Ford 2610 connecting rod

hillbilly2 · Apr 28, 2016

I'm replacing one rod in my 2610 diesel because it got bent when it hydro locked after going into a pond. Some may remember last weeks post in tractor talk about that.

I bought a new rod and piston from All States Ag Parts and it doesn't even fit down the bore. The bore is 4-1/8 and the rod measures 4-1/4 at the widest spot with the cap removed.

It looks like I need to get an oem rod at 3 times the cost. I'm wondering if an aftermarket piston will be different enough weight to throw the engine out of balance because I am only doing 1 out of 3 cylinders. By the way this is cylinder #2.

If anybody has an opinion please give me some advice.

Thanks

wvfarmboy · Apr 28, 2016

a good machine shop can straghten yours. had a 4100 that used to much eather and all 3 was bent and the machine shop fixed then runs like new now.

RodinNS · Apr 28, 2016

Well, whatever it is.... it's the wrong rod. Aside from that I think I'd replace the set anyway, particularly where you're buying aftermarket
rods. Used would be another option. If you insist on using the old ones I'd really want to make sure they're true......

Rod

David G · Apr 28, 2016

You have the wrong rod, I would not worry about replacing the set, nothing wrong with changing 1 piston and rod.

Others here can tell you the differences.

Ken(Ark) · Apr 28, 2016

I'm wondering if an aftermarket piston will be different enough weight to throw the engine out of balance because I am only doing 1 out of 3 cylinders. By the way this is cylinder #2.

If anybody has an opinion please give me some advice.

Thanks

Digital scales are cheap these days . $11.32 delivered for a 500 gram max in .01 increments , that's about 1 pound . Most good pistons leave the factory within 2-3 grams high to low , 5 - 10 grams on a cheap set . A dollar bill weighs a gram and these scales will measure 1/10th of a gram . You can't get it calibrated (set to zero ) if there is a slight breeze . You can swing you hand down stopping an inch away and see the digits go wild .

You can weigh your old rod vs the replacement and see if it is in range . I have a jig to measure the small end vs big end but the overall weight will get you going . Even on a cheap rebuild I get my reciprocating components equaled out .

http://www.ebay.com/itm/0-01gx500g-...470001?hash=item464782dfb1:g:3mkAAOSwX~dWlxxH

Ken(Ark) · Apr 28, 2016

P.S. , it would not let me edit this soon , If you buy something from ebay and do not pay close attention it may come straight from China and take 3 - 4 weeks . I usually select US Only and pay a dollar or two more but get it in less than a week .

Destroked 450 · Apr 28, 2016

(quoted from post at 19:20:43 04/28/16)

I'm wondering if an aftermarket piston will be different enough weight to throw the engine out of balance because I am only doing 1 out of 3 cylinders. By the way this is cylinder #2.

If anybody has an opinion please give me some advice.

Thanks

Click to expand...

Digital scales are cheap these days . $11.32 delivered for a 500 gram max in .01 increments , that's about 1 pound . Most good pistons leave the factory within 2-3 grams high to low , 5 - 10 grams on a cheap set . A dollar bill weighs a gram and these scales will measure 1/10th of a gram . You can't get it calibrated (set to zero ) if there is a slight breeze . You can swing you hand down stopping an inch away and see the digits go wild .

You can weigh your old rod vs the replacement and see if it is in range . I have a jig to measure the small end vs big end but the overall weight will get you going . Even on a cheap rebuild I get my reciprocating components equaled out .

http://www.ebay.com/itm/0-01gx500g-...470001?hash=item464782dfb1:g:3mkAAOSwX~dWlxxH

Those scales aren't going to do him much good because the rods in that engine weigh around three lbs each, their big and heavy.

Destroked 450 · Apr 28, 2016

Not sure what rod they sold you but a rod for that engine shouldn't be hard to get. 2610 diesel uses a 175ci engine which is the same engine used in early 3000's and 2600's that had a 4.2" bore and 4.2" stroke. Ford used the same rod in all three cylinder engines that came on 2000, 2600, 2610 3000, 3600, 3610, 3910, early 3930, 4000, 4600, 4610, early 4630 and also in 4 cylinder non turbo tractors up until the early 90's. It's a very common rod for a ford tractor.
A name brand aftermarket piston will be close enough in weight to be ok, not sure about some of the off shore stuff.
Did it damage the old piston?

hillbilly2 · Apr 29, 2016

I will try calling New Holland dealer today to get an OEM rod. I see they also sell factory reconditioned rod from New Holland.

My dad has a body shop so I will weigh the pistons on his paint scale to see if they are reasonably close.

It doesn't appear the piston was damaged, but if there was enough force on it to bend a heavy duty rod like that I would feel better with the new one.

Thanks for all the replies everyone.

Ken(Ark) · Apr 29, 2016

Those scales aren't going to do him much good because the rods in that engine weigh around three lbs each, their big and heavy.

I did not realize those rods were so heavy . I looked it up at 4.60 pounds . Ouch , those scales are $100 and up which would be impractical on this project .

markct · Apr 29, 2016

Would the rod for a 4400 gas be the
same? I got all the pieces to the motor
from one of those in boxes with a bad
block, would send him one of them very
reasonable if that would work

Sean in PA · Apr 30, 2016

(quoted from post at 22:44:43 04/29/16) Would the rod for a 4400 gas be the
same? I got all the pieces to the motor
from one of those in boxes with a bad
block, would send him one of them very
reasonable if that would work

If it's a pre-4/1/68 4400 engine then it would be the same, but at 4/1/68 they switched the 4000 series gassers from 192 to 201 ci and the bore went from 4.2 to 4.4 inches, so the later ones won't fit in a 4.2inch bore 2610 engine.

Destroked 450 · Apr 30, 2016

Rods are the same, gas or diesel and cubic in displacement doesn't matter.
His engine should be a 175 and must have a 175 piston. Ford used the same rod no matter what stroke the engine had, they moved the wrist pin location on the piston requiring a different piston for each cubic inch change.

Sean in PA · May 3, 2016

(quoted from post at 09:45:11 04/30/16)
Rods are the same, gas or diesel and cubic in displacement doesn't matter.
His engine should be a 175 and must have a 175 piston. Ford used the same rod no matter what stroke the engine had, they moved the wrist pin location on the piston requiring a different piston for each cubic inch change.

I'm just curious, if they all used the same rods, then why are there different part numbers on the parts site for the rods for 4.2 bore vs. 4.4 bore and for diesel vs. gasoline?

Ken(Ark) · May 3, 2016

(quoted from post at 17:43:59 05/03/16)

(quoted from post at 09:45:11 04/30/16)
Rods are the same, gas or diesel and cubic in displacement doesn't matter.
His engine should be a 175 and must have a 175 piston. Ford used the same rod no matter what stroke the engine had, they moved the wrist pin location on the piston requiring a different piston for each cubic inch change.

Click to expand...

I'm just curious, if they all used the same rods, then why are there different part numbers on the parts site for the rods for 4.2 bore vs. 4.4 bore and for diesel vs. gasoline?

AERA Connecting Rod Manual download - Has all of the rod specs for all manufactures - auto or agriculture -Page 137 - Looks like all of the 3 cylinders Fords use the same rod . 158 / 175 / 183 / 192 / 201

Big end , pin size , center - center , etc .

Good info to have on file . I could not find my book but it is available as free download .

http://r.search.yahoo.com/_ylt=AwrB...nual.pdf/RK=0/RS=Py81h5pqetuMznE0k_twb6KVvDY-

Ken(Ark) · May 3, 2016

Here is the AERA Cylinder Head & Block Manual with lots of specs you won't find anywhere else , Auto & Agricultural .

http://r.search.yahoo.com/_ylt=AwrB...nual.pdf/RK=0/RS=B_Et3EyjlxDe8HESbeiTHPk_Qiw-

Destroked 450 · May 3, 2016

(quoted from post at 15:43:59 05/03/16)

(quoted from post at 09:45:11 04/30/16)
Rods are the same, gas or diesel and cubic in displacement doesn't matter.
His engine should be a 175 and must have a 175 piston. Ford used the same rod no matter what stroke the engine had, they moved the wrist pin location on the piston requiring a different piston for each cubic inch change.

Click to expand...

I'm just curious, if they all used the same rods, then why are there different part numbers on the parts site for the rods for 4.2 bore vs. 4.4 bore and for diesel vs. gasoline?

Don't know why they have different numbers for some of the rods, in my factory service manual and engine data book they both give specs for one rod. Personally I have a 201 diesel with 192 gasser rods in it and when I rebuilt my 4000SU 201 diesel it had a bad rod, I grabbed one from a 256 four cylinder we had torn down and used it, it speced the same as the 201 rod. Only ones I know are different are for the 256 and 268 turbo engines, they have a oil channel going from the rod bearing to the wrist pin and the wrist pin is 1/8" larger, 1 5/8" verses 1 1/2" on non turbo rods.

Edit: I do remember the service manual saying that around 1969 they made some changes to all engines, different cam, injectors and a beefier rod I believe (have to find my book and read upon it). It may have changed the weight of the rod but all measurements, length, bearing size, pin bore is still the same.
All my tractor engines are 69 or newer but one and all my spare engine parts are 69 and newer so I've never given it much thought.

RodinNS · May 4, 2016

I think there were a few changes in the rods over the years and a couple of variants. As mentioned, the turbo rods ARE different. I think the
3-183 also had a different rod but I'd have to look. Most differences would be generational outside of those exceptions.... which is part of
the original reason I suggested he change all 3 rods. Many things with those engines can be upgraded to newer style parts IF and only IF all
matching components are moved ahead together. You can't mix and match pistons, etc.

Rod

mrfabjr · May 6, 2016

I have a lot of used rods for a lot of different ford tractors. If you are lookin for a used on I will see if I have one with the correct part #.

Thanks
Floyd

Ford 2610 connecting rod

hillbilly2

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wvfarmboy

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RodinNS

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David G

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Ken(Ark)

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Destroked 450

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hillbilly2

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Destroked 450

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Sean in PA

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