1958 ford 800

[jdeem]

I have found metal shavings under the valve cover and the 2 center pistons have no compression. this happened all at once but tractor will still run but does miss on the 2 center cylinders where they have no compression.. could it have jumped time or do any of you have any idea of what could have happened?

 

[azranger]

Sounds like a broken ring

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[mkreitler]

THE METAL SHAVING are RINGS no doubt pull the head off and take a look at those cylinders may be a hole in the pistons also,it's telling you REBUILD ME easy tractor to rebuild parts easy to find and reasonable cost.

 

[Soundguy]

I have found metal shavings under the valve cover and the 2 center pistons have no compression. this happened all at once but tractor will still run but does miss on the 2 center cylinders where they have no compression.. could it have jumped time or do any of you have any idea of what could have happened?

1, 00 series ended in mid 57 it's either an 801 or not a 58

2, broken ring parts would be hard to make it to the valve cover area.

3, jumping time on a timing gear ( not chain ) machine is very, very hard.

4, what is the valve train doing on the middle 2 cyls.. including the push rods and lifters you can see from the side covers.

sticking intakes on these from cruddy gas is not terribly common.. but not rare

 

[mkreitler]

Hello Soundguy,I used to work at a dealer in southern Missouri and sometimes the almost impossible happens.I had valves spit out the exhaust ports,but that only happened once on my super stock pulling tractor.That is why I said pull the head off look at the cylinders and before you pull the head off like you said check PUSH RODS and LIFTERS.Sence there was shavings under the valve cover do you also think it maybe worth a look at the bearings just to be on the safe side. All I mean with the age and who knows how it was maintained if it was bought used.Any time a tractor came into the shop where I worked with a problem like this it was REBUILT before it went back to the customer for warrantee reasons. Granted it may be a simple fix and no if the customer elects to go the fix only the problem then if something happens afterward it was on them. But you know that dealers are in it for the money not for the glory.Maybe that is one reason they come and go this day and time.I even had a CASE-IH dealer tell me we don't do rebuilds anymore, people trade for new when that time comes. That's what nice about this forum,it's people helping people. Dear SOUNDGUY you have a nice collection of THE GOOD STUFF.

 

[Soundguy]

bottom line , if shavings are under the VALVE COVER , i'd look at the items under the valve cover!

Kinda hard to get shavings fromt he main or rod bearings to up under the valve cover!

if it was a knew to me machine.. i'd look it over and see what was up with the valve train.. if it ran.. oil pressure and sound will tell you alot about main and rod bearings.

if i was going thru her for a restoration.. then she'd all be coming apart anyway... new bearing shells, turned crank..e tc..

 

[mkreitler]

All I said was pull the head off you have to take the valve cover off to get the head off rite.So like you said it is hard but no one has said how big the shavings are,it may have been something that was started some time ago and has got to this point. I agree on if it ran and had good oil pressure that all depends on what you call good oil pressure.I have seen any where from 10#to 70#in some of those engines.We had an 861 powermaster,and an 4000 gas that ran those # at 160 degree water temp. So true you have a point all I mean is to be on the safe side just to make sure it may be worth it.No it is not necessary for one to do it. Also say if you tear it down and found nothing wrong CRANK GOOD,BEARINGS GOOD ECT.Then clean everything up and but it back together with the SAME BEARINGS. **** I even done this on My A mod stock car engine I also have used head gaskets over.Also these tractor engines run LOW RPM,so you don't have to run a lot of oil pressure and everything is happy.I remember when we used the 4000 on an 8" hammer mill every day.The motor was gone thru every year.But if you ran hammer mills and also did a lot of other work and pulled it as hard as you could it surprised me that it held up as good as it did.Thank GOD for DIESELS. All things considered you have a good point and I agree with you on what you say.

 

[deerseeker001]

Welcome from Wisconsin

 

[Soundguy]

I'd never re-use a head gasket unless i want a problem to occur.. and I wouldn't pull a head before I did other observation and testing.

once you pull the head you miss the opportunity at doing things like initial compression tests and leakdown tests.

All I said was pull the head off you have to take the valve cover off to get the head off rite.So like you said it is hard but no one has said how big the shavings are,it may have been something that was started some time ago and has got to this point. I agree on if it ran and had good oil pressure that all depends on what you call good oil pressure.I have seen any where from 10#to 70#in some of those engines.We had an 861 powermaster,and an 4000 gas that ran those # at 160 degree water temp. So true you have a point all I mean is to be on the safe side just to make sure it may be worth it.No it is not necessary for one to do it. Also say if you tear it down and found nothing wrong CRANK GOOD,BEARINGS GOOD ECT.Then clean everything up and but it back together with the SAME BEARINGS. **** I even done this on My A mod stock car engine I also have used head gaskets over.Also these tractor engines run LOW RPM,so you don't have to run a lot of oil pressure and everything is happy.I remember when we used the 4000 on an 8" hammer mill every day.The motor was gone thru every year.But if you ran hammer mills and also did a lot of other work and pulled it as hard as you could it surprised me that it held up as good as it did.Thank GOD for DIESELS. All things considered you have a good point and I agree with you on what you say.