Mystery engine
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Mystery engine
I purchased a 1986 F250 about a year and a half ago. I was told the engine was a 460. I replaced a few parts here and there, and they fit with no problem.
Recently I have had to replace the timing cover and water pump. Since I was into it, I decided to replace the fan clutch as well. When I went to NAPA I got a new clutch, and took it home, only to find that the shaft was too large, and the fan blade did not fit over it.
I do not have a pedigree for the engine, but I believe it is at the very least a big block. The fan cluch I had on it has a part number stamped on it. It is 27103097. The parts store was not able to find it in their cross references. I looked for some identification on the engine block. I found something resembling a sequence just above the starter. That number looks like 8Y-3160, but I cannot make a lot out.
Is there a way to find out what I have. It is possible they fixed it "frankenstein" style, and slavaged parts from someting else. Or I believe it might be either a smaller engine, or earlier year. Does anyone have any suggestions.. Thanks in advance........
Recently I have had to replace the timing cover and water pump. Since I was into it, I decided to replace the fan clutch as well. When I went to NAPA I got a new clutch, and took it home, only to find that the shaft was too large, and the fan blade did not fit over it.
I do not have a pedigree for the engine, but I believe it is at the very least a big block. The fan cluch I had on it has a part number stamped on it. It is 27103097. The parts store was not able to find it in their cross references. I looked for some identification on the engine block. I found something resembling a sequence just above the starter. That number looks like 8Y-3160, but I cannot make a lot out.
Is there a way to find out what I have. It is possible they fixed it "frankenstein" style, and slavaged parts from someting else. Or I believe it might be either a smaller engine, or earlier year. Does anyone have any suggestions.. Thanks in advance........
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Joined: Nov 2007
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From: Denver Metro Area, CO
Below is what the parts book says your radiator fan & clutch look like.
For the clutch, it depends on if you have A/C or not:
E9TZ-8A616-K (replaced E3TZ-8A616-l in 2/90); Marked E3TA-NA; Fits 83/87 F250/350 w/460 engine without A/C
E9TZ-8A616-L (replaced E3TZ-8A616-P in 10/91); Marked E3TA-UA; Fits 83/87 F250/350 with A/C
Bob Allen Ford in Kansas has both; Tel 913-381-3000
.
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For the clutch, it depends on if you have A/C or not:
E9TZ-8A616-K (replaced E3TZ-8A616-l in 2/90); Marked E3TA-NA; Fits 83/87 F250/350 w/460 engine without A/C
E9TZ-8A616-L (replaced E3TZ-8A616-P in 10/91); Marked E3TA-UA; Fits 83/87 F250/350 with A/C
Bob Allen Ford in Kansas has both; Tel 913-381-3000
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pedant
Joined: Jan 2008
Posts: 23,576
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From: EXTREME southwest CT
So you're saying the fan clutch will bolt to the waterpump, but the fan will not fit over that flange from the rear first?
I have changed my fan clutch MANY times and never encountered this.
(I have no A/C by the way)
I have changed my fan clutch MANY times and never encountered this.
(I have no A/C by the way)
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That's correct. The diameter of the shaft coming from the clutch is 2.25 in. The ones I were told were replacements were slightly larger and I couldn't fit my fan blade over it to bolt it to the clutch. The engine I have came with AC and an air pump. It looks like it was factory installed, but the odometer reads over 600K, and I doubt the engine is original. There is also what looks like an FE stamped on the pass side just below the valve cover.
Looking at some of the other posts, I also know the manifold is below the valve covers,and I have the original service manuals for the 86 and the diagrams look like what I have in the truck.
I am almost to the point where it might just be easier to get a fan blade with a larger opening, and go that way. But I am curious as to what I really have in case I come to the point I want to tear everything down..
Looking at some of the other posts, I also know the manifold is below the valve covers,and I have the original service manuals for the 86 and the diagrams look like what I have in the truck.
I am almost to the point where it might just be easier to get a fan blade with a larger opening, and go that way. But I am curious as to what I really have in case I come to the point I want to tear everything down..
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 40
From: EXTREME southwest CT
Welcome to the forum bcarl. 
If the timing case and water pump fit, it is definitely a 385 series engine.
I would bring the fan clutch back to NAPA and compare it to one of the same, or the non A/C version.
See what the counter guy has to say about it not fitting your application.
If the timing case and water pump fit, it is definitely a 385 series engine.
I would bring the fan clutch back to NAPA and compare it to one of the same, or the non A/C version.
See what the counter guy has to say about it not fitting your application.
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