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Jammed diff actuator

#1 by Kimbo ( Guest ) , Mon Oct 08, 2018 7:20 pm

Hi guys
I need help
My front diff actuator rod appears to be jammed
How do I free it? Do I pull it in and out or do I twist the rod?
Donít want to break it just need to know best way to fix it


Kimbo

RE: Jammed diff actuator

#2 by Kimbo ( Guest ) , Mon Oct 08, 2018 7:58 pm

Forgot to say, mitsubishi l200 2004


Kimbo

RE: Jammed diff actuator

#3 by krutly , Tue Oct 09, 2018 8:35 am

pull back the rubber gator and spray liberally with WD40 or the like
you may have to do this a few times if it's stuck
shift into and back out of 4WD a couple of times too
have someone lay underneath to see if it's moving but dont run them over


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RE: Jammed diff actuator

#4 by Kimbo ( Guest ) , Tue Oct 09, 2018 10:44 am

Hi
Taken gater of yesturday, removed vacuume actuator, rod is stuck , plenty of grease around it,
I guess itís a case of slowly try to move it?
I believe that there should be a spring inside that if vacuume fail it moves to default position,
I guess to free it is to get grips on it and tap until free?


Kimbo

RE: Jammed diff actuator

#5 by krutly , Tue Oct 09, 2018 2:33 pm

you may have to unplug the 2 vac pipes that go to the actuator so any vacuum stopping it from moving isn't there

MAKE SURE YOU DONT GET THESE TWO PIPES BACK ON THE WRONG WAY ROUND


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RE: Jammed diff actuator

#6 by Kimbo ( Guest ) , Tue Oct 09, 2018 6:27 pm

Problem found, no actuator solenoid fitted, donít know why,


Kimbo

RE: Jammed diff actuator

#7 by Kimbo ( Guest ) , Tue Oct 09, 2018 8:10 pm

I now have the problem of working out which plug goes where,,
I need to know,
Should the diff lock work in 4 high and 4 low, or should it only activate on 4 low, ,

Help would be gratefully accepted


Kimbo

RE: Jammed diff actuator

#8 by ronniecabers , Tue Oct 09, 2018 9:17 pm

If its a K74 ( classic , series 3 ) then diff lock should only be in 4 low


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RE: Jammed diff actuator

#9 by Kimbo ( Guest ) , Wed Oct 10, 2018 9:24 am

Hi guys
Got a bit confused, rear diff lock works in 4low only,

What I meant was does front diff actuator rod move into front diff in 4h and 4l ?



Kimbo

RE: Jammed diff actuator

#10 by krutly , Wed Oct 10, 2018 9:44 am

Quote: A guest wrote in post #9
Hi guys
does front diff actuator rod move into front diff in 4h and 4l ?




yes it does


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RE: Jammed diff actuator

#11 by Kimbo ( Guest ) , Wed Oct 10, 2018 6:09 pm

Upon further mucking about, it appears I have no vaccume, think itís the pump on back of alternator,,,,
How do I test this.?


Kimbo

RE: Jammed diff actuator

#12 by Kimbo ( Guest ) , Wed Oct 10, 2018 8:03 pm

Hi guys

Is the vacuume pump switched or does it pump all the time?.?

Fitted to back of alternator,

Mitsu l200 2004


Kimbo

RE: Jammed diff actuator

#13 by 123hotchef , Wed Oct 10, 2018 9:02 pm

it works when the engine is running and belts are turning the alternator


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RE: Jammed diff actuator

#14 by Kimbo ( Guest ) , Fri Oct 12, 2018 3:32 pm

Hi guys

Ok so no vacuum before one way valve for diff actuator pipes, I notice that the metal vacuum pipe Ts off in between inlet manifold,

Is this a vacuum supply for actuator circuit when engine is running?

I have vacuum at brake servo so assume pump is working on back of alternator


Kimbo

RE: Jammed diff actuator

#15 by Kimbo ( Guest ) , Fri Oct 12, 2018 7:16 pm

Further info, I have found a pair of vacuum switches on the near side inner wing, two different types of plug, does anyone know
The part number for this?


Kimbo

RE: Jammed diff actuator

#16 by ronniecabers , Fri Oct 12, 2018 7:42 pm

sounds like the vacuum solenoids you've just found.... @123hotchef got any part numbers or places to buy those


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RE: Jammed diff actuator

#17 by 123hotchef , Fri Oct 12, 2018 8:04 pm

yeh milners sell those babies or u can get cheper ones that dont last so long on ebay


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RE: Jammed diff actuator

#18 by Kimbo ( Guest ) , Sat Oct 13, 2018 6:30 pm

Update

I now have a vacuum, found blocked pipe,
I am now actuator rod out (4 wheel drive) gear selector is in 2wd,,,,,,, can anyone tell me wiring coulour codes for plugs on solinoids on chassis off side

The plugs are the same so can be put in wrong way around

Mitsubishi l200 2004


Kimbo

RE: Jammed diff actuator

#19 by Kimbo ( Guest ) , Sat Oct 13, 2018 9:00 pm

[quote=Kimbo|p412350]Update

I now have a vacuum, found blocked pipe,
I am now actuator rod out (4 wheel drive) gear selector is in 2wd,,,,,,, can anyone tell me wiring coulour codes for plugs on solinoids on chassis off side

The plugs are the same so can be put in wrong way around

Mitsubishi l200 2004[/quote]

Blue is sucking


Kimbo

RE: Jammed diff actuator

#20 by Kimbo ( Guest ) , Sun Oct 14, 2018 6:53 pm

Thanks to all for your help, four wheel drive now working


Kimbo

   

1989 mk1 L200
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