tuonokid
Active member
Too warm today for grinding and welding so I decided to go ahead with the cold feed to the cotton air filter I'd thought about earlier when I fitted the filter.
I'd found this in my Mothers garage last week It's the original air feed for the Puma. The pipe was no good to me as it's not flexible enough but the horn at the end was just what I wanted.
There looked to be just enough room to site the feed at the end of the rad grill.
So took the bumper off and this is where I wanted the air horn, right next to the bracket for the N/S headlamp drain bracket
I needed to raise the position of the trumpet slightly as it was being masked by the bumper bib so I ground a bit off the front panel (yellow primer) and fitted a 6mm rivnut in the rad support cradle to mount a fixing bracket off.
These are the components I used; The Puma air horn, some thin walled alloy tube and a wire reinforced flexible pipe. I luckily had those already. The alloy pipe was a tight push fit into the air horn and the flexi pipe was a nice sliding fit over the alloy
I made a fixing bracket out of alloy and fastened it onto the rivnut on the rad support bracket with a 6mm bolt.
I realised at this point that the horn would be in the way so I ground off the tang that holds the horn in position and then rotated it forwards a bit. I also fitted rubber trim to the chassis rail and airbox support bracket to stop it chafing the flexi pipe
I also had to file of part of the flange on the air horn to avoid contact with the power steering cooler
This is the route of the flexi pipe. I will cable tie the hose to the airbox support bracket when I'm happy with the positioning of it
I need to make an end plate now to hold the pipe and keep cold air around the filter.
This is the location of the cold air feed behind the grill with the bumper back on.
The first two photos above are the air funnel I made out of sheet alloy and the alloy tube I'd used at the other end of the air feed with some rubber trim just to tidy up and stop it rattling. The third photo was the unit assembled showing the fixing bolt through the base of the filter (I blew out the filter with the airline after I drilled it to get rid of any swarf)
I managed to find a rubber seal so I could get rid of the inner tube I'd used previously.
The last few photos just show the routeing and how everything fits together. The only thing missing is a jubilee clip to hold the air pipe under the airfilter.
This shows the top of the filter neatly avoiding the back of the headlight, the corner of the battery box and the bonnet stay.
Wasn't happy with the pipe run past the air box mount so I dismantled it again and ground off the edge of mounting as this (after painting)
I'd found this in my Mothers garage last week It's the original air feed for the Puma. The pipe was no good to me as it's not flexible enough but the horn at the end was just what I wanted.
There looked to be just enough room to site the feed at the end of the rad grill.
So took the bumper off and this is where I wanted the air horn, right next to the bracket for the N/S headlamp drain bracket
I needed to raise the position of the trumpet slightly as it was being masked by the bumper bib so I ground a bit off the front panel (yellow primer) and fitted a 6mm rivnut in the rad support cradle to mount a fixing bracket off.
These are the components I used; The Puma air horn, some thin walled alloy tube and a wire reinforced flexible pipe. I luckily had those already. The alloy pipe was a tight push fit into the air horn and the flexi pipe was a nice sliding fit over the alloy
I made a fixing bracket out of alloy and fastened it onto the rivnut on the rad support bracket with a 6mm bolt.
I realised at this point that the horn would be in the way so I ground off the tang that holds the horn in position and then rotated it forwards a bit. I also fitted rubber trim to the chassis rail and airbox support bracket to stop it chafing the flexi pipe
I also had to file of part of the flange on the air horn to avoid contact with the power steering cooler
This is the route of the flexi pipe. I will cable tie the hose to the airbox support bracket when I'm happy with the positioning of it
I need to make an end plate now to hold the pipe and keep cold air around the filter.
This is the location of the cold air feed behind the grill with the bumper back on.
The first two photos above are the air funnel I made out of sheet alloy and the alloy tube I'd used at the other end of the air feed with some rubber trim just to tidy up and stop it rattling. The third photo was the unit assembled showing the fixing bolt through the base of the filter (I blew out the filter with the airline after I drilled it to get rid of any swarf)
I managed to find a rubber seal so I could get rid of the inner tube I'd used previously.
The last few photos just show the routeing and how everything fits together. The only thing missing is a jubilee clip to hold the air pipe under the airfilter.
This shows the top of the filter neatly avoiding the back of the headlight, the corner of the battery box and the bonnet stay.
Wasn't happy with the pipe run past the air box mount so I dismantled it again and ground off the edge of mounting as this (after painting)