Ford 7710 losing water

[td25c]

Well I just got don repairing our 7710 tractor.It had developed a bad internal water leak in the engine.While using the tractor it lost all the coolant in about one hour filling the oil pan.After removing the engine I found a weep hole inbetween the #3 cylinder and the camshaft.The engine always ran good and did not use oil.I repaird it by drilling&tapping the hole .I used a 5/16 set screw and locktite to plug it.I guess the block was a bad casting that went through.I also put 15 P.S.I. of air on the block to check for leaks before reassimbaly.It works fine now.

[d4c24a]

sounds like the classic ford problem of porous blocks be prepared for more leaks

[cps]

d4c24a is Right, classic ford problem! the earlyer ford blocks were the worst for it i belive!

[td25c]

Howdy d4c24a and cps.I forgot that England and Ireland had alot of ford tractors.Our 7710 is a 1983 model,I wounder when this block problem started?I also have a 1972 ford 4000 that has over 10,000 hour's and the engine has never been apart.Other than this problem I like ford tractors .I cant remember if it was in England or Ireland ,I saw pictures of a early 1970's ford 9600 with the front wheel assist option.I never saw one hear in the U.S. Thank's for the imput .

[cps]

As far as i know 25c the 10 series were mostly prone to this, not sure what years but i'l ask about (the old hands)! as for the 4000 a great little tractor, making great money around here for colectors items almost!

[td25c]

As far as i know 25c the 10 series were mostly prone to this, not sure what years but i'l ask about (the old hands)! as for the 4000 a great little tractor, making great money around here for colectors items almost!

No dout about it, Those ford 4000 tractor's are tough.our's has paid for itself many times over.It just wont quit.

[stumpjumper83]

yeah my cousin's 4610 developed a pin hole in a cylinder liner, but he has used it for like 10 without any problems so a little now and then is ok I guess. I know here in pa, you dont see too many 70hp and up fords. There are some bigger new hollands showing up though, but they are a cnh tractor, not all ford,case, or ih.

[td25c]

yeah my cousin's 4610 developed a pin hole in a cylinder liner, but he has used it for like 10 without any problems so a little now and then is ok I guess. I know here in pa, you dont see too many 70hp and up fords. There are some bigger new hollands showing up though, but they are a cnh tractor, not all ford,case, or ih.

My nieghbor had a 7700 that got a pin hole in the cylinder.He had it" bored out and sleved", it worked.I can remember as a kid sitting around the dinner table listening to grandpa,uncle's ,and dad talk about how thier would always be ford tractors because they had ford motor company behind them.Wow! times sure change wether we like it or not.

[racsan]

we had a '64 4,000 wish it was still with us, id put it in ag shows, no need to restore when you have a rare bird. theres thousands of JD "A"s but ive never seen another 4000 gas utiity wide front 5 speed. the closest ive seen was a mid 60's tricycle front with the select-o-speed. my grandfather had bought the tractor new. i dont have and digital photos of it. oddly enough i hated it growing up, that dual stage clutch was a pain when your only 75 pounds and you dont have much leg stretgh to overcome the pressure plate/clutch return spring. when i got to be about 17 i could drive it without pulling wheelies or stalling it out.

[td25c]

we had a '64 4,000 wish it was still with us, id put it in ag shows, no need to restore when you have a rare bird. theres thousands of JD "A"s but ive never seen another 4000 gas utiity wide front 5 speed. the closest ive seen was a mid 60's tricycle front with the select-o-speed. my grandfather had bought the tractor new. i dont have and digital photos of it. oddly enough i hated it growing up, that dual stage clutch was a pain when your only 75 pounds and you dont have much leg stretgh to overcome the pressure plate/clutch return spring. when i got to be about 17 i could drive it without pulling wheelies or stalling it out.

That '64 sounds rare.I never was around the select-o-speed.I guess it was fords first powershift.I heard they had trouble with the early select-o-speeds.We always had good luck with newer "duel power" option.

[Richardjw~]

Its a good idea to put corrosion inhibitor in as well, what I have done is put in good quality anti-freeze (which also includes C/I) and also added the Fleetguard stuff as a double insurance against the block going porous. Someone recommended putting in distilled water; not sure if it helps......as I'm sure you're aware the actual cause is from air bubbles in the coolant actually sticking to the water jacket and the vibration from the engine causing them to eat in to the block.....the attached explains better, I think

As mentioned here already a good "reaming" and sleeving should take care of it. Our '71 4000 went porous, we put in a new 10 series engine in it in '87 and within a few 100hrs it had gone again. So we sleeved it and was o.k. up until the time we sold it in '98

[td25c]

That is good information Richardjw~.I am familiar with fleetguard products,I will put some inhiptor in the 7710.In my experiance this problem occurs mostly in "wet sleve" engines,the odd thing I noticed is they pit worse on the exaust side of the engine.Viberation I guess?Sounds like this ford block problem started with the 10 siries tractors.I wounder where the blocks were cast? I hope the later models dident have this problem.

[Richardjw~]

I don't think the problem started only with the 10 series.....the problem being that by the time 10 series came around Ford had woke up to the fact and decided to react to it. When I worked in a Ford dealership during the late '80s whenever we fitted a replacement engine we fitted a coolant corrosion inhibitor filter as a matter of course.....it maybe became more pronounced as (as with most companies) Ford were trying to get even more out of an old casting and of course customers were pushing more out of their machines....Like I said our '71 4000 went porous, it was produced some 12 yrs pre-10 series, it was just something that was inherent to the engine, but when you dig around other motor manufacturers have their problems....for what it's worth I hear that the legendary green product has a similar problem with a simlar kind of corrosion around the wet injector sleeve of the high pressure common rail engines and ends up in the diesel system and ultimately in the combustion chamber.

the end of the day it's a Ford "problem" but the product still commands a high resale value so in itself says something about the value of the product...a pain when it happens, but in the long run worth the repair

[td25c]

If you keep a piece of equipment long enough,something will go wrong with it.I cant complain about the service we have gotten out of our ford tractors over the years.Ford tractors hold good resale value in my area ,as It sounds like they do all over the world.Thanks everyone for the imput.

[Neil D]

This is a common problem with all Fords but for some reason the 10 series was more affected than the rest, the cure was the fitting of oversize liners and using corrosion inhibitors in the coolant.

It may surprize you to know that a lot of the other manufacturers suffer from this problem. I know of John Deeres that have had porous blocks!!

Neil