and chemical steam them, must have went thru 5 sets of inline fuel filters before I saw what it was, burn non-ethanol gasoline as well and yes I put a capfull of Marvel Mystery oil in my gas tank at every fill up, that stuff is great, good luck and good to see you on the road with her again,

 

[Laxdad32]

Well, figured out the miss and the tic. 2 rockers turned and not pushing on the valves. Pulled rocker arms, inspected pushrods, re-assembled, set torque on rocker nuts per ford procedure, started her up, and both rockers jumping around and popped off valves again. Rockers are very loose on valve and pushrod, thinking collapsed lifters? Didn't really want to pull intake manifold, but I guess that's next. Oh the joys of working on stuff that has sat for so long lmao

 

[eb-nutt1]

Could be the rocker studs have pulled out heads...check that before removing the intake.

Brian

 

[Laxdad32]

Could be the rocker studs have pulled out heads...check that before removing the intake.

Brian

Looks like a couple studs have pulled out, 3/16" to 1/4" further than the rest. Is there any fix other than pulling heads and taking to a machine shop to fix? Also, what would cause this on a completely stock 50k mileage engine?

 

[bulletpruf]

Looks like a couple studs have pulled out, 3/16" to 1/4" further than the rest. Is there any fix other than pulling heads and taking to a machine shop to fix? Also, what would cause this on a completely stock 50k mileage engine?

That's a beauty!

As for the studs, that engine should have pressed-in studs so about the only think I know to do is to remove the head and bring it to a machine shop, where they would either drill a hole through the boss and stud and pin it in place or install screw-in rocker studs.

You can pin it yourself without removing the head, but that every time I try to do something like that, I regret it almost immediately and vow to never do it again. Shouldn't take you more than 45 minutes or so to remove a cylinder head.

Here's a hack job - WARNING - SHIVVERLAY CONTENT -

Good luck with it.

Scott

 

[eb-nutt1]

My dad fixed a boatload during his automotive career(45+ years, Ford, Chrysler cert tech) by pulling the old studs, and driving in new studs with red loctite applied on the bases...the studs pulled out because the valves probably stuck...the press in studs were a common issue on mid 70's ford.

Brian

 

[sprdv1]

Looking good.. Don't sell it, you may regret it

 

[sprdv1]

Well, figured out the miss and the tic. 2 rockers turned and not pushing on the valves. Pulled rocker arms, inspected pushrods, re-assembled, set torque on rocker nuts per ford procedure, started her up, and both rockers jumping around and popped off valves again. Rockers are very loose on valve and pushrod, thinking collapsed lifters? Didn't really want to pull intake manifold, but I guess that's next. Oh the joys of working on stuff that has sat for so long lmao

yes sir, lots of kinks to work out

 

[romegadave]

That is a great looking Bronco!!!!