armytruck63
Active member
- 1,663
- 10
- 38
- Location
- Redlands, CA
Though I've seen the plugs installed both ways, I believe concave side out ) is correct. You want pressure building up from ice to push the plugs out. If the plugs were installed concave side facing the block (, pressure from the ice would tend to wedge the plug in more tightly against the sides of the holes. You don't want that to happen.
Anyone with more experience, please chime in. You might want to call an auto or truck repair business in the area and ask them. Being in Minnesota, I'm sure they've had to do this job before.
Anyone with more experience, please chime in. You might want to call an auto or truck repair business in the area and ask them. Being in Minnesota, I'm sure they've had to do this job before.