front bumpers

jeremy · #1 24th October 2006, 08:43

How has anyone fixed the bumpers in place,weld or bolted in?Cheers

Rich · #2 24th October 2006, 10:37

We've not fixed them in place yet, but I think we will go with bolts. The spot light bracket bolts go through where the bumpers slide into the chassis. They will be able to double up for bumper mounting.

jeremy · #3 24th October 2006, 10:43

thanks for that,did you use self tappers for you brackets?if so what type.Just went to mount the fuel level sender supplied by marlin,it has 5 holes and the tank has six,wwhat did you do re this?cheers jeremy

Patrick · #4 24th October 2006, 11:03

Our Marlin supplied tank didn't have any holes, we did that ourselves:

http://www.msportster.co.uk/detail.asp?cat=7&offset=180

Needed a load of gasket sealer to stop it leaking. Nice and solid now though!

Some of the other builder have used much more elegant solutions. Have a look through some of the other build sites

Rich · #5 24th October 2006, 18:47

The spot light brackets are mounted with normal countersunk bolts.

The holes in the chassis were drilled then taped. See news item on the 28/07/2006 http://www.msportster.co.uk/index.asp?offset=10

Patrick · #6 24th October 2006, 21:02

Our thoughts on bolt vs weld is that the bumpers primary function is as a collapsible element should you have an accident. If its only bolted then the theory goes the bolt snaps and bumper is pushed into the chassis absorbing some of the impact energy.

If you weld it its much more solid so more energy is transferred in the rest of chassis causing more damage.

That is my uneducated theory though.

jeremy · #7 24th October 2006, 21:21

Thanks guys, I had been thinking about crash impact earlier and had thought along the same lines;bolts it is!