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Massey Harris & Massey Ferguson Tractors Discussion Forum
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Perkins Breather Blow-by HOW MUCH IS TOO MUCH

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Harry Werner

11-15-2006 17:39:59




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I have used MF30 Loader/Backhoe. I am using it to clear 4 acres right now, with plans for some trenching and septic tank/drain field work. It has a Perkins Diesel, which may be getting lot tired, or I am just getting worried, about something that does not need to be addressed right now. It is running and doing a great job for me.
Understanding that old engines need plenty of warm-up, (30 to 40 minutes) it smokes out the breather as the engines warms and also a little blue smoke out the exhaust, which goes away after a little while and the breather reduces smoking upon warm up. However, breather contiues to smoke and I see oil on the ground when at idle or stationary. It using 2 to 3 quarts of oil a day. Question is how much oil blow by is too much? I'm told that the blow-by is from valve seals being warn. I need the machine but also want the machine to last me. She is doing a good job and I want it to continue.

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brianriver

11-16-2006 19:26:52




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to Harry Werner, 11-15-2006 17:39:59  
Worn connecting rod bearings will throw oil up onto the cylinder walls and cause escessive oil consumption too. Do not overlook the the lower end when asking about 2-3 quarts per day.



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MF#1

11-16-2006 17:37:05




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to Harry Werner, 11-15-2006 17:39:59  
I"ve got another "red" tractor that had a -lot- of blow-by. Pulled the head and found out I had a cracked piston, around the skirt and pin, also two leaky valves. Lucky for me I found it before it tore the cylinder up. Hope it works out for you and I think it will if ya keep checking the oil level, maybe go up a grade in viscosity.



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wayne from wi

11-16-2006 11:56:09




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to Harry Werner, 11-15-2006 17:39:59  

Sounds like you have a very worn engine. You might consider adding recommened amount of Lucas oil treatment to buy yourself some cushion if the oil gets low and you don't catch it in time. The Lucas will cut oil consumption, and also give you some time if you miss low oil level. BTDT. I kept a badly worn engine alive in a tractor that I bought, needed right now, and the guy I bought it from said was good and didn't use hardly any oil.

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Harry Werner

11-16-2006 15:46:01




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to wayne from wi, 11-16-2006 11:56:09  
Thanks Wayne, I very well may have the same situation as you described. I'll try anything to keep the machine alive so as to complete my project. Thanks



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Harry Werner

11-20-2006 06:21:41




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to Harry Werner, 11-16-2006 15:46:01  
Wayne, I tried the LUCAS oil treatment, as bottle recommended, this weekend. Worked great...oil pressure up to 55 to 60 lbs, knock almost gone, no blue smoke out the exhaust. Think I can limp it along for the winter. Thanks



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Jerry/MT

11-15-2006 20:23:05




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to Harry Werner, 11-15-2006 17:39:59  
In my opinion you have too much blowby. You have oil on the ground underneath the breather and your using 2-3 quarts a day.
Having said that, what's your oil pressure look like? If it's OK than between that fact and the fact that it has near fresh oil(adding 2-3 quarts a day) in it probably says that you're not beating the crap out of the bottom end. The head, valves and piston crowns are another story. To make power with all that blow by means your running higher gas temperatures which is hard on the valves and piston crown. It's really important to keep the oil above the "add oil" mark because the oil is used to cool the piston crown. You didn't state what your coolant temperatures are running at but if they're in the normal range and if you keep the oil topped, you can probably nurse it through this job. Better plan on checking out the head/valve train and new rings/sleeves/piston ASAP.

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Harry Werner

11-16-2006 06:59:38




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to Jerry/MT, 11-15-2006 20:23:05  
Thanks for the input...the coolent temperature is steady at 165 to 180 and oil pressure, at start up, is 50 to 60lbs, at idle, is 25lbs (after warm up at700rpm) and at 1500rpm is 35 to 45lbs. The oil temperature, (I checked with a laser heat sensor gun on the oil pan), is at 165 to 170deg when working hard. I check and maintain oil level every day of use and will now check more often. Thanks for all the great advise you guys are great and I hope I can help out some one in the future. Looks like I will have some engine work real soon. Thanks again

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Aaron Ford

11-15-2006 18:53:49




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to Harry Werner, 11-15-2006 17:39:59  
Unless there is engine noise, overheating, drastic loss of power, or it totally quits running, it should be fine. The oil usage is excessive and it will need repaired, but it sounds like you are keeping an eye on the oil level. I would limp it along until you can no longer live with it then take it down for repairs. The overhaul kit for the Perkins is quite reasonable. The labor will be the big ticket.

My parents MF135 was solely responsible for the death of millions of mosquitos in the tri-state area from 1980 to 1991. They finally fixed it.

The danger here is that it will run out of oil and seize. That would definitely complicate matters. If the oil level is maintained, there should be no problem. HTH Aaron

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Harry Werner

11-16-2006 07:07:13




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 Re: Perkins Breather Blow-by HOW MUCH IS TOO MUCH in reply to Aaron Ford, 11-15-2006 18:53:49  
Thanks Arron, great advise and I will check the oil often, attempt to finish the job and then finally fix it. The machine has been good to this point with exception of the blow-by. Thanks



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