bongo trouble

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Post Reply
S Jacobs

bongo trouble

Post by S Jacobs » Mon Sep 14, 2009 4:27 pm

After a damp night my bongo Mis-fires and white smoke comes out the back end, I had the glow plugs checked and they are fine any thoughts.

S Jacobs (worried bongo owner)
bigdaddycain
Supreme Being
Posts: 10637
Joined: Fri May 13, 2005 11:58 am
Location: Ince Lancs

Re: bongo trouble

Post by bigdaddycain » Mon Sep 14, 2009 4:31 pm

Engine/pump timing out, Fuel starvation to the pump causing the pumps timing not to operate correctly, Low engine compression Water/petrol in the fuel
ビッグダディケイン RIP Big Bank Hank (Imp the Dimp) 1957-2014
bigdaddycain
Supreme Being
Posts: 10637
Joined: Fri May 13, 2005 11:58 am
Location: Ince Lancs

Re: bongo trouble

Post by bigdaddycain » Mon Sep 14, 2009 4:33 pm

I just saw the "damp night" bit...Most likely condensation evaporating out of the exhaust...So that'll be steam most probably...Nothing to worry about if the "smoke" diussapears when your bongo has warmed up a bit... :wink:
ビッグダディケイン RIP Big Bank Hank (Imp the Dimp) 1957-2014
francophile1947
Supreme Being
Posts: 11354
Joined: Mon Dec 18, 2006 6:15 pm
Location: Norwich

Re: bongo trouble

Post by francophile1947 » Mon Sep 14, 2009 5:22 pm

It's classic symptoms of glow plug failure. Did they just test them for continuity of the circuit? If so, they may not be heating properly and there have been a few nippy mornings lately. Does it clear quickly after starting?
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
bigdaddycain
Supreme Being
Posts: 10637
Joined: Fri May 13, 2005 11:58 am
Location: Ince Lancs

Re: bongo trouble

Post by bigdaddycain » Mon Sep 14, 2009 9:21 pm

I'd disregarded dodgy plugs as Mr Jacobs never mentioned having trouble starting the bongo john... I've only had to have my plugs replaced just the once, i never noticed the white smoke/steam issue when "they were on their way out" All i noticed was a stumble at first, then longer and longer cranks starting when cold, they do seem to fail quite quickly though, they did in my case.. :?
ビッグダディケイン RIP Big Bank Hank (Imp the Dimp) 1957-2014
francophile1947
Supreme Being
Posts: 11354
Joined: Mon Dec 18, 2006 6:15 pm
Location: Norwich

Re: bongo trouble

Post by francophile1947 » Tue Sep 15, 2009 11:42 am

bigdaddycain wrote:I'd disregarded dodgy plugs as Mr Jacobs never mentioned having trouble starting the bongo john... I've only had to have my plugs replaced just the once, i never noticed the white smoke/steam issue when "they were on their way out" All i noticed was a stumble at first, then longer and longer cranks starting when cold, they do seem to fail quite quickly though, they did in my case.. :?
Anybody's guess Ste :D I was just wondering if the damp mornings were also colder and the white smoke was unburnt fuel, due to the misfire. I had an old Fiat Uno that started instantly but misfired and smoked for a few seconds. I checked the glow plugs for continuity and they appeared fine, but when I removed them, it was obvious that three of them weren't getting up to full temperature - new plugs sorted it :D
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
User avatar
dandywarhol
Supreme Being
Posts: 5446
Joined: Mon Dec 19, 2005 10:18 pm
Location: Edinburgh

Re: bongo trouble

Post by dandywarhol » Tue Sep 15, 2009 1:11 pm

does the glowplug relay click - behind the starter battery.
Whale oil beef hooked
Renault Lunar Telstar
Yamaha TD1C 250, Merc SLK200, KTM Duke 690
Post Reply

Return to “Techie Stuff”