Ignition barrel jam (key ok but...)

Technical questions and answers about the Mazda Bongo

Moderators: Doone, westonwarrior

Locked
Fredanz
Bongonaut
Posts: 83
Joined: Thu Nov 17, 2005 5:10 am
Location: Christchurch, New Zealand

Ignition barrel jam (key ok but...)

Post by Fredanz » Wed May 20, 2009 12:42 am

Pretty cold weather in my part of NZ just now, (snowing today, briefly).

Tried to start the van yesterday after a week or so.
Key in ok, glow plugs light and go out. Turn to III to start, nothing.

Fiddled with footbreak, Park, steering, to no effect.

After a couple more attempts, I find that the dashboard lights are all staying on, even when I turn to 0 and remove the key completely. There is no spring resistance felt between II and III any more.

Disengaging the battery neg lead then reconnecting (with the key out) causes all the dash lights to come on and the glow plugs to light, just as if it the key had been left in, in position II.

WD40 - no good. Tapping gently with a hammer (as one does :wink: ) - no good. Fuses 9 (internal) and 9 (under bonnet) and 60a starter fuse all ok.

Undid cowling over ignition, nothing to be seen there - the "must be in Park" inhibitor working exactly as it should, and interacting with the key properly in every respect (e.g. preventing key removal at the right time, not allowing gear shift unless key in and turned, etc).

All the evidence points to a mechanical failure in the ignition barrel - possibly some kind of jam or break to whatever spring/rotation system is in there. Causing it to not turn the starter motor, nor to properly turn off any more.

Any ideas how I could deal with that, short of sourcing a full replacement (which, for me, means getting a professional to come and do it)? The ignition barrel doesn't look like something that could be readily disassembled or maintained.
User avatar
helen&tony
Supreme Being
Posts: 9869
Joined: Thu Nov 18, 2004 12:49 pm
Location: Bulgaria

Re: Ignition barrel jam (key ok but...)

Post by helen&tony » Wed May 20, 2009 4:18 am

Hi
I have not had internal locks freeze, but everything else gets frozen here ....my usual cure is warming it with a pocket blowlamp, a hot key, or in your case, where you can get a mains lead in the car without trailing in snow, a hairdryer might warm the lock....my bugbear is the sliding door getting frozen....in fact they all freeze shut, but the soft closer jams, and the contacts stay frozen for weeks
Cheers
Helen
In the beginning there was nothing , then God said "Let there be Light".....There was still nothing , but ,by crikey, you could see it better.
Fredanz
Bongonaut
Posts: 83
Joined: Thu Nov 17, 2005 5:10 am
Location: Christchurch, New Zealand

Re: Ignition barrel jam (key ok but...)

Post by Fredanz » Wed May 20, 2009 4:22 am

helen&tony wrote:Hi
I have not had internal locks freeze, but everything else gets frozen here ....my usual cure is warming it with a pocket blowlamp, a hot key, or in your case, where you can get a mains lead in the car without trailing in snow, a hairdryer might warm the lock....my bugbear is the sliding door getting frozen....in fact they all freeze shut, but the soft closer jams, and the contacts stay frozen for weeks
Cheers
Helen
Sorry, I gave the wrong impression. It's not cold enough to be a freeze (certainly wasn't yesterday when it first went wrong). Besides, it's turning ok, just not doing the right stuff when it turns.

Tried a hot key, just in case. No effect. The key turns really freely from position I to II and III, no resistance at all in either direction. Somethings gone in there I guess.
Locked

Return to “Techie Stuff”