Aussieveedubbers · Tech Talk

Drilling and tapping a bolt

https://forums.aussieveedubbers.com/threads/13587/drilling-and-tapping-a-bolt

Adam_C ·

the inlet manifold stud has snapped in the 1500

what side is the stud so i can get a replacement bolt, what size tap will i need to get it out

do i have any other choices, EZE-OUTS havent worked (plus im a bit scared to use them) and there isnt enuff to get and nut and mig it so it can b unscrewed

cheers
adz

KruizinKombi ·

You're going to have to go hard with the Ezy-out. You may be able to apply some gentle heat with an oxy to help loosen it a little, and use the ezy-out while its still warm.

Couldn't tell you the thread pitch, but I think they're 8mm.

11CAB ·

8mm x 1.25mm

fuz ·

drill a 3 (1/8) pilot hole up the centre of the sheered bolt for the ezyout/auger to get a hold and use a much smaller auger so that you dont have to stress about destroying the threads 8mm x 1.25 is easy to tap cos the pitch is not to steep or too shallow but its hard to redraw when you catch it with the easy out :P

easy out - hard in

vw54 ·

Adam

Did you say 1500 Single port engine as the inlet stud is a 6 mm.

the later 1600 twin port is a 8 mm stud

Go to the wreckers and get a S/H stud and fit that with some locktite better than jaming a bolt in there.

From memory the stud holes go through into the rocket area so you might be able to un screw the stud from the inside.

type82e ·

or go to your local vw head place and get them to do it they do it all the time and wouldnt charge much?
marcel

vw54 ·

Would be good if you live in Lismore !!!

type82e ·

there must be places in sydney
or any machine shop should be able to do it?
marcel

duncombemu ·

Dave is right!

The thread is 6 X 1.0

Mark