Measurements on 3.5 liter. 603.97x
Measurements on 3.5 liter. 603.97x
Wonder about :
-Compression height ?
-block height ?
-rod length ? 145 mm (or 149 mm ?)
This is some what I have found out, please correct me if wrong :
Cylinder bore 89 mm. (OM606/5=87mm)
Stroke is 92,4mm ( OM606/5 is 84 mm
Did MB change rod length and compression height during their production period ?
Tanx for input.
Hello, do anyone have some info about the 350 Engine OM603.97x ?
Wonder about :
-Compression height ?
-block height ?
-rod length ? 145 mm (or 149 mm ?)
This is some what I have found out, please correct me if wrong :
Cylinder bore 89 mm. (OM606/5=87mm)
Stroke is 92,4mm ( OM606/5 is 84 mm
Did MB change rod length and compression height during their production period ?
Tanx for input.
W123 Mods: 4 speed ** manual climate control ** '85 Kalitucky intake ** manual windows & full tint ** Euro headlights retrofit w/bixenon projectors ** 4 brake light mod ** Vogtland 50mm drop front & Lesjofors S600 drop rear springs ** 16" rims ** late w126 brake spindles, rotors & calipers ** full suspension rehab ** Bilstein HDs ** AL129X alternator & 1/0 starter and charging cables ** 300GD clutch/flywheel ** AFCO 80103N radiator & Earl's 41610 oil cooler ** custom block-off plate, remote oil filter & t-stat ** MW IP w/ tomnik's 6.5mm 'Holly' elements **
S124 Mods: 400E Rear subframe ** SL600 Brakes ** Late 300E 210mm diff ** SLK230 6 speed ** 17" CLK rims ** Vented RF Fender ** Facelift Hood, Headlights, and Lower Cladding **
OBK# 62
SurfRodder
03-13-2016, 08:33 AM #2From the FSM, rod length center to center is indeed 145mm. I have not yet torn mine down to get the other measurements...perhaps this summer. I plan on trying to convince Mahle to make a set of Monotherm forged steel pistons for me once I get those measurements and see about moving the pin as far towards the crown as possible. Then either find a good set of rods that will fit or again go custom.
W123 Mods: 4 speed ** manual climate control ** '85 Kalitucky intake ** manual windows & full tint ** Euro headlights retrofit w/bixenon projectors ** 4 brake light mod ** Vogtland 50mm drop front & Lesjofors S600 drop rear springs ** 16" rims ** late w126 brake spindles, rotors & calipers ** full suspension rehab ** Bilstein HDs ** AL129X alternator & 1/0 starter and charging cables ** 300GD clutch/flywheel ** AFCO 80103N radiator & Earl's 41610 oil cooler ** custom block-off plate, remote oil filter & t-stat ** MW IP w/ tomnik's 6.5mm 'Holly' elements **
S124 Mods: 400E Rear subframe ** SL600 Brakes ** Late 300E 210mm diff ** SLK230 6 speed ** 17" CLK rims ** Vented RF Fender ** Facelift Hood, Headlights, and Lower Cladding **
OBK# 62
(03-13-2016, 04:30 PM)barrote i have one 602.98 wich is almost the same , if u need to know something regarding diferences for a 605.96 block just ask.
the 603 should have almost the same diferences... i wonder
The OM603 3.0 litre or the OM 603 3,5 litre ? ?
Gwagen 460, om606.962. 722.6 Ole Fejer controller++
Gwagen 463, shitty 603,,,,at the moment,,,
Gwagen 463, 270cdi
(03-13-2016, 04:30 PM)barrote i have one 602.98 wich is almost the same , if u need to know something regarding diferences for a 605.96 block just ask.
the 603 should have almost the same diferences... i wonder
The OM603 3.0 litre or the OM 603 3,5 litre ? ?
Gwagen 460, om606.962. 722.6 Ole Fejer controller++
Gwagen 463, shitty 603,,,,at the moment,,,
Gwagen 463, 270cdi
the 602D29 was comercially available in sangyoung vehicles as OM662 both Td and N/a as 2 valve IDI,
then the 602D29 DI 2 valve was available in sprinters and E290 W210.
The 603D35 fist come in the W140, W 46X , as a more torquier solution for the small 603. there was some of this engines that fitted Scholl bus in the sprinter family as well, but i never saw any.
but if u install 89mm pistons and a crank with 93,X throw in a common 603/606 u get 3.5 liter the same happens for the 602/5 but with less one cylinder 2.9 liter.
what do u want to do with a 3.5ltr ?
FD,
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I belive OM 602D29 and 603D35 are equal ,
the 602D29 was comercially available in sangyoung vehicles as OM662 both Td and N/a as 2 valve IDI,
then the 602D29 DI 2 valve was available in sprinters and E290 W210.
The 603D35 fist come in the W140, W 46X , as a more torquier solution for the small 603. there was some of this engines that fitted Scholl bus in the sprinter family as well, but i never saw any.
but if u install 89mm pistons and a crank with 93,X throw in a common 603/606 u get 3.5 liter the same happens for the 602/5 but with less one cylinder 2.9 liter.
what do u want to do with a 3.5ltr ?
FD,
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But I need to change pistons so they will fit the 4 valves instead of 2 valve.
Worried about ovalization of the cylinders and piston slap.
Would like to build a good torque engine for my G Wagen.
I have ofcourse :-) pump from Dieselmeken and a gearbox controller for my w5a900 box.
I understand that I need to find another pistons and probably new rods to get this togheter.
I have some engines laying around but way to litle time to tear them apart yet so I'm not sure what I can re-use.
Trying to figure out what parts I need to use or find to get a strong but also reliably engine.
Did MB change to longer rods and moved the pin on the piston further up after some years to get a more reliable engine ?
So the big question is how long rods I should have and where to find pistons with the pin at the correct hight to awoid piston slap.
The pistons from 604 will be good ?
Tanx for all helpful information.
Gwagen 460, om606.962. 722.6 Ole Fejer controller++
Gwagen 463, shitty 603,,,,at the moment,,,
Gwagen 463, 270cdi
Im hop to fit a 606a 24valve head on that 350 (12valve) block. ( or 350 crank in a 606 block?)
But I need to change pistons so they will fit the 4 valves instead of 2 valve.
Worried about ovalization of the cylinders and piston slap.
Would like to build a good torque engine for my G Wagen.
I have ofcourse :-) pump from Dieselmeken and a gearbox controller for my w5a900 box.
I understand that I need to find another pistons and probably new rods to get this togheter.
I have some engines laying around but way to litle time to tear them apart yet so I'm not sure what I can re-use.
Trying to figure out what parts I need to use or find to get a strong but also reliably engine.
Did MB change to longer rods and moved the pin on the piston further up after some years to get a more reliable engine ?
So the big question is how long rods I should have and where to find pistons with the pin at the correct hight to awoid piston slap.
The pistons from 604 will be good ?
Tanx for all helpful information.
Gwagen 460, om606.962. 722.6 Ole Fejer controller++
Gwagen 463, shitty 603,,,,at the moment,,,
Gwagen 463, 270cdi
u certainly can drop the D35 crank in the 606, and use the D35 rods with the 87mm pistons, piston projection will be arround 1, 3 mm wich can be overcomed by a 2nd stage repair gasket from MB. But this solution need a complicated modification on the cylinder well ,
606 should have a well with less 8mm, assembly the block like that will probably result in rocking at botom with the resulting wear on the skirt, and ovalization in long term.
moving the 4 valve in the 603D35 is from far the best bet, leaving only a small but dificult situation to adress, and that is modify a 604 piston wrist pin from 26 to 28mm, or reshape the 2 valve piston, well machinning is needed either way!!! or u can just buy a custom made pistons wich shouldn´t be that dificult.
regarsd
FD,
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well,
u certainly can drop the D35 crank in the 606, and use the D35 rods with the 87mm pistons, piston projection will be arround 1, 3 mm wich can be overcomed by a 2nd stage repair gasket from MB. But this solution need a complicated modification on the cylinder well ,
606 should have a well with less 8mm, assembly the block like that will probably result in rocking at botom with the resulting wear on the skirt, and ovalization in long term.
moving the 4 valve in the 603D35 is from far the best bet, leaving only a small but dificult situation to adress, and that is modify a 604 piston wrist pin from 26 to 28mm, or reshape the 2 valve piston, well machinning is needed either way!!! or u can just buy a custom made pistons wich shouldn´t be that dificult.
regarsd
FD,
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Do you know anything about the piston skirt length on the 3,5 piston and the 604 piston ? Longer skirt is better for prevent piston slap ? (If space enough)
Gwagen 460, om606.962. 722.6 Ole Fejer controller++
Gwagen 463, shitty 603,,,,at the moment,,,
Gwagen 463, 270cdi
Thank you so much for that info. I think I will try to drill the piston pin holes from 26 to 28 MM on the upper end of the hole.
Do you know anything about the piston skirt length on the 3,5 piston and the 604 piston ? Longer skirt is better for prevent piston slap ? (If space enough)
Gwagen 460, om606.962. 722.6 Ole Fejer controller++
Gwagen 463, shitty 603,,,,at the moment,,,
Gwagen 463, 270cdi
piston crown cooling and wrist pin lub is something u should keep an eye in .
another thing is the recess, this 93,X mm throw the piston have a recess for the oil skirters, weather the D22 pistons have it or not maters litle i have to cut it . relating the pistons on the 604 being N/A style ... well i use a set in my STD 150cc pump and still going strong some 50k KM dwn the road
FD,
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piston measures should be the same , remembre the 604 come in 2 sizes , D20 and D22 the one u want is the D22 wich is barely the same throw as the D35 603.
piston crown cooling and wrist pin lub is something u should keep an eye in .
another thing is the recess, this 93,X mm throw the piston have a recess for the oil skirters, weather the D22 pistons have it or not maters litle i have to cut it . relating the pistons on the 604 being N/A style ... well i use a set in my STD 150cc pump and still going strong some 50k KM dwn the road
FD,
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I know its called the rod bender and mine also have bent rods, but I can replace them with stronger rods.
About overheating, isnt that the tophead ? And maybe topheadgasket ? If I change to MLS gasket, and either have the upgraded top # or 606 24v head the block should be good enough ?
Tanx for all help. ( tanx barrote for your knowledge)
Gwagen 460, om606.962. 722.6 Ole Fejer controller++
Gwagen 463, shitty 603,,,,at the moment,,,
Gwagen 463, 270cdi
about the 350 engine, OM603,97x 3.5 liter Is it any weeknees one this engines ?
I know its called the rod bender and mine also have bent rods, but I can replace them with stronger rods.
About overheating, isnt that the tophead ? And maybe topheadgasket ? If I change to MLS gasket, and either have the upgraded top # or 606 24v head the block should be good enough ?
Tanx for all help. ( tanx barrote for your knowledge)
Gwagen 460, om606.962. 722.6 Ole Fejer controller++
Gwagen 463, shitty 603,,,,at the moment,,,
Gwagen 463, 270cdi
bend rods hum , surely that has nothing to do with the block , change the rods to stronguer ones if u intend to produce over 80hp cylinder,
the heating is like any other 6 cyl inline as far as i know many have heating issues. the gasket has litle to do with the heating issue unless something is not aligned ....
the 24 valve head can be used in the 603 block like the 20valve can be used in the 602 or the 16 in the 601... but is not drop in.
regards
FD,
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the 3.5 block is like any other block...
bend rods hum , surely that has nothing to do with the block , change the rods to stronguer ones if u intend to produce over 80hp cylinder,
the heating is like any other 6 cyl inline as far as i know many have heating issues. the gasket has litle to do with the heating issue unless something is not aligned ....
the 24 valve head can be used in the 603 block like the 20valve can be used in the 602 or the 16 in the 601... but is not drop in.
regards
FD,
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