XJ40 ( XJ81 ) 1986 - 1994

Leaky ol' tub

 
  #41  
Old 05-14-2019, 09:51 AM
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Reinforced the new fitting with twine saturated in JB weld and whipped over the joints ..also lined the fitting with JB ..




Larry
 
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  #42  
Old 05-18-2019, 04:20 PM
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Installed an aftermarket valve (Four seasons 74858) this morning, using my modified connector.

Added teflon tape to the threads and removed a section from the heater hose to allow splicing in the new valve.

Easier to fit than OEM valve, more room etc.

here's a few pics of the result:


dry run assembly


head end of the repair/mod


Heater connection end view:


Plenty of room for the new valve and mechanism.

Larry
 
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  #43  
Old 05-18-2019, 05:52 PM
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Outstanding, Larry!

I've already pointed another member to your ingenious solution.

Cheers,

Don
 
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  #44  
Old 05-18-2019, 07:52 PM
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Bit of a bonus - I just took her out for a test drive and my A/C temps are a good 10 degrees f colder than they have been for the what seems like the last two years, at least this and last year!

That old valve has been on the fritz for some time by the look of it, pretty amazing result though, I was really surprised when I saw the temperature gauge!☺
 
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  #45  
Old 05-18-2019, 08:16 PM
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Originally Posted by Lawrence View Post
Thanks Don, I hope it's the heater hose too, but even if it is (#5), it too seems well buried and out-of-sight.

Do you just remove the intake plumbing TB bellows etc to get at it or does it have to be changed from under the car?
My recollection is that it is not easy to access from under the car due to all the components in the way - steering rack, subframe, starter, oil filter, etc., and the intake manifold obstructs it from above. Every time I've replaced that hose I have just disconnected the intake manifold and tied it back away from the cylinder head. It's not nearly as difficult as it sounds. You remove the air intake plumbing and throttle body, disconnect the various breather hoses and electrical connectors, then remove the screws and nuts that secure the intake manifold and just carefully pull it back away from the head. Tie it back with a bungee cord padded and clipped to the wheel arch or such. Now you have access to everything on the left side of the engine. I wish I had taken photos one of the times I did the head gasket on our '88 and '93 (twice) but I was always in a hurry to get the job done over a weekend. But it's really not hard to pull the intake manifold.

Cheers,

Don
 
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  #46  
Old 05-19-2019, 07:32 PM
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Well, good news is that the valve WAS the source of the leak so we'll have to save the intake manifold job(s) for another day, hopefully way in the future or better still, never..

At least I have a couple of $3 intake manifold gaskets in stock now!

Larry
 
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