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TOYOTA IMPCO SYSTEM

Number of messages: 9

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fik_c
WESTERN CAPE, South Africa

I`ve got a 6fg25 that starts well but do not rev up unless the choke button is pressed.I swopped the regulator,filterlock and mixer from another 6fg25 that had no problems but the problem is still there, any ideas?

Posted 4 Jan 2009 04:52 AM

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Snapman
Liecester, United Kingdom

Is the inlet manifold bloked up as this will give you that fault.

Posted 4 Jan 2009 09:13 AM

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justinm
New York, United States

did you check the or replace the governor too?

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New York, New York its a heluva town ..you know that The Bronx is up ..and im Brooklyn down

Posted 4 Jan 2009 11:49 AM

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mrfixit
New York, United States

I've seen the fuel hose from the regulator to the carburetor collape or crack and cause a no rev up problem on Toyotas.

Posted 4 Jan 2009 01:13 PM

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fik_c
WESTERN CAPE, South Africa

Thanks.I replaced the fuel hose and checked + adjusted the governor.Will check the manifold.

Posted 4 Jan 2009 06:28 PM

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BobbyT
Wilts, United Kingdom

Looks as if you have tried just about everything, has the 6 series got a 4Y engine? if so I agree with snapman, it could be a blocked manifold, but you would have seen this if you had the governor off!

Modified 5 Jan 2009 07:50 AM
by poster.

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Prentice
Ontario, Canada

Do not take this the wrong way but i have seen this happing allot. Check the air intake on the back right or left overhead guard. Make sure that the driver has not put plastic wrap on top to stop the rain and blocked off the air intake. It sounds dumb but i have seen it stall out an engine

Posted 6 Jan 2009 01:23 AM

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fik_c
WESTERN CAPE, South Africa

Thanks for all the help. Manifold was the problem. Not dumb Prentice, plastic wrap is causing us a lot of problems, like broken fanblades damaging radiators.

Posted 6 Jan 2009 03:27 AM

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DaveUK
BERKSHIRE, United Kingdom

Well done fik c it is always good to get feed back rather than like some guys who just keep quiet once they have got the information and fixed the problem.......... I have come across blocked manifolds on the Toyota 4Y engine a lot, seems to be when the engine starts to get a little bit worn and starts to breath through the PCV valve, the gunge then builds up on the hot spot between the exhaust and inlet manifold...........I have seen them so you can hardly get a screwdriver through the hole!

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Who bravely dares must sometimes risk a fall.

Modified 8 Jan 2009 06:20 AM
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