Landi Renzo SE 81 getting worse

[SeanS]

Hi, my first post here, so here goes, I have an SE81 on my Volvo 240 and over the last year it has needed more and more miles before I can change over to gas and run without stalling, at worst it would be about 7 miles. I found a setup manual online and have got it to run better, but now it's hesitating on pickup especially in town and around tight corners. I noticed that the idle running screw on the front really doesn't make any difference, on either extreme of adjustment, does this sound like an internal problem with the unit, a diaphragm problem?, thanks in advance.

[Gilbertd]

Sounds like it's running rich which is the usual symptom of a life expired vaporiser. What controller have you got on it and do you have any way of seeing what is going on? http://www.autogas-lpg.co.uk/reductor/2 ... -0260.html list the SE81 but are out of stock, otherwise you could replace it with a Bigas M84 from Tinley Tech (http://www.tinleytech.co.uk/acatalog/Re ... isers.html).

[classicswede]

What fuel system does your 240 have? Is it carb, Kjetronic or LH?

It does sound like a gummed up or expired vapouriser. First step would be to clean any heavy ends out from teh vapouriser. Failing that I would replace it with the OMVL R90e as it gives by far the best fuel consumption of all the units I have tried.

[Gilbertd]

I was going to suggest an R90E but suspect they are quite a bit bigger and may be overkill for a smaller engine. I swear by them on anything a bit bigger though.

[SeanS]

Thanks for the quick response guys, it's a 93 20ltr with LH injection. I usually get 250miles on 47 ltrs. I think the whole system is Landi, but am not sure what the controller is, Emulatore LR25 ?. As for cleaning this I would have no problems doing, the lower bleed plug seems clean.

[bxman]

You can get a refurb kit for less than £20 from Wolverhampton.
http://autogas-lpg.co.uk
It is not that difficult a job some of the 3mm studs ( IIRC ) will probably sheer but they are not crucial and do not contribute to either the gas or water sealing of the unit.
Once it is working correctly it will run with the temp sensor disconnected and you will not need to travel 7 feet before it switches over
good luck hope you get it sorted OK

[SeanS]

That sounds good, I much prefer to have a go myself and repair, do they have a phone number. You mention temp sensor, where would this be or do you mean the Volvo one.
I did try and add a pic but the quota is full.

[bxman]

0121 439 8035.
I would try and persuade them to put it in the post if I were you,unless you need some filters as well. they prefer to use a courier
cheers Patrick
ps
sorry
the temp sensor is built into the vaporizer at 3 o'clock opposite the gas feed

[classicswede]

Thanks for the quick response guys, it's a 93 20ltr with LH injection. I usually get 250miles on 47 ltrs. I think the whole system is Landi, but am not sure what the controller is, Emulatore LR25 ?. As for cleaning this I would have no problems doing, the lower bleed plug seems clean.

A very late model in that case. Consumption sounds ok for a mixer system on a LH engine.

You might be interested in visiting http://volvo200crazy.co.uk/index.php


The repair kit is only going to be any good if a seal or diaphram has packed in, if they all look OK chances are the repair kit will not cure your problem. The pivot pins do wear and they are not incuded in the repair kit.

[SeanS]

0121 439 8035.
I would try and persuade them to put it in the post if I were you,unless you need some filters as well. they prefer to use a courier
cheers Patrick
ps
sorry
the temp sensor is built into the vaporizer at 3 o'clock opposite the gas feed

Won't let me add a photo Patrick, but would the filter be in the unit just before the SE81 and are there others.

I did find the number but they were busy and gave me a number for a girl, who was getting back to me but didn't, my question was, as they list two kits which one do I need for the SE81. If I do need filters perhaps I should get these too.

The temp sensor would be mechanical as no wires, is it just below the brass sensitivity screw. Cheers Sean.

[SeanS]

Thanks for the quick response guys, it's a 93 20ltr with LH injection. I usually get 250miles on 47 ltrs. I think the whole system is Landi, but am not sure what the controller is, Emulatore LR25 ?. As for cleaning this I would have no problems doing, the lower bleed plug seems clean.

A very late model in that case. Consumption sounds ok for a mixer system on a LH engine.

You might be interested in visiting http://volvo200crazy.co.uk/index.php


The repair kit is only going to be any good if a seal or diaphram has packed in, if they all look OK chances are the repair kit will not cure your problem. The pivot pins do wear and they are not incuded in the repair kit.

Will keep an eye on that site.

I think a good strip down is needed, but with a kit, unless it's possible to not damage the existing, pivot pins would be no problem, I can fabricate most things at my place.

[Gilbertd]

To be perfectly honest, as Bxman has already said and I have proved in the past, dismantling an old vaporiser will almost certainly result in sheared studs. In my opinion it isn't worth spending money on a seal kit only to find that it either doesn't cure the problem or you can't get the thing apart to fit it when you can buy a complete replacement for not that much more.

[bxman]

would the filter be in the unit just before the SE81 and are there others.

There will be a filter built in to the solenoid cut off valve and may possibly be another incorporated by the tank.
Take a look at
http://www.landi.it

you can select English
choose product range under " products"

see if you recognize the component parts

the temp sensor is wired back to the lpg ECU

are you sure that they list 2 kits they list the se 81 itself and the kit if you look under Landi Renzo


if you look under kits
they list LANDI and LANDIRENZO its the Landi Renzo one you want

the LANDI is a totally different vaporizer do not get that one.

[SeanS]

Thanks for that, ive found the filters and they are remarkably clean. I made an order with them and sent pictures etc so hopefully they send the right kit, they did charge me 16.99 though, which is the price for the wrong kit I think , have to see what comes. interestingly they had a whole SE81 unit in stock on Friday, but it sold that day.

[SeanS]

Ok, kit arrived, Landi Pneumatico. http://www.autogas-lpg.co.uk/-reducer-p ... -0172.html

But I'm not sure I think this is the one I need, http://www.autogas-lpg.co.uk/-reducer-p ... -0172.html

[classicswede]

How have you got on with this?

[SeanS]

Well, since I got the kit and waiting for answers from them on whether they sent the right one, I went for strip down and found the only parts I could use were the two diaphragms, I really needed the cupped seal and the levered seal (in the other kit) but all's gone quiet and phone calls get me nowhere. Two examples of conversations, me to office..... ok I will ask the tech guy........(still waiting)...... me to tech.....you need to call the girl in office.....