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Re: Follow-up on removing pistons on 400


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Posted by buickanddeere on March 25, 2008 at 10:42:30 from (192.75.48.150):

In Reply to: Follow-up on removing pistons on 400 posted by Wardner on March 24, 2008 at 14:07:57:

Pulling the roads & pistons is not the way to go. Oiling, balance, time, work both now and later for just starters.
At 52.4 rated HP for an engine in top notch condition. It"s going to working hard just to spin that alternator at full load or while starting compressors. 19-21HP depending on generator & it"s drive efficiency. How about the other loads.
Now add in all your other intended loads.
Not only is it going to be lugging when running on two cylinders. The exhaust and mechanical noise is going to be much louder compared to a four cylinder at 2/3 load.
Have another thought on how much HP is used to spin the cooling fan and thrash thick lubricating oil in the sumps at full rated rpms.
As previously posted, it"s going to burn less fuel on four cylinders than two if....
You get the coolant temps up to 220F for efficency, lean the idle and main mixture so it"s running 15.7 to 1 not 13.5 to 14 to 1.
Drain those thick old mineral lubricants and replace. The old lube must be due for a change anyways. Replace with a winter weight synthetic. The synthetic trans/hydraulic lube is going to lube better than the old GL-1 or the 0W-20 engine oil vs. sae40.
The engine cooling fan, water pump & generator is taking HP that isn"t required.
As the engine will be running at full rated rpms. The crankshaft pulley can be reduced to drive the generator, water pump and fan at 1/2 to 2/3 speed.
You will gain far more by reducing drag and increasing combustion efficiency than tinkering a 4-2 system.
The tractor will still have full rated HP available in reserve as a bonus.


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