Good Sam Club Open Roads Forum: 1986 vs 1987 Ford 460
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 > 1986 vs 1987 Ford 460

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atsrmf

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Posted: 06/06/18 07:52pm Link  |  Quote  |  Print  |  Notify Moderator

If you have a 1987 motorhome with a Ford 460 driveline, make sure you know what year the driveline is before you order engine parts. It is not uncommon for 1987 motorhomes to have a driveline that is a year older, so verify first.
With Ford, if the distributor rotor is like a finger, the engine is a 1986. If you replace the fuel pump/sending until with an '87, the gas gauge will read empty when full if the engine is a 1986.
In 1986 the sending unit was 75 ohms empty, 10 ohms full. In 1987 it changed to 10 ohms empty and 165 ohms full, and the unit looks the same and will fit. I bought mine with the wrong unit already installed and finally figured out what was wrong!
I plan to keep the wrong unit as an emergency spare after I replace it.

ScottG

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Posted: 06/06/18 08:07pm Link  |  Quote  |  Print  |  Notify Moderator

It's common for any class C to have a chassis a year older than it's finished model year.


Scott, Grace and Wesly
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path1

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Posted: 06/06/18 09:49pm Link  |  Quote  |  Print  |  Notify Moderator

Good find...I've been caught in same problem couple times. I now bring in my VIN number. Last time I got a part for my 03 f350 the break line hose didn't fit. Turns out mine needs a part that has higher GVW rating. Guys at O'Rielly's just go by part number computer says and don't look at the foot notes or details before grabbing a part. I do have a "parts" manual for my Dodge that has a part number for every part. Would love to find a "parts" manual for my 03 Ford.

Chris Bryant

Arden, North Carolina

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Posted: 06/07/18 08:33am Link  |  Quote  |  Print  |  Notify Moderator

They were using the carburated 460 in class A units into 1990, sporadically.


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RLS7201

Beautyful Downtown Gladstone, MO

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Posted: 06/07/18 03:56pm Link  |  Quote  |  Print  |  Notify Moderator

Chris Bryant wrote:

They were using the carburated 460 in class A units into 1990, sporadically.


Ford F53 chassis 1988 to 1997 was EFI only.
Oshkosh 460 chassis up to 1990 had a carb.
Oshkosh 460 chassis one year only, 1991 was EFI.

Richard


95 Bounder 32H F53
460/528 stroker
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atsrmf

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Posted: 06/08/18 09:21am Link  |  Quote  |  Print  |  Notify Moderator

My 1987 Gulfstream has a John Deere chassis, and is carbureted. I wish it was EFI, but you don't have that choice with a used vehicle. The State of California won't let me retrofit, either, to EFI or it won't pass smog. Not due to tailpipe emissions, but due to the law that says no modifications allowed. I had the carb rebuilt by a guy who knows what he is doing, and it runs like it should, there is no lack of power at all. The mileage will always suck, however!

atsrmf

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Posted: 06/08/18 09:25am Link  |  Quote  |  Print  |  Notify Moderator

The pump/sending unit I ended up buying is part # SP2015H, you can Google it. This should have the correct sending unit, and has the extra port for the generator gas feed. When I have the old unit in hand I will see if the correct sending unit can be installed without too much modification, if any. It will made a good spare.

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