ive lost an engine stud for the manifold / header...grr...so ill just replace it with a bolt.. can anyone tell me the correct size and length to go into the block?..i really do not want to cross thread and have to hellacoil my block

thanks in advance,

Paul

 

cmon..someones gotta know this

 

Well it fits a 14mm wrench...

Let me take a guess Id say its 12mmX1.5mm ?

Which one you need? I got some old rotor housings out here, i can mail one to ya, if I can get it to come out.. Are you talking about the studs you need?

 

The axle is 12mmx1.5, and the spark plugs too I'm pretty sure, so it might make sense that the engine is as well.

 

ya..the stud is what i need,,but people have told me a bolt will do the trick.....how long you think..1"?

12 x 1.5 mm threads then

hmmm..

mike, thanks for the offer..i might take you up on it....
i was at the wrecker today..all they had was a couple of 79's..i wasnt about to pull off the thermal reactor...ugh

 

I have bought a shitload of bolts and nuts here lately, and I know its a coarse thread, and i know its a 12mm , so I place game on it being 12mm X 1.5 mm thread.. No ever how long you need is up to you.

 

its a racing beat header..with mazda gasket..im gonna head out and pick up some bolts in a bit...i just dont want to buy the wrong ones..and im tired of my car making more noise up front than out the back

 

uh.. trust me. Don't do a bolt. They have studs in there for a reason. Studs are a lot better at holding ridiculous amounts of force, whereas bolts are already tensioned tight outwards when you tighten them into the threads.. so it can hold a lot less than a stud can.

 

Heres a little picture

 

ok...grrr...so..hmmmm....can you buy a new stud from like autoparts stores.....?

and as for the bolt stress..the other 3 studs are just fine...i really cant see the harm in using a bolt (no offence to anyone)

mike..thanks for the pic....now wheres that tape measure so i can measure my screen

 

Im guessing 2 1/8" long, theres 1 1/4 sticking up out of the block...

 

k..ill see what i can find in the bolt section of good ol canadian tire

so i guess in conclusion, i need a bolt 14 mm head x 1.5 thread x 2 18 inches long or so...

only thing thats screwing with my head..is the 12mm thing

 

DUDE,

(Once again, I am repeating myself..)
Take another one off the engine and go to the store and match it.

It's not difficult.

 

Vohaul,

CT might not have it... they'll probably only have 12mmx1.75, which is the common size.

What you should do is find a *good* hardware store, preferably a nut&bolt/industrial fastener specialist. This means not CT or Home Depot, but the kind of place where industrial contractors and people go to get their stuff. Typically these places are unknown to the average consumer and out in the middle of an industrial park, but they are absolutely fantastic compared to CT and the personel there are usually pro's who can answer any question you might have and give you good advice.

They'll have studs that are like 6 feet long, and they'll be able to cut you some of whatever length you ask for.

I'm sure there are also automotive stores that could find you what you need.