Rebuilt the 60's engine new sleves, pistons, rings rod and main berings,valves,valve seals, guides, springs, gaskets,had the head plained to clean it up and level it and had the valve seats ground.The only thing I can think of is when I broke it in I just used Pensoil 30 when the book says to use 10 couldint find any so Im thinking the rings might not be seated yet ive ran it for about 10 hours so far and about 5 of those were under a load any suggestions would be greatly appreciated thanks.
- Thread starter Lee S.
- Start date
Brian Jasper co. Ia
Well-known Member
Does it smoke all the time or just start up? I did a full overhaul on my 60 and it blows a puff of smoke on a cold start up. It also doesn't have valve stem seals on it. All I've ever done with it since overhauling is go on tractor rides. Can't really say it uses any measurable amount of oil. I use 10-30 in mine.
You might try putting it on a PTO dyno and load it up good.
You might try putting it on a PTO dyno and load it up good.
It puffs a fairly big cloud every time I start it up hot or cold it doesint smoke mutch when under a load but at an idle hot or cold it puffs a little smoke also just after I rebuilt it it would spit a little oil out of the exhaust it also did that before the rebuild but it stopped doing that after a few hours of useing it thanks.
Larry from MD
Member
If its puffing ie only one cylinder smokeing i would check over the valve ajustment now that it has run some.
Brian Jasper co. Ia
Well-known Member
I get the good puff of smoke starting, but thats it. Did you check ring end gaps and piston to bore clearance? You might look at the plugs. If it's only one cylinder, you see a wet oily fouled plug. What are you running for oil pressure? If you have it set too high, you'll get more oil on the cyl walls than needed and the oil could get past the rings.
I started it up for the first time in 3 weeks yesterday and it hardly smoked at all but started it up this morning and it puffed a big cloud I checked the plugs before I started it all 4 seamed to be fairly dry I have an Oliver 66 oil gauge in it and at 1500 rpms it pegs the needle hot or cold but at an idle when hot its about half way in the work range ive got the oil pump shimed to .004 thinking about changing it to .006 I had it at .006 before the rebuild but at an idle it would drop in the low range on the gauge but it stayed in the work range at all other rpms I think the oil is coming from the head but im not sure I have cheked the valve clearance and its ok thanks for all the help.
Anonymous-0
Well-known Member
Well I think you might be correct on the oil going past the valve guides. What seals did you use, how much clearance is there on the intakes? You might want to pull the manifold off and shine in the intake ports and see how wet the intake valve stems are. Kind of like a car ahead of you at a red light. As soon as the light changes a puff of blue smoke and then it is O. K. ?
J.Wondergem
Well-known Member
- Location
- Rockford, Mi.
You might want to take a compression check of all the cyinders and compare, to be sure you didn't break a ring. If you installed chrome rings, it"ll take a long time to break in.
Anonymous-0
Well-known Member
I don't think that is your problem. Have you done a vacuum check of the engine? Did you look in the manifold? What kind of valve seals did you use and where did you install them?
I havent done a vacuum check I dont know how to but would like to know how to. Havent looked at the valve stems yet but the valve seals are just small rubber washers that slip on the intake valves as far as I know. The book doesint call for any seals on the exhaust valves and the gasket set I got from Maibach Tractor only had 4 valve seals thanks.
Anonymous-0
Well-known Member
Well you are making progress. Now how are you going to correct the problem? How much oil flows off the ends of the rocker arms. Find me on the HPOCA site and send me a P M with a phone number.
Were the rings installed correctly?
One piece oil control rings? Not using a bevelled compression ring? Not two types of compression ring fitted in wrong places?
Not got over-sized rings by mistake?
Is the oil a mineral or synthetic?
This is blue smoke, presumably? (not running too rich?)
One piece oil control rings? Not using a bevelled compression ring? Not two types of compression ring fitted in wrong places?
Not got over-sized rings by mistake?
Is the oil a mineral or synthetic?
This is blue smoke, presumably? (not running too rich?)
Yes the rings were installed correctly the oil ring is a three piece the rings, pistons and sleves are a set that Maibach Tractor sells for the 60s im useing regular sae 30 not synthetic the smoke at start up is white and gets darker over time and no their not oversized rings.
OK I pulled the valve cover off. The exhaust rockers dont have any more oil dripping off of them than the intake rockers I replaced the felt wicks in both the intake and exhaust rockers but im getting a lot of oil from around the bushings on the rockers dripping on the head it was really splatering around pretty good also I sent you a PM on the HPOCA site Thanks.
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