Engine conversions? 2.9TD Musso, 320CDI or LPG
Guys forgive me if this has been done to death I'm a slow learner but want to be sure. I have an 87 460 280 GE LWB 5speed manual that I intend to keep for a very long time and long term I intend to run it best I can. But with fuel prices rising all the time I'm looking at what's possible to improve running costs and drivability. I don't want to go down the road of buying all the stuff unless it definately can be done so any solid advice would be very much appreciated. I'm planning on buying the bits for whatever direction I go over the summer, Or as they come up, and doing all the work over the winter. I'm open to any suggestions on conversions that have been done.
2.9 TD Musso engine, engine/auto box?
I've just read on another thread that the 2.9 TD Musso engine fits more or less straight onto the 5 speed box and engine mounts. I'll nip onto that thread later to see what's involved with that one.
320 CDi engine, engine/auto?
I've been talking with the guys who keep me on the straight and narrow about my G Wagen about seeing if the 320CDi engine can be fitted maybe with its auto box. We don't know if it can be linked to the drivetrain and of course on that one there's all the electrics including the electrics in the auto box. That would mean the purchase of a complete car to transfer everything over. A lot of electronics to go wrong but a sweet engine.
280 petrol.
Keep the engine I have which is a good engine and gas it. There are issues with the metering unit I know.
w123TD.
Fits straight in I believe but hard enough to find.
Anything conversions you know that's been done and works would be very appreciated.
Thanks in advance. Stu

Comments
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
Hi Stu
I've done a 2.9TD Musso conversion, but from diesel to diesel, which makes it a lot more straight forward than what you would have to do going from a petrol to diesel. There would be so many other things you'd come across, eg, starter key doesn't have vacuum shut off, fuel system different, air cleaner etc etc.
I'm not saying it wouldn't be good if done PROPERLY, but, the cost would be, in my opinion, a lot more than first anticipated, which would mean that the whole idea of making it more economical would never be worth it. Just doing simple maths, even if you halved the fuel cost, it would take years to get the cost back just on using less fuel.
I'm all for doing conversions, but they must be done to a very high standard in order to retain reliability, and I think half your motivation has to come from being interested in conversions, financially I don't think there's much, if any gain.
If you want a diesel G, I would say just buy one.
My opinion of course. Hope that gives you something to think about. Cheers Scott.
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
Hi Stu,
Before I bought my G-wagon I investigated purchasing a petrol G and converting it to LPG. I spoke to whom I would consider to be the best LPG conversion people in NI, (who converted and maintain my car) and they advised me against it. They said that it would never run right and I would be back in with it every few months. I went on to buy a turbo diesel g-wagon 460. My advice would be to stick to the petrol. I have found the running costs of a g wagon to be very high. By the time I pay for maintenance and insurance it cost me just over a pound a a mile to run over the last 12 months. I feel the price of fuel is insignificant compared to the other costs associated with running one of these beasts!!
Regards,
Colm
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
Thanks guys for your input. I had a chat over the weekend with the man who's been helping me and I got costs for LPG. It works out better than i had thought so I'm going to stick with the petrol engine and lpg it. Colm your right about it needing tweeked every now and then but as I work on cars Sean is going to show me what i need to do to fettle the system on the single point injection should I need to. I can live with that.
If things go well with the car then over time I would consider upgrading to a diesel 463 when funds allow.
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
I had LPG on both my 230 and 280, never had a problem !
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
I had lots of problems of my ge280 auto on gas
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
Having it fitted by some. Welsh farmer don't help
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
Hi Stu,
I would be very interested to know how you get on with your gassing project. I am a big fan of LPG and I am on my second gas car. I had throughly researched what you are going to do when buying my G and decided against it. I would love to know if in hindsight I made the right decision! Before taking the plunge I would drive a 280 with a single point system as there is a difference performance wise between gas and petrol with these systems. I would also drive your G for a month or two on petrol after you get it put together before converting. Make sure G runs 110% on petrol because if it does not you will have alot of bother with the gas. If the single point system does not provide the power and refinement you need I believe it is possible to fit a multipoint system and retrofit an engine management system. Sean will keep you right anyway.
Colm
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
Hi Guys. Sorry its been a while. I moved to a new post in work and it took off big style so time got very limited.
I got as far as changing the engine in the 460 to a 280 petrol but that was as far as I got as a guy who had an old Lancia I'd been chasing for over 3 years heard that I had 2 G's (I aquired a SWB 230 along the way) and ended up doing a deal for the Lancia.
I did go on to buy another G, wait for it, a 350TD! which started playing up on me 6 weeks later and has now got to the point were I now need to replace the engine. So I'm pretty much back to square 1. And yes I was told not to go for the 350 due to its problems but the spec of it was pretty much exactly what I would have been building the 460 into and I couldn't resist it.
Thankfully I have the mate on hand and we are in the process of changing the engine for a 300D 603N/a which we're looking at fitting the turbo etc from my engine to. So I'll let you know how I get on.
Eventually when funds get built back up again I'm going to look at what's required to fit a 320CDi as I know the 300d is going to be a short term solution. The goal is to get enough power to actually be able to pass something at 50/60 without needing a road as long as a runway to do it.
So that's me up to date.
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
funny you mention your 350 engine disaster, there is a new member who has had a failure with his 350 and has gone out and fitted another and guess what, it sounds like the whole awful process is starting all over again...who was it who said 'insanity is doing the same thing ,but expecting a different result. some 350 engines were put right by merc but you have to find one.
you have missed the ultimate motor the 606.962 or.964 g derivative turbo engine - all the parts from the lemon 603 350 engine swap over -sump -pump-injection pump -mounts ... same bellhousing pattern as all 60x engines
603 n/a sweet but totally flat - 320 cdi nightmare of gearbox controllers/ecu's -limp mode- interfaces- and tricky diagnostics -all mechanical analogue 606 you can take the battery off once it is running same as the old 617 donkey.
non turbo engines do not have under piston oil squirters/ 606 exhaust valves are h/d spec -turbo engines have subtle but important changes to cope with the heat /power /you can turbo the n/a just keep the boost low and it will be fine -check out superturbodiesel.com for more info.
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
No brainer really...must be Musso..no issues petrol to diesel...wiring loom has preheat cables colour coded all ready in it...ign shut off...use Musso electric diesel shut off on side of M pump...you will need clutch flywheel gearbox [5 or 6 speed ,easy to source ,maybe a flange,£250 for new merc 602 mtgs,thermo housing,rad hoses.intercooler not that hard,esp with engine out.
With luck you can sell 280 + gearbox for good money on ebay.
Axel has just done one into a 230 - 460 goes like a rocket and 20- 30 mpg depending on usage.
Some gas conversions good ,esp if you have 'balloon gas' but power is reduced and tank storage/range is an issue.Road tax issues have made 5 litre V8 gas conversions very popular in Holland but $$$$ again.
Fit a 90litre plastic tank and you have 500 miles++ between fills
Dont even think about CDI route...may one man in europe can do them $$$$
Only prob....Musso turbos getting harder to find
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
hi TONY MY NAME IS KEVIN I HAVE A W463 POTROL AND WAS THINKING ABOUT PUTTING A 2.9TD MUSSO IN CAN YOU HELP ME OR GIVE ME SOME ADVICE THANKS KEVIN
Re: Engine conversions? 2.9TD Musso, 320CDI or LPG
http://www.ebay.co.uk/itm/ssangyong-musso-MERCEDES-2-9-DIESEL-TURBO-DIESEL-ENGINE-GEARBOX-COMPLETE-/231051005576?pt=
Saw this, any good for a conversion