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Author Topic: 2.6 Advice  (Read 2820 times)

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star_whites

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2.6 Advice
« on: 12 March 2016, 14:16:53 »
Ok I'm replacing the heater bypass valve on my 2.6 2001. I e removed scuttle and plenum and just fastening last spring clip on hose when I leant on the plenum and I heard a crack.

I had forgot to remove multi plug from the connector at the back right hand side of plenum. Question A what is this and question B will it run without it while I source a new one. Connector is fine, the part has broke in two separating the Diode and wires inside. Feel an idiot for not removing it and thought things were going well.

I've searched all my parts and think I left my only spare on the plenum I binned.
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05omegav6

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Re: 2.6 Advice
« Reply #1 on: 12 March 2016, 14:57:47 »
A picture paints a thousand words and all that... Could be one of a few things :-\
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star_whites

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Re: 2.6 Advice
« Reply #2 on: 12 March 2016, 14:59:35 »
I would post it but I don't have photo bucket
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05omegav6

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Re: 2.6 Advice
« Reply #3 on: 12 March 2016, 15:07:38 »
Dropbox is also an option if you prefer ;)

Difficult to say what you've snapped without seeing it is all... :-\
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RobG

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Re: 2.6 Advice
« Reply #4 on: 12 March 2016, 16:09:23 »
Quote
multi plug from the connector at the back right hand side of plenum.
Sounds like rear multi-ram
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star_whites

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Re: 2.6 Advice
« Reply #5 on: 12 March 2016, 16:13:11 »
Don't have Dropbox either. I'm doing it all from my iPhone
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terry paget

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Re: 2.6 Advice
« Reply #6 on: 12 March 2016, 16:18:32 »
You say back right hand side  - is that driver's side or passenger side? You say multiconnector - how many wires? You mention a diode - what does that mean?
If it's the plenum multiram, as Rob suggests, it will run all right, but be flat at low revs.
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YZ250

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Re: 2.6 Advice
« Reply #7 on: 12 March 2016, 16:22:08 »
Quote from: RobG on 12 March 2016, 16:09:23
Quote
multi plug from the connector at the back right hand side of plenum.
Sounds like rear multi-ram

Agreed.  :y
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terry paget

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Re: 2.6 Advice
« Reply #8 on: 12 March 2016, 16:48:58 »
Here';s the back of a short plenum, showing the multiram. It's very easy to break the connector off the vacuum valve and leave it hanging on its wires. There are other similar valves on the engine.


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TheBoy

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Re: 2.6 Advice
« Reply #9 on: 12 March 2016, 17:16:33 »
Dropbox and photobucket both free, and had free iPhone apps ;)

Could be multiram, cound be coil pack, could be anything....
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YZ250

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Re: 2.6 Advice
« Reply #10 on: 12 March 2016, 17:51:32 »
Quote from: star_whites on 12 March 2016, 14:16:53
....
I've searched all my parts and think I left my only spare on the plenum I binned.

The OP implies that the broken part is attached to the plenum, hence why I thought he meant the rear multi-ram.  :-\
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terry paget

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Re: 2.6 Advice
« Reply #11 on: 12 March 2016, 19:43:11 »
I've broken off one or to over the years. I've mended them too. The bonding comes unbonded between plug end and body, leaving the wires intact. I managed to drill holes at the corners and put 8BA screws through to hold it together.
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star_whites

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Re: 2.6 Advice
« Reply #12 on: 12 March 2016, 21:11:59 »
Yes that's the part. Bolted to the plenum on the corner with two small hoses to it, however this has snapped and ripped out the two copper wires so I think a new/replacement one is needed.

I will post in wanted. It starts ok and ticks over but not taken it for a drive yet, will teach me to be more careful in future
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terry paget

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Re: 2.6 Advice
« Reply #13 on: 12 March 2016, 21:38:47 »
The valve is open at idle, closes on throttle opening up to 3400rpm, when it opens again. If it never closes the engine will still run OK, but give less power than it should at low revs. I bought a 2.5 which was sluggish until it really got revving, and it took me some months to realise the fault was a sticky plenum ram valve. There are several identical vacuum valves on Omega engines, you may have one in your spares heap.
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star_whites

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Re: 2.6 Advice
« Reply #14 on: 12 March 2016, 22:57:40 »
No unfortunately not, I've gone through all my parts and ain't got one.  Think I've nearly everything else but not what I need
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