JD 466 engine August 03, 2009 01:11AM
I recently purchase a 466 engine out of a 4440.The guy that i got it from has switched out the original A pump with an A pump that does not have the aneroid device on it. I'm wanting to build the motor to pull in the 3000 rpm range. I have been told that the turbo will not work properly with out the aneroid. looking for good advice.
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Re: JD 466 engine August 03, 2009 01:48AM
You will be fine running without the aneroid on the pump it is not needed for pulling.
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Re: JD 466 engine August 03, 2009 01:55AM
The only advice I would give you is, if you are having someone help you that thinks the turbo wont work without the aneroid wouldnt be the best person to get pulling advice from!
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Re: JD 466 engine August 03, 2009 02:52AM
What does the aneroid do in the pump?
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Re: JD 466 engine August 03, 2009 03:07AM
when the pump comes under load the diaphram increases the fuel delivery. The reason that pullers dont use them is when the pump is remade to a puller pump they set the governor rack to do the same except that it sends it into full fuel not proportioned to the boost pressure
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Re: JD 466 engine August 03, 2009 06:10AM
What is the main difference between an A-pump and a P-pump?
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Re: JD 466 engine August 03, 2009 08:09AM
there is a physical size differance as well as capability. for ease you will most likely use an a pump as alot of 466 sb's came with them. your rules will dictate what you can use. A p-pump can be put on a 466 sb as certain makes came with them , if yours didnt you can machine the hole out and put the bolt pattern in it . An A-pump can produce a fair amount of fuel (700cc) but at a cost and reliability and slower delivery time. A p-pump makes alot more fuel (1000cc) at alot lower cost in the pump with faster delivery but you will spend more to get it mounted etc.
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Re: JD 466 engine August 03, 2009 07:11AM
thanks jon for your help. I'm wanting to put that 466 intoa 4320 that came stock with a 404 i'm wondering how well that will work any suggestion
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Re: JD 466 engine August 03, 2009 08:11AM
will work very well has been done many times fairly easily
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Re: JD 466 engine August 03, 2009 03:05PM
get a good aftermarket clutch the single disc wont hold with a good running 404
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Re: JD 466 engine August 03, 2009 11:15PM
what kind of clutch do you think will hold up well with the 466 engine
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Re: JD 466 engine August 03, 2009 11:38PM
Many people sell them. You want a 2 disk, probably a 3 to be durable. Look in the builders section on this site or in the for sale section. Places like TPP, Kennys pulling parts, GMS. Where are you located?
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Re: JD 466 engine August 04, 2009 12:18AM
I had my stock clutch beefed up by a builder and has worked great for over 5 years. I pull 7th gear in 9000lb class an 6th in the heavier classes at 3000rpms. A disk clutch is great but a lot of money and also check the rules where you pull.
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Re: JD 466 engine August 04, 2009 02:37AM
jd43 i take it that you have a 4320 with a 466 in it. If so i would like to give you a call by phone. I have some more question.
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Re: JD 466 engine August 05, 2009 02:21PM
I run the stock 404 with a rotary pump and 2.4 turbo. I would like to go with a 496/8.1 and an A pump in the future.
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Re: JD 466 engine August 06, 2009 06:15AM
Thats what i'm pulling with right now. i pull in a stock farm class with an 8 m.p.h rule in 5th gear. I would love to pull in a different class but my tractor want pull the sled in 6 or 7th gear that's why i want to go to the 466. I read where you said you were pulling in 6 and 7th gear. i must be doing something wrong.
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Re: JD 466 engine August 06, 2009 08:39AM
The 496 came from the factory with a P pump, so if you HAD to have an A pump then you will need an adapter. A few places make them and i think they are around $400.
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Re: JD 466 engine August 06, 2009 10:51PM
I've never heard of a 496. what tractors were they in
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Re: JD 466 engine August 07, 2009 01:25PM
a 496 is an 8.1
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Re: JD 466 engine August 07, 2009 02:41PM
Some of the 8.1L engines had a A-pump from the factory.
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Re: JD 466 engine August 07, 2009 11:04PM
496 is news to me too, where are the extra cubes coming from? crank/bore size??
thanks
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Re: JD 466 engine August 08, 2009 02:10AM
The stroke is 5.060" and bore is same as 466. Also the 8.1L 496 engines have been around since 1994.
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Re: JD 466 engine August 08, 2009 08:50PM
interesting, what model tractor/combine etc was this 8.1L fitted in? Is this a waterloo engine or german?
In europe we run 510" max for prostock, this 496" engine would be good in standard format, save all the hassle with stroked cranks etc!
I take it that this 8.1L 496" engine will accept 466" head etc?
Thanks
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Re: JD 466 engine August 09, 2009 03:31AM
The 8.1L engine is a JOHN DEERE not a GERMAN and came in alot of tractors and combines along with some other machines as well. All 8400 tractors and the late 81-82-8300 tractors had the 8.1L. 81-82-83-8410 tractors & 77-7810 tractors are some and for combines would be 9510 & 9610 along with 9550 9650 9750 and some of the 60 series combines as well. The later 8.1L engines have the common-rail fuel system on them. The late 7.6L cylinder heads are the same as the earlier 8.1L heads. Also the 8.1L crankshaft has large counter weights and has straight cut timing gears like the late 7.6L engines.
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Re: JD 466 engine August 09, 2009 04:24AM
When Mannheim Magic built in 2000-2001, it had the 8.1 engine.
Sleeves and billet pistons had to be custom made anyway, so bore was increased from 4 9/16 to 4 5/8, resulting in exactly 510 cu. in. The engine had the stock 8.1 crank, and the sleeves had a slighty reduced wall thickness, to fit in the 8.1 block, without the need to machine the block for larger outside diameter sleeves.
I am pretty sure Mannheim Magic was the first prostock in Europe to use the 8.1 engine.
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Re: JD 466 engine August 09, 2009 01:31AM
What would they have come out of? The ones I know of are some 850 dozers, 9650 combines, power units. Every one I've seen has a P pump mount.
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Re: JD 466 engine August 09, 2009 02:59AM
The earlier 7710 & 7810 tractors had an A-pump.
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Re: JD 466 engine August 09, 2009 03:56AM
Thanks for the good info. Not being very clued up on counter weights, is the heavier counterweight arrangement bad news for higher revs, for example in a prostock revving to 5500rpm ?
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Re: JD 466 engine August 09, 2009 02:24PM
These engines will not fit a waterloo row crop tractor, correct? Dont they use a different block with a different mounting pattern?
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Re: JD 466 engine August 09, 2009 05:19PM
The 8.1L bell housing bolt pattern is the same as 404 466 engines. And also the 8.1L that I used in a pro stock had the same frame bolt pattern as a 4020.
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Re: JD 466 engine January 19, 2016 12:45AM
Will the 8.1 crank physically fit into a 404 block?
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Re: JD 466 engine January 19, 2016 11:40AM
No
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Re: JD 466 engine January 19, 2016 12:19PM
I have 3. 7810 j.d.tractors and all of them have 8.1 with a pumps on them
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Re: JD 466 engine January 19, 2016 01:34PM
What prevents it from fitting in a 404? Just too much stroke? Will it fit in a 466?



Edited 1 time(s). Last edit at 01/19/2016 01:35PM by 3010JD.
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Re: JD 466 engine January 20, 2016 12:41AM
The mains are bigger diameter.
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Re: JD 466 engine January 20, 2016 01:31AM
You can have the mains turned down and then get that area nitrided. REI does it, but it isn't cheap.
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