No Compression it seems

Technical questions and answers about the Mazda Bongo

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TimW

Re: No Compression it seems

Post by TimW » Sun Aug 08, 2010 7:33 pm

Well i got it all back together, which was nice....not even any 'weeee' bolts left.
But alas, whilst it sounds fine, it wont start.
I guess it's worth mentioning i changed the fuel filter too, I thought that was self priming?

So any ideas on the none starting issue? I lined up the timing marks on both pulley wheels, got the belt tensioned correctly.

When it turns over it sounds fine no clanking or grinding, but I got a gut feeling it's a timing issue, What am I missing? (Forgetting)

T
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missfixit70
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Re: No Compression it seems

Post by missfixit70 » Sun Aug 08, 2010 8:49 pm

Usually ends up being a timing issue, but make sure glow plugs are getting voltage, fuel hut off solenoid is open, etc. I usually fill the fuel filter with fuel or injector cleaner before screwing it back on. Check you put the o ring on the bottom & not the top & that it is on tight with no leaks.
You can't polish a turd - but you can roll it in glitter.
TimW

Re: No Compression it seems

Post by TimW » Mon Aug 09, 2010 9:40 am

Does anyone know What do I need to check in terms of timing?

Thanks

T
TimW

Re: No Compression it seems

Post by TimW » Mon Sep 13, 2010 10:51 am

Well finally got the old girl running again :D well pleased.

All seems fine, but yesterday I heard a noise like a 2ltr lemonade bottle being rapidly opened and the power dropped right off.
:( I'm in no doubt its the turbo, but I'm not sure what to check. Does anyone know what hoses are worth checking?

I've started this journey so I'm not gonna quit now...

borrowed this (hope thats ok?)

Image

What do the tiny pipes that come of the metal elbow do? the platic joints on mine have broken and i'm not sure what their called for ordering purposes.
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Northern Bongolow
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Re: No Compression it seems

Post by Northern Bongolow » Mon Sep 13, 2010 12:15 pm

the little pipe controls/suplies the fuel pump with a vacuum,this is needed to give more fuel to the engine when running/revving.
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Northern Bongolow
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Re: No Compression it seems

Post by Northern Bongolow » Mon Sep 13, 2010 12:31 pm

there are also 2 little vac pipes that run from the head/drivers side to the pump cold start actuator.check these2 as they are known to go brittle and fail.
TimW

Re: No Compression it seems

Post by TimW » Mon Sep 13, 2010 12:34 pm

Yeah the little ones that go by the rocker cover? they are broken on mine, where do I get new ones and what are they called?

Thanks for the reply :)

T
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Northern Bongolow
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Re: No Compression it seems

Post by Northern Bongolow » Mon Sep 13, 2010 2:08 pm

these are just standard vacuum pipe.i got spares from the scrapyard.mitzi padgero have them amongst others.if you get spares make sure they are airtight and dont suck FLAT when fitted.
also BE VERY CAREFULL WHEN REMOVING THE OLD PIPES FROM THE ELECTRIC SOLENOIDS AS THE ENDS OF THESE CAN BREAK OFF,and they are expensive.

make sure you dont cross the pipework over when fitting these.
the right solenoid controls the aircon/fast idle pickup.to the end feed of the actuator, when engine cold and the left one does the halfway off control for the fast idle,to the middle entry of the actuator,
TimW

Re: No Compression it seems

Post by TimW » Mon Sep 13, 2010 2:19 pm

Thanks again for the info...
:D


(I hope this goes well :shock: )
TimW

Re: No Compression it seems

Post by TimW » Tue Sep 14, 2010 11:46 am

FIXED!! =D>

I hope it lasts a bit longer this time :lol: it was the big hose, I must have forgotten to tighten the jubilee clip up. :oops:
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Northern Bongolow
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Re: No Compression it seems

Post by Northern Bongolow » Tue Sep 14, 2010 1:27 pm

i love a cheep fix meeeeeee! :lol:
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