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+--- Thread: Coolant system (/showthread.php?tid=6798)
Coolant system - monstercrawlers - 10-08-2015
As my 606 is going in a race truck I need to simplify my cooling system. I have no heater and a rear mounted radiator with only top and bottom hoses running front to rear. Is anyone else running anything similar ? Can the coolant pipe coming out of the back of the head be t'd into top hose ? I've seen somewhere about removing the block bung under exhaust manifold at rear of block and fitting a outlet there to take the heat away from back... Is that worth doing? Sorry for so many questions have scanned thro the threads and can't find anything similar. Thanks in advance
RE: Coolant system - m1tch - 10-09-2015
Check Dieselmeken's thread here for the solution:
http://www.superturbodiesel.com/std/showthread.php?tid=6666
RE: Coolant system - monstercrawlers - 10-09-2015
Thanx m1tch, that's one question answered just where to put the other pipes now
RE: Coolant system - barrote - 10-13-2015
nop it enters the block at the front and travels through the block up in the head... one thing that we should consider is the head gasket holes where it travels , they are calibrated ..... i just wonder how much we can gain opening them !!!
the rear exit is for heating system .
RE: Coolant system - AlanMcR - 10-14-2015
The rear exit does indeed go to the heating system. However, at least on the W463, MB designed the heating system so that water always flows through it. If the heater valve is closed, then a bypass opens around the heater core, guaranteeing that water keeps flowing out the port.
RE: Coolant system - F.R.A.S - 10-14-2015
Everyone know that you can do a quick fix on any overheating engine by cranking up the heat in the car and turn on full fan. With that said the best way of fixing any heat problem on the last cylinder (or even last two cylinders) should be to mount a small radiator to the heater connectors on the rear side of the head...
In a daily it could be problematic when the winter comes and so on but most people here don't live in a country that goes in to the Arctic circle as I do
RE: Coolant system - barrote - 10-14-2015
(10-14-2015, 12:09 AM)AlanMcR The rear exit does indeed go to the heating system. However, at least on the W463, MB designed the heating system so that water always flows through it. If the heater valve is closed, then a bypass opens around the heater core, guaranteeing that water keeps flowing out the port.
yes and if use care looking at the system we can see that the return line goes back to the thermostatic valve ot side , bypassing the radiator.....
so unless i´m missing something that wont help ....
regards
RE: Coolant system - AlanMcR - 10-14-2015
(10-14-2015, 04:32 AM)barrote(10-14-2015, 12:09 AM)AlanMcR The rear exit does indeed go to the heating system. However, at least on the W463, MB designed the heating system so that water always flows through it. If the heater valve is closed, then a bypass opens around the heater core, guaranteeing that water keeps flowing out the port.yes and if use care looking at the system we can see that the return line goes back to the thermostatic valve ot side , bypassing the radiator.....
so unless i´m missing something that wont help ....
regards
The claim being made is that more flow is needed at the back of the head. Not that extra radiator capacity is needed.
The rear exit provides that extra flow, and the factory is using it, at least on the G.
As far as cooling goes, the G also has a huge, fan driven, oil cooler. I highly recommend that as an addition.
RE: Coolant system - Tobulus - 10-14-2015
Even the 124 estate with OM606 NA has that bypass. It also prevents the head from overheating after engine stop