common gearbox problem?

Technical questions and answers about the Mazda Bongo

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ex25er

common gearbox problem?

Post by ex25er » Fri Oct 31, 2008 5:59 pm

The fact sheet says this is 'normal bongo behaviour': gearbox not wanting to change up into top, after startup on a cold morning.

Does 'normal' mean that it's ok and I should just drive round the block a few times before hitting the dual carriageway, or does it mean it's a common bongo problem that needs fixing??

I've checked the ATF levels using the suggested method, and the level actually reads at the bottom of the twist on the dipstick - about an inch and a bit above max! ....But I've had the bongo for 5 months, done a fair few miles and it's not caused me any problems until now.

The fluid's nice and pink and clean, with no crap in it. Does anyone know how much, in volume, an 'inch and a bit' would translate to? - I'm going to try to suck it out using a syringe and tube, and what would be the implications of having an overfilled box anyway?


any advice welcome.


Phil
Veg_Ian

Re: common gearbox problem?

Post by Veg_Ian » Fri Oct 31, 2008 6:12 pm

Does 'normal' mean that it's ok and I should just drive round the block a few times before hitting the dual carriageway, or does it mean it's a common bongo problem that needs fixing??
All autoboxes need the tranny fluid to warm up before the torque convertor can lock up in top gear. Yes it's normal.
ex25er

Re: common gearbox problem?

Post by ex25er » Fri Oct 31, 2008 6:24 pm

Thanks Ian

Just read this post:

http://www.igmaynard.co.uk/bongo/forum/ ... 7231287423

also posted this afternoon, which suggests I'm not alone, so it's round the block a few times first then!

Still curious about the level though. It's done at least 3000 miles like that.

Phil
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dandywarhol
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Re: common gearbox problem?

Post by dandywarhol » Fri Oct 31, 2008 7:10 pm

If it's that high (after measuring it on level ground, warmed up and idling in "D") then I'd drain some off. Too high will cause the oil to froth and glaze the clutch plates in the 'box :shock:
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ex25er

Re: common gearbox problem?

Post by ex25er » Fri Oct 31, 2008 7:24 pm

hmmmm...

the fluid on the dipstick did appear to be a bit bubbly. Will get on it tomorrow.

Thanks

Phil
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Re: common gearbox problem?

Post by scanner » Fri Oct 31, 2008 7:28 pm

ex25er wrote: so it's round the block a few times first then!

It won't warm up any quicker driving around the block, in fact it will probably take longer and just waste fuel.

Get out on the Dual Carriageway and it will soon warm up and lock up.

That's what I do, it doesn't do any harm.
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lizard
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Re: common gearbox problem?

Post by lizard » Fri Oct 31, 2008 10:54 pm

ex25er wrote:The fact sheet says this is 'normal bongo behaviour': gearbox not wanting to change up into top, after startup on a cold morning.

Does 'normal' mean that it's ok and I should just drive round the block a few times before hitting the dual carriageway, or does it mean it's a common bongo problem that needs fixing??

I've checked the ATF levels using the suggested method, and the level actually reads at the bottom of the twist on the dipstick - about an inch and a bit above max! ....But I've had the bongo for 5 months, done a fair few miles and it's not caused me any problems until now.

The fluid's nice and pink and clean, with no crap in it. Does anyone know how much, in volume, an 'inch and a bit' would translate to? - I'm going to try to suck it out using a syringe and tube, and what would be the implications of having an overfilled box anyway?


any advice welcome.


Phil
Hello

I've sucked mine out with a pella/pealler/peller (never can rember how to spell it) pump. Works great. :)
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missfixit70
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Re: common gearbox problem?

Post by missfixit70 » Fri Oct 31, 2008 11:05 pm

None of the above - Pela pump :wink:
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