A quick fix when having MCV pump problems on your International Harvester

[@JimCulp-n5o]

Thank you for posting this I have a 1466 that I love and was plowing with it about two weeks ago when I parked it for the night and the next day everything was fine but I had no Steering or TA. I talked to the local IH dealer and he said that I should bring it in and he would have the guys tar into it and find out what it was going to take to fix that old thing up. Will I may not be the sharpest tool in the shed but I could sure figure out that at a $100 an hour for them to dig around and see what all needs to be replaced with an 52 year old tractor was going to cost more than I could afford. After watching your video for $7 and some hydraulic hose I had I finished up the plow. Thank you for the information

[@MarkNechanicky-x3n]

Thank you so much for the advice from North Dakota! I had a 756 that had sat for 8 months and had no steering or clutch. Tried some remedies that didn't help. Found your youtube video, made up the hose and solved the problem. Took a couple minutes to work but IT WORKED! Thanks again for the info.

[@outbackladas]

Great tip, really helped me out. Was having this exact problem with my 1066 and your little trick worked and helped me out of a tight spot, thanks. Regards from Down Under.

[@johnc5874]

We have a 706 dsl, having same problem. My father bought this tractor new in 67-68. Replaced this toy like plastic check valve. Worked for not even a full season(summer). We're down here in Virginia where it doesn't get quite that cold here. Thanks for the tip.

[@redpower1086]

Thanks for sharing this information. The 86 series had what’s was call a super charge line from the factory I think it does the same thing

[@chuckschhultz7092]

thanks.. I have a 260a with a back hoe the swing runs from the mcv pump with the steering, and brake I'm going to try this.

[@richsmith5575]

I like the idea of the hose to prime the MCV. I have an 806 and the port for the hose to the MCV seems to be in a different location than on your 706. If I sent a picture of where I think it is on the 806, could you confirm? Thanks it would be a huge help to me! Also, I’m not sure how to send a picture on KZbin, if you know how or are comfortable with an email, just let me know. Thanks again!

[@jimmyjarreau1052]

I live down south and I have a 1066 if the temperature goes below 50° mine does the same thing but if you let it sit and idle for 20 minutes it’ll go back to working with no problem

[@diavikexpress8370]

Having a problem with my 806, no steering, ta, but the brake works on one wheel, went through mcv valve, new springs, orings. and a new pump, same as before, gonna try the pressure relief today, Im down here south of Fargo 50 miles. been up in your area hauling fertilizer for years. you finish your puller?

[@barmes1]

I have a question what about the steel line that goes to the MVC pump

[@Lenzer50]

My brother has a 1967 706, he has hydraulic steering but no hydraulic lift or tilt, any idea what would cause that?!?

[@josephminer2623]

@chris dieterbilt what size plug was originally where the hose was?

[@bigdreamsonsmallacres]

Just subscribed and I'm doing some research. I bought a 1486 that had sat for 21 years. Full of fluid, no light on the dash (light does work, I checked) but I have no steering. I can't even move the wheel back and forth more than a couple inches. But when I do the steering will wobble back and forth just a little bit. If I try this hose and I still have no steering what would be my next plan? There is some surface rust on the steering cylinder but not enough to keep it from moving. Should I loosen the lines and see if I get any air/fluid from them? Thanks for any help!!

[@greatnorthernn-3154]

Jack up the front wheels and check for a spindle that is seized with rust. I've seen this happen on a 1066.

[@scottmccullough978]

Hello, I'm having the same problem with my 1066. There is not a plug to remove on mine. There is a line already in the same spot that you put the one in the video in that goes up to whatever it is the clutch goes into.

[@chrisdieterbilt2515]

Does your tractor have a torque amplifier? Some tractors that have had the TA deleted, this trick will not work on those

[@scottmccullough978]

@@chrisdieterbilt2515 yes it does have a ta. Just my luck. Was told by a ex dealer that the 86 series that it is plumbed in factory

[@chrisdieterbilt2515]

@@scottmccullough978 interesting, I think the only tractors I've seen set up like that were tractors that had a TA delete. Learn something new every day I guess!

[@tunasperez8053]

Oye ablo desde México tenemos un 756 q le susede lo mismo onde van los agujeros

[@ihus9950]

Great info Bud, Thanks👍

[@jreding132]

thanks! lost my steering suddenly on my 806D and change the hydraulic filter...what's the coupling that attaches to the rear?

[@charlievanhoose5625]

1486 rebuilt valve body and new mcv pump. now no steering, soft clutch. is the plug you take out where the relief valve is at?

[@nalley6815]

Ugh. I don’t even want to hear about an 86 lol. I had a 1086 that had absolutely awful steering. Actually good brakes. Jumpy clutch. Hardly any flow to the scv’s. 3 point worked fine. Both pumps replaced. Fixed nothing lol. Wished that tractor would’ve burned

[@scottrimmey8486]

Can you tell me what all changes need done to feul tank for this engine swap...? Please

[@ajkemer]

You at all familiar with a 3514 hydro drive I’m having issues with low to no pressure will not move up a hill

[@chrisdieterbilt2515]

Sorry but I don't have any experience with the hydro tractors, only a couple running around in our area.

[@nalley6815]

Did you ever get anywhere with this project? Trying to build a 1066 hot farm over the next couple years

[@expendablepawn1]

Thanks for the Tip.

[@MrFarmboy1964]

Well that worked..........but now I have hyd oil leaking down from behind the flywheel out the bottom inspection plate. What did I blow? and do I now need to split the tractor to fix it?

[@chrisdieterbilt2515]

There is nothing in the flywheel housing that would leak as a result of this procedure. What model of tractor are you working with

[@MrFarmboy1964]

@@chrisdieterbilt2515 it is a 706 ......where else would the hyd. leak come from other than the input shaft in order for oil to be coming out that inspection opening? Could supercharging the system caused the oil to pass the TA bushings if worn and push out the seal? any advice is surely appreciated. TIA

[@jesusmanuelpaheco2240]

tengo un farmall 706 y en todo momento al estar encendido la bomba mcv se mantiene con un zumbido bastante fuerte qu nunca termina, todo funciona a la perfeccion pero es bastante molesto el ruido. a que se debe esta falla ojala pudieran ayudarme.

[@krink4you]

Is the plug in the same location on the 1066? My 10 seems to have a hose running to the clutch booster

[@jacobbenfer1464]

My remote loads the tractor up but doesn't produce fluid

[@TorturedPeace]

lil gem!

[@xavierwillis2385]

what if everything works but the steering

[@calebhysel9724]

I've got the same problem. Figure anything out?

[@gavinspoor4005]

I’ve got the same problem!

[@zackvahlkamp5044]

There is a relief valve just for the steering in the mcv lower right. Also the priority valve can stick.

[@robs_garage0278]

@@zackvahlkamp5044 i got a ih 2444 that the hydraulics are acting so weak with the 3 point all the way down the power steering works great but when i put the 3 point up the power steering goes away and the 3 point can't pick up the attachments

[@bscott9495]

When this is done your adding possibly 2200 psi to a system that is only suppose to have 350 psi max in it. No wonder you have leaks everywhere now.

[@chrisdieterbilt2515]

You aren't using the pressure to energize the system, your using the flow. There is alot more than 350 psi flowing through the MCV system, if that's all you have then you have some major problems

[@TheWclemons38]

@@chrisdieterbilt2515 on 1066 run hose from drain plug to remote or is there another way if hose isn't available?

[@courtneyhirsh2271]

Bleed plug in front end of mcv

[@TheWclemons38]

On the 1066?