Guide studs only on the early F's
destins 1964 fj40 FST restore thread
- Thread starter destin
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
That's interesting. I have nuts on mine (studs it came with were threaded, but I don't know if it was original). It seems like if you don't use nuts and torque them you have a chance for exhaust leak on cylinder numbers 1 and 6. Don't know why you wouldn't want to....
And, although no nut (or washer) is shown in the engine manual, the stud is clearly threaded for one...
someone must have replaced the stud at one time. it's only long enough to be flush with the intake.
as much as intake exhausts are a pita i don't think it's a big deal to put in a longer stud so you can tighten it down.
as much as intake exhausts are a pita i don't think it's a big deal to put in a longer stud so you can tighten it down.
So yours don't have threaded outsides like the figure shows?
The longer studs make it easier to get the gaskets on and aligned. I am missing my intake rings so I need all of the help I can get.
- Thread starter
- #2,006
hmmm
mine do not extend past the manifold mounts, the studs that is.
However, if it is better to get longer ones and torque them down now would be the time to do it...
Let me know guys!
Thanks
Idave, do you happen to have photos of your intake studs for peeps to see?
mine do not extend past the manifold mounts, the studs that is.
However, if it is better to get longer ones and torque them down now would be the time to do it...
Let me know guys!
Thanks
Idave, do you happen to have photos of your intake studs for peeps to see?
Just remember that mine is an F120. Maybe you guys with that extra 15hp need those studs to keep the manifolds from blowing off the head. 
- Thread starter
- #2,008
Just remember that mine is an F120. Maybe you guys with that extra 15hp need those studs to keep the manifolds from blowing off the head.
that is how mine looks on my f135...
Everyone keeps asking me if the studs broke off hehe
hmmm
mine do not extend past the manifold mounts, the studs that is.
However, if it is better to get longer ones and torque them down now would be the time to do it...
Let me know guys!
Thanks
Idave, do you happen to have photos of your intake studs for peeps to see?
Sure! Here's one with the manifold off looking at the underside of the head during the rebuild disassembly. Then, the left/front as it is today, and the right/rear. Notice, no exhaust leaks.
The stud is the same as the OEM studs used for F155 engines all across (no stepdown in size).I just don't understand why you would not want to torque those ends (torque spec for bolts are 37ft-lbs, btw)
Thanks for posting that picture of your studs, Foxfab.
So, you guys with the short studs 
hhmm: are the outside ends threaded like the figure shows? That picture comes from an engine manual dated 9/66, and everything in it matches my engine manufactured 9/64, except, maybe, this.
hhmm: are the outside ends threaded like the figure shows? That picture comes from an engine manual dated 9/66, and everything in it matches my engine manufactured 9/64, except, maybe, this.
Mine is the same as what fox shows in pic and the manual. threads on the end flush with the manifold, no nut to torque it down, guide only
I don't really see an issue using a longer stud or a bolt since it's a pita to keep manifold from leaking somtimes.
I don't really see an issue using a longer stud or a bolt since it's a pita to keep manifold from leaking somtimes.
Last edited:
dmaddox
SILVER Star
On my 63 - (A pic of before restoration) you can see I did not have any nuts either.
Yep, no nuts fellas.
Yep, no nuts fellas.
So, you guys with the short studs
The short studs / dowels are threaded also. They just don't extend past the manifold.
Only thing I can figure is that they must have had a reason for not anchoring it there (possibly stress during expansion/contraction). The manifolds are pretty active when heating / cooling. In the same vein.......you need the intake manifold rings or you will be fighting an intake manifold leak there eventually. 
The short studs / dowels are threaded also. They just don't extend past the manifold.
I'm worried about that. Don't know where I'd find the rings. If anyone has a spare set or can get me the dimensions...maybe I could have some manufactured.
Guess maybe I should take those nuts off? Heck. Who knows. Don't understand why your short studs are threaded on the outside with nothing to put on them.
- Thread starter
- #2,015
update
Motor is at PER being rebuilt
They said i could drop by periodically to take some photos etc
The place is like 7 blocks form my house
Motor is at PER being rebuilt
They said i could drop by periodically to take some photos etc
The place is like 7 blocks form my house
What would be cool would be videos of certain steps in the process...sort of like all the decent engine building videos on you tube...it would also be a great help for future F135 newbies 
- Thread starter
- #2,017
What would be cool would be videos of certain steps in the process...sort of like all the decent engine building videos on you tube...it would also be a great help for future F135 newbies
hehe, i dunno if they would let me do that
But it would be cool
Spoke with one of the main machinist/rebuilder dudes, he said he has prolly rebuilt 100's of old f motors
He does a lot for a guy near the coast i think Shane knows as well
dmaddox
SILVER Star
Spoke with one of the main machinist/rebuilder dudes, he said he has prolly rebuilt 100's of old f motors
...every old machinist will say that. . . .because I think the "F" in his sentence means f#$%in he he he
...at least that was the case with the engine builder back home in Montana.
update
Motor is at PER being rebuilt
They said i could drop by periodically to take some photos etc
The place is like 7 blocks form my house
Make a friend= pictures.
I think that was the case with my rebuilder, especially after the 4th time he had it apart....
Make SURE you get them to balance it, which means you'll need to give them your refinished flywheel and harmonic balancer, keys etc...
