Heater hose welding
#1
No Sleep
Thread Starter
Heater hose welding
I was wondering has anybody welded the heater hose outlet on the rear iron shut? Also the coolant line from the rear iron that passes through the throttle body to the water pump.
Trending Topics
#10
Resident Know-it-All
iTrader: (3)
That said I have successfully welded irons in several cases. It can be done if done properly.
#11
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
1/2" NPT sounds about right for the big heater hose connection, but the casting in that area is VERY thin to use such a large tapered tap.
Actually if using NPT taps on the irons, there is always a significant risk of cracking them. Go very, very, very slow, and use lots of lube (that's what she said!). Turn the tap only about 1/8 to 1/4 at a time, back it out, blow off with air, then go in again for another slight turn. It will take a long time. But you MUST go slow. A friend tried the same trick on his FDs rear iron, didn't go slow enough, and cracked the rear iron upper nipple with the 1/4 NPT tap. The only recourse was to thread in a 1/4" NPT pipe plug, then weld around the area.
I show the tapping of the rear iron in this video:
http://www.youtube.com/watch?v=v-0Yl_Jlx1w
#12
Red Pill Dealer
iTrader: (10)
Take a couple of 1-2-3 blocks (or any nice, thick, precision ground pieces of anything handy), a large c-clamp, and clamp them tightly across the iron where you're tapping for the plug. It will help immensely in reducing the chance of cracking.
Be very careful when installing the plug. Over tightening the plug can also cause the iron to crack because of the taper. I've also seen this on aluminum trans-axle cases that use NPT instead of a gasket/flange bolt.
Be very careful when installing the plug. Over tightening the plug can also cause the iron to crack because of the taper. I've also seen this on aluminum trans-axle cases that use NPT instead of a gasket/flange bolt.
Thread
Thread Starter
Forum
Replies
Last Post
Turblown
Vendor Classifieds
12
10-17-20 03:25 PM