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1991 300 GE LWB
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217 Posts
Discussion Starter #1
hello forum, i'm back after an extended vacation from posting and responding to this forum...and honestly i kinda a missed all the updates.

well for those of you who remember me from hmmm maybe two years or so, i've been spending most of my time in the florida keys diving and taking diving instruction classes, i'm one test away from being able to teach. I've been sailing a few times...i've bought and sold a some property...finally living in my first real house in downtown indianapolis...its was built in 1864 and i have almost completely restored her to new condition.

well now to the important item.... i still have my G wagen and it is still running strong. I do have a G related question that i will do a search for first and then post the question..

happy G ing and good to be back

cheers

eric j meury
 

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1980 LWB 280GE
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3,504 Posts
Good to hear from you Eric

I think I still owe you a call back from a few weeks ago. I tried once and missed you, but never got around to trying back.

-Dave G.
 

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Registered
1987 300GD, 1987 300TD, 1991 300TE, 1992 300TE 4M, 1968 Citroen AK250, 1991 VW Syncro Camper
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494 Posts
Hi Eric,

Welcome back. Restoring an old house is certainly a labor of love! It is a good thing you can go diving to get away from it now and then.

Adam
 

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1991 300 GE LWB
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217 Posts
Discussion Starter #4
i just tried to call you again..

i actually wanted to chat with you regarding engine swaps..

i'm considering the following options

1. selling my G wagen (not really sure what it is worth) and buying an old 1979 or 80 in germany and restoring it with a 270 CDI in it..

or

2. just putting a 270 CDI in my truck...


3. or just rebuilding my 300 engine with and making it into a 3.6..


i really would rather have a diesel, and i love the CDI but i'm kinda nervous about the electronics in the thing, i'm also really tired of getting around 10-15 mpg in my current truck so i'm not sure the 3.6 would improve it much, but the benefit there would be the cost of that vs the cost of the transplant would be significantly cheaper and the truck would really cruise and have plenty of pick up for me.

call me on my cell or if any body know if anybody has done this conversion

call

317-903-7926
 

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Registered
1987 300GD, 1987 300TD, 1991 300TE, 1992 300TE 4M, 1968 Citroen AK250, 1991 VW Syncro Camper
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494 Posts
Eric - there is a 603 crated engine on german ebay right now. This is the 6 cylinder diesel used in the 463 300GD. Perhaps the last of the non-electrically controlled diesels.
 

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1980 LWB 280GE
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3,504 Posts
Another indicator

The 603 diesel is the only mercedes engine that MetricMotors does not offer rebuilt heads for. That tells me something about the durability of the aluminum head diesel.

I know, we have lots of folks here with fine experiences with them. It just wouldn't be my first choice when faced with an engine swap, "choosing from anything" in essence, and with my prime motivations of durability appropriate to the vehicle.

Just my thoughts, I know everybody's needs are different.

I'll try and remember to give you a call later this evening, Eric.

-Dave G.
 

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BenzWorld G Class Host
2002 800RMK
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1,518 Posts
If the 603 isn't the turbocharged variant, you will be giving up a fair amount of power as well. From what I have read regarding these engines 617, 603, in the sedans, the 617 while more primative is generally the more reliable choice.
 

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96 G300DT
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2,096 Posts
RE: Another indicator

Hipine - 5/5/2005 7:42 AM

The 603 diesel is the only mercedes engine that MetricMotors does not offer rebuilt heads for. That tells me something about the durability of the aluminum head diesel.
<snip>

-Dave G.
Dave, I'm not sure if you are implying the 603's are more or less damage prone. There are not that many here in the US. Same with the OM606. I haven't heard of any that needed a new or rebuilt head. The reason may be that they have self adusting valves and thus are less prone to damage from a miss-adjusted valve. The 606 I have, has 24 valves, a replacement would be pricey.

The turbo 603 engine had a record of bent rods and oval cylinders and should be avoided. The non turbo version is slow, especially at altitude. The OM606 turbo is powerful but might not fit into the 460 engine compartment due to shock tower location. The G version of the 606 has relatively simple electronics (not OBDII).

My hat is off to anyone who could swing the installation of the 270CDI or 320 CDI motor. I think the electronics would drive one nuts.
 

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GD300 91
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7 Posts
OM603 is the slow one and it's the most reliable of the siblings. There are a turbo charged version used in the sedans at, least in Europe. This is called OM603A, the problem with this in a G might be cooling.


I'm presently driving a 461 with the OM603 engine. For me it's strong enough.
There is however on thing, and consulting the specialists back home they say I have to replace the cylinder head gasket and plane the surface of the head. I have a very regular ticking noise. I believed it was the hydraulic lifter, but from what I hear it's the gasket leaking oil into the cylinder. When the engine is warm with low load(low oil pressure) lifter does not get enough oil. This is how I understend it. I think this is one of the weaknesses of this engine. My engine has been running slightly over 200'000km.
 

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1987 300GD, 1987 300TD, 1991 300TE, 1992 300TE 4M, 1968 Citroen AK250, 1991 VW Syncro Camper
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494 Posts
Metricmotors?

Dave,

Is this the place in Portland Oregon? I did a search and onlyl came up with a metricmotors specializing in Japanese engines. There is supposedly a good rebuilding place in Portland and I have been trying to find out more about them.

Thanks


Adam
 

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1999 G500, 1997 G300, 1986 300GD, 1983 280GE
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328 Posts
RE: Metricmotors?

Adam,
I had my 300 GD motor redone by a machine shop here in Portland about 2 years ago. I don't recall if it was "Metricmotors" and am unable to find the paperwork right now. The work was sent out by Sig, the mechanic at MBI (Mercedes Benz Independent) Motors. Their number is 503-231-0444. They have also been very good at sourcing parts for me through their parts department. Usually from Europa, but also from the MB dealers when possible.
Eric
 

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1980 LWB 280GE
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3,504 Posts
This is the place:

http://www.mercedesengines.net/

you have to search "metric motors mercedes" to get them to com up on Google.

The thing I found most interesting was that while they don't offer a rebuilt 603 head for exchange sale, they WILL rebuild YOUR head for you if it passes their inspection. The 603 was the only one that held that particular arangement. It put the idea in my "head" that they thought they'd likely receive non-rebuildable cores in exchange.

I bet a quick call would yield their thoughts on durability of 603 heads. I have to admit, I don't know WHY they don't offer them rebuilt, I was just drawing my own, quite possibly erroneous, conclusions.

There's also a rebuilder on the east coast that is very highly thought of on the sedan lists here at Benzworld. Anyone interested in engine rebuilding should probably give a shout over on the sedan lists to come up with some good recommendations.

-Dave G.
 

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Registered
1987 300GD, 1987 300TD, 1991 300TE, 1992 300TE 4M, 1968 Citroen AK250, 1991 VW Syncro Camper
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494 Posts
Thanks Dave and Eric. I am just thinking down the road. When I pay 28K for that nice 280GE and decide to put a OM617a into it[:D]


Adam
 
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