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mikev


Joined: Dec 21, 2007
Points: 9

Low Compression, some smoking and some oil coming from breather tube
Original Message   Feb 6, 2008 8:04 pm
I have an older John Deere 726 with a 7 hp Tecumseh engine. It has really been given a work out in the last month and I think the engine is getting a little tired. When I use it I usually run it for 1 - 2 hours. Lately I can only operate it a the slowest speed and have to release the drive in heavier loads to keep it from stalling. I checked the compression when it was cold and only got a reading of 35psi when I cranked it over by pulling hard a number of times. 

I also noticed that it smokes somewhat when it is heavily loaded and some oil is on the frame from the breather tube.

Any ideas on how I might get the rest of the winter out of the engine?

Would you rebuild an engine like this?

Would you put a new or used engine on an older machine?

Thanks for any feedback.

Mike

   

Replies: 7 - 11 of 11Next page of topicsPreviousAllView as Outline
borat


Joined: Nov 10, 2007
Points: 2692

Re: Low Compression, some smoking and some oil coming from breather tube
Reply #7   Feb 8, 2008 12:01 pm
Not sure where you live Mike but I get my stuff shipped to a handler on the U.S. side of the border.  Usually for free.  Then I take a 25 minute drive to pick it up.   Pay taxes on the Canadian side and that's about it.  Seldom do I ever have to pay duty.  There are plenty of 9 to 11 h.p. engines listed with 3/4" shafts.  I assume that's the size you need.  Peruse the "snow engine" list.  I'd go with at least a 9 h.p. 

If shipping the engine in from the U.S.  isn't worth the cost/effort, take the price to a local small engine dealer and see if they will drop their price to something reasonable.   I checked the price on a 10 h.p. B&S overhead valve, horizontal shaft engine at a local dealer last October.  They wanted $850.00!!!  Yeah.  Sure.  Where do I sign?   The very same engine from Small Engine Warehouse was $350.00 with free shipping.  Can't see how a dealer can charge more than double for the same product.  If they're paying that much to their suppliers, maybe they should start buying them from Small Engine Warehouse themselves???

mikev


Joined: Dec 21, 2007
Points: 9

Re: Low Compression, some smoking and some oil coming from breather tube
Reply #8   Feb 9, 2008 9:12 pm
Driving to state side would definetely be an option. I didn't know you could have it shipped to a handler. Thanks for the suggestion Borat.

Two more question.

Would you invest $350 or so on a 1977 John Deere 726?

Are the low priced snowplower engines available all year or just during the winter?

Mike

borat


Joined: Nov 10, 2007
Points: 2692

Re: Low Compression, some smoking and some oil coming from breather tube
Reply #9   Feb 9, 2008 11:06 pm
mikev wrote:
Driving to state side would definetely be an option. I didn't know you could have it shipped to a handler. Thanks for the suggestion Borat.

Two more question.

Would you invest $350 or so on a 1977 John Deere 726?

Are the low priced snowplower engines available all year or just during the winter?

Mike



If the unit is structurally sound and doesn't appear to need extensive and expensive repairs (gears, bearings etc.), it's certainly worth the price of a new engine.  Take a good look at how rugged the machine is then compare that with many of today's offerings demanding in excess of $1000.00.   If it is in good shape, I'd re-engine. 

I'm pretty sure they keep their engine stock consistent all year round.   

JohnnyBoyUpNorth


Location: New Brunswick Canada
Joined: Dec 30, 2007
Points: 72

Re: Low Compression, some smoking and some oil coming from breather tube
Reply #10   Feb 10, 2008 6:46 pm
I agree with Borat on this one. A new engine is a sound investment. I put a fairly new Honda on a Bolens machine made sometime in the early 70's, and I am very happy with it. You might be able to buy something as reliable today brand new, but you'll spend a lot more doing it than you have to.

Think about what you're going to do with a snowblower, and ask yourself how glamorous does it have to be? I've got a machine with 3 shades of rust, faded Honda colours, mismatched mittens and I am still the envy of every shoveller out there..

John

Contents under pressure....
borat


Joined: Nov 10, 2007
Points: 2692

Re: Low Compression, some smoking and some oil coming from breather tube
Reply #11   Feb 10, 2008 7:53 pm
JohnnyBoyUpNorth wrote:
I agree with Borat on this one. A new engine is a sound investment. I put a fairly new Honda on a Bolens machine made sometime in the early 70's, and I am very happy with it. You might be able to buy something as reliable today brand new, but you'll spend a lot more doing it than you have to.

Think about what you're going to do with a snowblower, and ask yourself how glamorous does it have to be? I've got a machine with 3 shades of rust, faded Honda colours, mismatched mittens and I am still the envy of every shoveller out there..

John


Very well put bud.  Got a laugh out of that one. 
Replies: 7 - 11 of 11Next page of topicsPreviousAllView as Outline
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