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-   -   Replacement monovalve heat control (http://www.peachparts.com/shopforum/diesel-discussion/206723-replacement-monovalve-heat-control.html)

Brian Carlton 11-30-2007 11:14 PM

Quote:

Originally Posted by Knightrider966 (Post 1690330)
True, the monovalve was not as wide open as this is. It's almost like not having a valve in there at all!:eek:

As far as cabin temps go, it seemed fin on my way into Phoenix!:)

I had the up/down button pushed and it stayed slightly warm just like I wanted not going from hot to cold.:thumbsup:
The resevoir seems to dampen the movement of the valve allowing it to slowly open and close!:thumbsup:

Please report back on your results during the winter. I'm most curious about the ability to maintain temperature...........as compared to the monovalve.

Knightrider966 11-30-2007 11:21 PM

Quote:

Originally Posted by Brian Carlton (Post 1690332)
Please report back on your results during the winter. I'm most curious about the ability to maintain temperature...........as compared to the monovalve.

Will do, but this is Phoenix Arizona!:sun1:
Winter means we put on long pants to wear with out golf shirts!:D

If it gets down to 40F it would only be at night!;)

pawoSD 12-01-2007 01:26 AM

Tomorrow I am removing and inspecting my monovalve, as I am sick of freezing to death in the car. Its getting rediculous, I can drive 25 mins, car is at 75-80C and my cabin temp is about 25-30F. Very little heat. :mad:

It is currently 12F outside. So I reeeeally need to fix this. If I can't get the monovalve to work, I will fashion a copper tube for direct 100% flow. :eek: Maybe THEN it will be warm!

Knightrider966 12-01-2007 01:29 AM

Yeah I know what you mean! I used to live in a cold climate and I often miss it, but not if i'm without car heat!:D

pawoSD 12-01-2007 01:34 AM

Our 300D has MEGA heat.....and it comes on in about 2-3 mins full force. It will heat the whole cabin of the car up in maybe 4 mins to a so-warm-its-uncomfortable temp. That is my goal tomorrow in fixing my system....

hangit 12-01-2007 09:12 AM

Could you post some pics for the DIY? Thanks.

John :rolleyes:

Quote:

Originally Posted by pawoSD (Post 1690463)
Tomorrow I am removing and inspecting my monovalve, as I am sick of freezing to death in the car. Its getting rediculous, I can drive 25 mins, car is at 75-80C and my cabin temp is about 25-30F. Very little heat. :mad:

It is currently 12F outside. So I reeeeally need to fix this. If I can't get the monovalve to work, I will fashion a copper tube for direct 100% flow. :eek: Maybe THEN it will be warm!


Knightrider966 12-01-2007 11:07 AM

According to weather reports, Grand Rapids has a snowstorm going on! Hope you get that heater fixed!:D

omegabenz 12-01-2007 12:54 PM

Quote:

Originally Posted by Brian Carlton (Post 1689582)
Too bad you are in Phoenix.

I'd really like to know how that system runs when it's 10°F. outside. It's a very clean install and gets rid of the pesky monovalve forever.

Good job.

BTW, I changed the title of your thread so that others can find it in the future.

Brian I am in Flagstaff,AZ now, its 34 d F right now. Maybe I could try it.

Brian Carlton 12-01-2007 01:04 PM

Quote:

Originally Posted by omegabenz (Post 1690699)
Brian I am in Flagstaff,AZ now, its 34 d F right now. Maybe I could try it.

Austin, you put that system in as well..........??

pawoSD 12-01-2007 02:01 PM

Quote:

Originally Posted by Knightrider966 (Post 1690643)
According to weather reports, Grand Rapids has a snowstorm going on! Hope you get that heater fixed!:D

Its not quite here yet, I am going out in a few mins to grab the monovalve....:D I will try to take a few pics of what I'm doing with my phone, but remember, its COLD, I will be working fast! :eek:

Knightrider966 12-01-2007 04:13 PM

Quote:

Originally Posted by pawoSD (Post 1690741)
Its not quite here yet, I am going out in a few mins to grab the monovalve....:D I will try to take a few pics of what I'm doing with my phone, but remember, its COLD, I will be working fast! :eek:

Good luck! It looks like that snowstorm is coming to you by the end of today!

pawoSD 12-01-2007 06:37 PM

Well, I took it out and cleaned it up/inspected it....didn't fix anything. I think my issue is low-flow or something. The hose going in to the heater core is HOT with the engine at temp, and the ones coming out are only slightly warm. Maybe its plugged up? Is this a possibility? Anyways, I took some pics of what I did.

First I removed the valve plunger, then I disassembled it on the table, I also opened up a valve I got from the U-pick last week, in the pic you can see the diaphragm on that one is torn. :rolleyes: I just cleaned it up and put it all back in, didn't make any difference...it still does cold when on cold....and "warmish" when on hot. I doubt the problem is the valve....its probably the aux water pump or core itself. Although even going 60mph its lukewarm....so its probably the core. :o

Here are all the pics in order:

http://www.tglmarketinginc.com/mbfor...lve/valve1.jpg


http://www.tglmarketinginc.com/mbfor...lve/valve2.jpg


http://www.tglmarketinginc.com/mbfor...lve/valve3.jpg


http://www.tglmarketinginc.com/mbfor...lve/valve4.jpg


http://www.tglmarketinginc.com/mbfor...lve/valve5.jpg


http://www.tglmarketinginc.com/mbfor...lve/valve6.jpg


http://www.tglmarketinginc.com/mbfor...lve/valve7.jpg


http://www.tglmarketinginc.com/mbfor...lve/valve8.jpg

pawoSD 12-01-2007 06:38 PM

and the rest of the pics....assembly is the reverse of removal, so I didn't take any pics of that....

http://www.tglmarketinginc.com/mbfor...lve/valve9.jpg

http://www.tglmarketinginc.com/mbfor...ve/valve10.jpg

http://www.tglmarketinginc.com/mbfor...ve/valve11.jpg

http://www.tglmarketinginc.com/mbfor...ve/valve12.jpg

http://www.tglmarketinginc.com/mbfor...ve/valve13.jpg

http://www.tglmarketinginc.com/mbfor...ve/valve14.jpg

hangit 12-01-2007 08:11 PM

thanks for the pics. Have you tested your auxillary pump?

John

pawoSD 12-02-2007 12:07 AM

Quote:

Originally Posted by hangit (Post 1690965)
thanks for the pics. Have you tested your auxillary pump?

John

The aux pump is a super pain to get to since its buried under all those hoses behind the bulkhead, but I may give it a try if replacing the engine thermostat doesn't help anything. (I only get to 65-75C most of the time, and it takes a while) I know it has been ailing a long time and probably died, it used to make bad sounds when I was starting the car in the morning, and now it is silent. I have a replacement in my spare parts in excellent/almost new condition that I can put in, but that will be an afternoon project....maybe next weekend I will look into it, if replacing my thermostat Wednesday doesn't help. It probably is the aux pump....:rolleyes: However, I have it fused at the plug (that red wire thing in the pics) and it hasn't blown the fuse :confused: So I have no clue....if it was dead you would think it'd blow the fuse. Its only a 1A quick-blow fuse.


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