How to repair Leslie RS Diaphragms

[@RyanHatterer-Ryanns999]

I was going to try and find one of the Leslie RS3L's and was wondering if the sound will chance if I lower the pressure down to about 45-65 or a little lower? if it does then can I work around it, going to put it on my vehicle (My horn in the vehicle is embarrassing at best).

[@mafarnz]

The Leslie RS horns will work fairly well as low as 45PSI, as long as they are getting enough volume. Volume is more important than pressure, so make sure that your air tank has a 1/2" port, all your hoses and fittings and valves are also 1/2". Anything less than 1/2" won't work, especially with lower pressure. Also if you are going to be operating near the lower end of the working pressure range then it is a good idea to make sure everything is in the best shape it can be in, so get those chambers remachined.

[@RyanHatterer-Ryanns999]

Okay, I will look into that. Thank you

[@dzopf]

My diaphragm is mint but my “doughnut” washer/gasket looks to be original and toast. Any idea how I can get a replacement? RS-25

[@mafarnz]

eBay seller taakersc sells new doughnuts and gaskets all the time. Just place a single bid, even if you don’t win he’ll send you an offer at the end of the auction.

[@johnwehner7259]

I have a lesile supertyfon that is in very bad shape. It doesnt make any noise at all when I hook air up to it. The gaskets in this video are also in bad shape. Could you point me to somewhere to get new gaskets and diaphragms. My grandpa gave me the horns and wants to hear them work. I don't need them to sound exactly right or anything. I just want them to make noise lol. Thanks

[@mafarnz]

You CAN buy new diaphragms, but they cost $300 each. Better to just repair what you have! Follow the steps in this video. Use the red high temp RTV rather then the clear stuff I first showed, it works better. As for gaskets, there is a seller on ebay by the name of taakersc that sells new gaskets. For an RS horn, one with the spikes on the back caps, you need gaskets and the doughnuts. www.ebay.com/usr/taakersc?_trksid=p2047675.l2559

[@buttonquail2]

where could I buy a diaphragm rubber for my tyfon 292266 hand pump fog horn

[@mafarnz]

I have no idea, I've never seen one of those in person and didn't know they had a rubber seal in them, other Tyfon horns do not. That isn't a very common horn. You may be able to repair it using the technique in this video.

[@helihoot]

I have a single Leslie with the domed cap like you have in the video (non-RS) It has those two diaphragms but also has a plate in the back of the cap with a rubber ring around it. Should I pull that out and clean behind there? Thanks in advance

[@mafarnz]

The issue you had was that somebody had put an RS diaphragm in an S chamber, and the two are not compatible.

[@robertnaler4180]

What is the orientation of the diaphragms in the ra5t, 2 of mine are seal to the horn, and other 3 are to the back plate. Also where can I get rebuild kits. Thanks in advanced

[@mafarnz]

There is no "rebuild kit" commercially available, you just buy the stuff you need. Toothpicks and wax paper you can get at any grocery store, the RTV you get at a hardware store or pet store (aquarium sealant). I would need to see pictures to understand exactly what is going on in your RS5T but it sounds like the diaphragms are stuck inside the back caps? There is only one way they can go in the back cap, there is a grove machined into the back cap the same shape and size of the silicone ring on the disk. The silicone ring of the disk goes into that grove on the back cap. Sometimes they do get stuck, if the horn works then leave them. If not use the technique that I described in the video, hot water and soap to loosen things up, and you can use a blow gun with a rubber tip to blow into the hole on the disk to get it loosened.

[@Silentroller93]

This is what I needed my rs diaphragm was coming apart in a small spot

[@mafarnz]

Perfect, glad to help.

[@tylerj8373]

Where can I get replacements at? Mine are gone.

[@mafarnz]

Tyler Jacobs Unless you have large sections where the silicone ring is completely missing you CAN repair them. New ones run (last I heard) about $85 each, that is about the price you will pay for a complete functional used RS chamber.

[@tylerj8373]

I had them taken apart and sand blasted that way they could be powder coated and the shop that sand blasted them didn't realize till they were halfway through that those diaphragms were in there so they took them out but mess up the gasket pretty bad. Also bent the diaphragms almost into a bowl shape and lost the third one so I'm not too sure on where I could locate new ones. I have a Leslie store near me in Tampa

[@tylerj8373]

They were in perfect shape when I took the horns apart

[@mafarnz]

Tyler Jacobs One of the many reasons never to get a horn powder coated.

[@tylerj8373]

Yeah im new to Leslie but owned Nathans for a while and multiple Horn Blaster models of horns. These were in rough shape when I got them that is the main reason I took them apart. I called Leslie and they don"t have any in stock but they are $98.00 a piece. WOW

[@dablackbeast63]

Where can I buy the diaphragms for the S back caps?

[@mafarnz]

Most likely unless they are warped or cracked you don't need new diaphragms, you need to have the chamber remachined.

[@dablackbeast63]

+mafarnz ok thanks, I'm having a hard time getting the correct sound out of my horns.

[@rickcampbell2192]

Let me know

[@timsnyder2951]

Where can I order a RS diaphragm? I haven't had a whole lot of luck finding them

[@mafarnz]

+Tim Snyder you can order them through Leslie Controls. Last I heard the cost was $100 per diaphragm. You would be better off repairing them as shown in this video.

[@timsnyder2951]

Thanks!! Yeah I repaired mine like this but the silicone was sort of corroded in some spots so it may be on its last leg. I'll keep repairing until I can't anymore. What's the recommended operating pressure range?

[@mafarnz]

+Tim Snyder maximum 140 PSI. I run my horns at 120, and they all work down to at least 40.

[@Silentroller93]

Picked up my first ex Union Pacific leslie rs3l and I'm having trouble with the power chambers. Is there a way I could message you or something?

[@mafarnz]

Yeah send me a private message.

[@joeriley-schedler2215]

+mafarnz I am having trouble with the steel rings locking back into place as well and does anyone have the number to Leslie I can't find it

[@mafarnz]

+Joe Riley-Schedler What do you mean seal rings lock into place?

[@joeriley-schedler2215]

+mafarnz can you call me 5022645235

[@sceu25]

8:28 Sounds like an RS2M!

[@mafarnz]

Yes, 25 was completely dead.

[@Viralclown]

I read my neighbours girl smells really good.

[@mafarnz]

Ha ha! Well I suppose that could also be very distracting...

[@Viralclown]

mafarnz yes those little creatures are known to cause accidents

[@rickcampbell2192]

Where do you get Leslie diaphragms?

[@jimf4754]

Man.. make a mold with some modeling clay and make a new gasket