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Post by dave1800 on Dec 12, 2019 2:04:40 GMT
Some of you may already be aware that Neil Kidby contact details has had some success repairing Austin 3 Litre displacers where the rubber has cracked. He has kindly said he is willing to help Landcrab owners with similar issues. Please note at this time there doesn't appear to be any solution for failure of the diaphragms but I would repeat earlier advice not to scrap any units no matter how bad they are. David
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Post by andrewa on Dec 12, 2019 13:19:39 GMT
Thanks for this - Neil is a gent and was an invaluable source of help and advice when I had my 3 litre.
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Post by deconstruction on Dec 22, 2019 10:09:04 GMT
Couldn't agree more, Neil is a wonderful person, kind and knowledgeable.
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Post by charlypm on May 4, 2020 17:31:01 GMT
Well, I was afraid this would happen sometime. My front displacer blew out. I changed the hose a year ago, so I know it's not the hose. What is anybody doing? I can't seem to find any around. What are the alternatives? Thanks,
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Post by Penguin45 on May 5, 2020 12:17:54 GMT
Tony Wood will supply, Charly. Dread to think about the postage! I'd be tempted to get it apart and see what's actually happened.
Chris.
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Post by jeff on Apr 17, 2023 9:20:15 GMT
"Listen I've been thinking". Jeff's wife had come to dread those mortal words causing much rolling of the eyes. Haha 😁
The subject of displacers kept coming to mind while working on my landcrab over the weekend.
You have to bear in mind I'm only simple guy who cut his teeth on fixing ancient corporation buses over years 50 years ago so my ideas are often parochial, even rather agricultural, so here goes.
If we can't get new displaces for our cars due to low volume and cost, and refurbishing existing ones seems unlikely, we will have to find an alternative at some point or our cars will be destined to the history books. Here's my thoughts. Sorry no drawings yet.
We would have to say goodbye to hydrolastic suspension and make an alternative based on conventional spring and damper systems.
If we look at say, how the front displacers are mounted first. They just sit inside a very strong tube, mounted across the bulkhead.
A very strong steel cage made from angle iron type construction with circular ends to fit the within the cross tube housing, similar diameter to the existing displacers.
Within that cage is seated a bespoke spring and damper. The spring could be made relatively cost effective, as they sometimes are for kit cars and competition cars etc.The damper might be available off the shelf and adapted. The inner end of the damper is anchored to a plate/cup welded at the inner end of the cage. The outer end of the damper sits in a socket to which is welded a tube to hold the knuckle joint.
The outer end of the spring sits in a floating plate/cup with a hole in the centre for the damper to pass through.
The damper could be replaced but the spring could only be replaced with the cage as it would need to be compressed during manufacture.
So, theoretically, the assembly would effectively be like an open displacer containing a spring and a damper, instead of a diaphragm, valve and fluid.
Mad idea?? Bad idea?? Possible? Either way I guess it would be a lot cheaper than remanufactured displacers. The downside is, we would lose the characteristics of Hydrolastic suspension.
I'm pretty sure better brains than mine have pondered this dilemma we face. But, as I say, I'm just thinking, and I'm definitely no production engineer.
Jeff.
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