Pinz Manifold

[Boelt63A]

So I broke off a manifold stud and buggered it up a bit. I then took it to a local muffler shop who got the stud out and replaced it. They assured me the stud was in there just fine. That stud is now road debris somewhere. I am intent on fixing this myself and have the correct Timesert kit, but need to drill a the hole straight and square. This is the #3 cylinder. Any suggestions?

 

[dc3coyote]

Boelt I think you may be in for a project. Normally I would say use a magnetic drill press, I think you may have to just take it easy and be carefull.

 

[Boelt63A]

I was thinking about having a jig fabbed up to bolt in place on he existing stud with a tubular extension to keep the drill square to the cylinder head but that in itself might be a project. Pulling the engine and taking the head off would probably be best but I sure don't want to undertake that project!!

 

[FireFighterHill]

Is there any reason not to weld a stud in there?

 

[Boelt63A]

well if it breaks off again it may be a royal pain to get out is all. but actually no, aside from that I can't think of a good reason.

 

[O.D. Fever]

Build the little jig, a piece of 3/8" flat stock with a slot and a guide hole. You will be fine. Joe

 

[Boelt63A]

Joe, that is what I have been thinking . Sort of like an exhaust flange with a short section of tube over one hole to keep the drill bit straight. O could bolt it in place and use it as a jig.

 

[O.D. Fever]

You don't need the tubing. Rule of thumb is one times dia. is good for a temp. guide. Just position the guide over the hole and lock in place with a nut, then drill it. Tap it by hand, use aguide block if you need to. DO IT you will be fine.Joe P.M. me if you need more details. Joe

 

[Boelt63A]

So I fabbed up this little jig and it seems to have worked pretty good so far. You can see how far off the muffler shop was from where the hole should have been.

 

[FireFighterHill]

Id be pretty pissed off at that muffler shop.

 

[Boelt63A]

Yeah, I will probably have to have someone weld in that hole at some point. right now I need to see if the insert will even thread in.

 

[Boelt63A]

WEll tapped the hole and threaded in the insert. It looks pretty good and the manifold seems to have snugged up pretty good. We will see how it goes tomorrow when I drive it into work.

 

[Boelt63A]

Well it lasted 5 months. Now it is apparent that I need to have this welded up and retapped.

Anyone know what the cylinder head on a pinz is made out of??

I expect it needs TIG welded. Both places I checked with asked me what it was made of and I didn't know.