Reducer recommendations

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hitman
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Reducer recommendations

#1 Post by hitman » Thu Jan 14, 2021 12:38 pm

Hi

Got a small coolant leak on the reducer and haven't been able to nip it up, probably time to change it out anyway as its 7 years old.
Any recommendations suitable for a 4.2 sc range rover?

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Re: Reducer recommendations

#2 Post by LPGC » Thu Jan 14, 2021 6:55 pm

Depends on what other components are fitted... Ecu and injectors ?
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Re: Reducer recommendations

#3 Post by hitman » Thu Jan 14, 2021 7:08 pm

King ecu
Magic jet injectors with nozzles removed 👍

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Re: Reducer recommendations

#4 Post by LPGC » Thu Jan 14, 2021 7:23 pm

It won't need a lot of pressure with the MJ's without nozzles, which means a lot of reducers would be suitable, just needs to be capable of flowing enough gas for the demands of the engine.

If it's been working OK with the reducer type fitted you might as well buy another of the same type since piping connections (water and gas) and electrical connections could easily be swapped over with no alterations necessary?

The question about what ECU was because some ECUs are only compatible with a particular spec reducer water temp sensor but King (at least with later firmware) is compatible with a couple of specs including the most standard electrical spec.
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hitman
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Re: Reducer recommendations

#5 Post by hitman » Thu Jan 14, 2021 7:52 pm

It has an ultragas fitted I'm in Portugal, I can't find a supplier for ultragas, I'm going to try and get it apart tomorrow and see if I can fabricate a rubber gasket for it but suspect I'm going to have real trouble removing the screws as they are goosed anyway, star points rounded off.

Its single gas outlet thats currently fitted, so any ideas for something that would substitute current ultragas would be great, just in case I bugger it up totally 🙄

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Re: Reducer recommendations

#6 Post by Brian_H » Thu Jan 14, 2021 9:10 pm

Looking around, this is listed as an ultragas
https://www.alibaba.com/product-detail/ ... 690bkKf7LW

Looks very much like a tomosetto AT-09 to me (infact you can see AT09 on the side of it and in the description), Like this one > https://www.lpgshop.co.uk/tomasetto-at0 ... g-reducer/ which obviously wouldn't be suitable for your engine, but would suggest maybe its a clone of another reducer or a rebadged reducer possibly? A photo of it might help tell what it actually might be compatible with?

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Re: Reducer recommendations

#7 Post by LPGC » Thu Jan 14, 2021 10:13 pm

Ultragas have used reducer designs made by various manufacturers over the years, including Tomasetto AT09 and KME

The term 'AT09' may give the impression of a specific model of a Tomasetto manufactured reducer but there are many different model Tomasetto AT09's ranging from around 100bhp capacity to around 400bhp. There are not necessarily any written markings on them to tell the different spec versions apart (having said you can't tell what they are by reading AT09) but you can tell them apart by dimensions/shapes and position of water connections and gas outlet. Difficult to explain the difference in dimensions and looks due to the irregular shape of all of them but a picture paints a thousand words so if you're not familiar with the specific versions it might be a good idea to look at suppliers websites to find the specific model of AT09.The different models are known by different names such as (older versions) Alaska, Arctic, Antarctic and Anarctic. The last two words there were not a mistake, they are (or were) different models! The main difference between some models is just the water jacket.

I've fitted at least one of most versions of AT09 but I wouldn't fit another, especially on a high powered vehicle. The low power versions are not so bad in terms of reliability on a low powered car but do seem to have too many problems with water leaks, I think partly due to poor water flow making low reducer temp conditions more likely and seals that are prone to failing in the cold. The more powerful versions have the same water leak faults as the low powered versions but also have other reliability problems besides.

I wouldn't advise most of the reducers Ultragas have supplied in kits over the years for your car.
Like Brian says, it would be a good idea to post a pic of your reducer.
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hitman
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Re: Reducer recommendations

#8 Post by hitman » Fri Jan 15, 2021 9:08 am

It looks like it is based on a tomasetto.

I'll be pulling it today at sometime

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Re: Reducer recommendations

#9 Post by hitman » Fri Jan 15, 2021 1:32 pm

Sorted, turns out that it was just the o rings hardened on the water in and out, now leak free, did get some pics but can't find how to upload them?

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Re: Reducer recommendations

#10 Post by Brian_H » Fri Jan 15, 2021 1:43 pm

Click the button that says full editor & Preview, you should then see options for attachments (Why phpBB is like that I don't know, its not very obvious!)

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Re: Reducer recommendations

#11 Post by hitman » Fri Jan 15, 2021 1:57 pm

Pics didn't work just getting http error

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Re: Reducer recommendations

#12 Post by Brian_H » Fri Jan 15, 2021 2:01 pm

They might be too big (file size) I think theres a limit of 2mb per pic maybe. Either crop them down, or reduce the quality. Or post them to imgur or onedrive and link them would also work?

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Re: Reducer recommendations

#13 Post by hitman » Fri Jan 15, 2021 2:16 pm

pics
Attachments
reducer 2.jpg
reducer 2.jpg (293.27 KiB) Viewed 71 times
reducer 1.jpg
reducer 1.jpg (303.66 KiB) Viewed 71 times

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Re: Reducer recommendations

#14 Post by Brian_H » Fri Jan 15, 2021 2:30 pm

It definitely looks like one of the Tomosetto type, The back end is a lot larger than the one I posted, but would suspect you'd get the right diaphrams by looking for them under the Tomosetto types if it comes to needing them in the future

Some of them use the same diaphrams according to what info is available, though not seen one with the back side looking like that to say for sure you could use one. And it may be better to replace the reducer anyway if it gets that bad. Mine came apart with the only issue being the temp sensor, yours has a plug on the sensor so could leave it in place anyway (I should have cut the wires on mine but thought it would unscrew ok).

Looking around, the closest model i can see is the AT-09 Artic for the extra bit on the back (must be the preheater)
Image
https://www.tomasetto.com/en/products/l ... model-at09
Last edited by Brian_H on Fri Jan 15, 2021 2:39 pm, edited 1 time in total.

hitman
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Re: Reducer recommendations

#15 Post by hitman » Fri Jan 15, 2021 2:42 pm

Looked fairly clean inside with no heavy ends present, rubber gasket quite hard but no sign of cracking, I had no o rings available and we went into lockdown today so have just cleaned up the water elbow connectors and smothered them and the o rings in hylomar blue, leak free at the moment anyway 😎

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