Missing pipe from top side of expansion tank

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Post Reply
Dodgey
Supreme Being
Posts: 1057
Joined: Fri Jun 10, 2011 3:48 pm
Location: Taunton
Contact:

Missing pipe from top side of expansion tank

Post by Dodgey » Sun Sep 14, 2014 5:13 pm

I've noticed my expansion tank has a small outlet on the top left - pointing inwards towards the bonnet area - it has nothing on it. Considering it's a pressurised system is it supposed to have something on it? I'm guessing it's sealed as when I removed the tank cap there was plenty of pressure in it.
http://www.solarcampersolutions.co.uk Solar panel solutions for campervans
User avatar
g8dhe
Supreme Being
Posts: 10754
Joined: Sun Apr 13, 2008 10:06 pm
Location: Worthing, West Sussex.

Re: Missing pipe from top side of expansion tank

Post by g8dhe » Sun Sep 14, 2014 5:18 pm

Is it the overflow pipe for when the pressure cap releases due to over pressure, the pipe just directs the water downwards rather than across the ABS system if you have one fitted !
I think some people have put a bottle under it in order to be able to see if anything gets released.

Or is it the stub (drilled out) that is used on the 2l where the bleed hose connects, as they don't have the same problems as the diesel and V6 which need manually bleeding.
hose 15-383 below http://lushprojects.com/bongopartsmk2/c ... 1of02.html
Last edited by g8dhe on Sun Sep 14, 2014 5:23 pm, edited 1 time in total.
Geoff
2001 Aero V6, AFT, full side conversion.
Dodgey
Supreme Being
Posts: 1057
Joined: Fri Jun 10, 2011 3:48 pm
Location: Taunton
Contact:

Re: Missing pipe from top side of expansion tank

Post by Dodgey » Sun Sep 14, 2014 5:20 pm

No - it's another pipe - top left of the tank, not on the pressure cap.

Image
Last edited by Dodgey on Sun Sep 14, 2014 5:25 pm, edited 1 time in total.
http://www.solarcampersolutions.co.uk Solar panel solutions for campervans
User avatar
g8dhe
Supreme Being
Posts: 10754
Joined: Sun Apr 13, 2008 10:06 pm
Location: Worthing, West Sussex.

Re: Missing pipe from top side of expansion tank

Post by g8dhe » Sun Sep 14, 2014 5:24 pm

see edit !
Geoff
2001 Aero V6, AFT, full side conversion.
Dodgey
Supreme Being
Posts: 1057
Joined: Fri Jun 10, 2011 3:48 pm
Location: Taunton
Contact:

Re: Missing pipe from top side of expansion tank

Post by Dodgey » Sun Sep 14, 2014 5:26 pm

See edit :-) - must be a stub
http://www.solarcampersolutions.co.uk Solar panel solutions for campervans
User avatar
Simon Jones
Supreme Being
Posts: 9341
Joined: Mon Aug 29, 2005 3:34 pm
Location: Salisbury (ish), Wiltshire

Re: Missing pipe from top side of expansion tank

Post by Simon Jones » Sun Sep 14, 2014 6:50 pm

This is how it looks when fitted to 2 litre:

Image
rita
Supreme Being
Posts: 3286
Joined: Tue Sep 15, 2009 7:11 pm

Re: Missing pipe from top side of expansion tank

Post by rita » Sun Sep 14, 2014 7:08 pm

Dodgey,Its a blank stub, most if not all 2.5td/v6 have this make up.
Post Reply

Return to “Techie Stuff”