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Author Topic: 35 HP Briggs & Stratton Vanguard  (Read 7552 times)

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Offline woodbowl

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35 HP Briggs & Stratton Vanguard
« on: June 17, 2006, 01:56:29 pm »
I sure would like to get some first hand info from an owner of a 35 HP Briggs & Stratton Vanguard air cooled motor. From what I hear, they can really deliver the power to a lawn mower.

I'm interested in the application for a sawmill of course, but it seems a bit early for the reports to come rolling in. It weighs 143 lbs and priced around $2300 - $2400.


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http://www.nextag.com/Garden-Power-Tools--zz2700359z6zBkz5---html


http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200322176_200322176


http://www.scag.com/turftiger35bv_ac.html
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Offline woodbeard

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #1 on: June 17, 2006, 07:15:39 pm »
I've been curious about these, myself. I guess they haven't been out long enough to generate a lot of reviews. The thing I don't get is they are about the same displacement as my 24hp Onan. Not only that, but briggs offers 3 models in that line that are the same displacement with different HP ratings. I don't know too much about small engines, but this seems odd. ???

Online Brian_Rhoad

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #2 on: June 17, 2006, 11:42:55 pm »
I don't know about that particular engine, but the Vanguard is the top of the line from Briggs. I have been thinking about trying that engine on my mill. As far as the different HP ratings, the difference could be in the carb size. The Briggs 8 and 10 HP are both 306cc. The difference is the throat size of the carb and intake.

Offline sawguy21

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #3 on: June 18, 2006, 10:40:08 am »
The camshaft design also plays a big role in horsepower and torque and at what rpm they are produced.
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Offline woodbowl

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #4 on: June 18, 2006, 10:57:15 am »
One thing I've noticed is that the crank shaft for the 35 Vanguard is 1- 1/8" dia.

The crank for my 25 hp Kohler is 1- 7/16" dia.

I don't get it. ........  Seems like it should be the other way around.
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Offline Tom

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #5 on: June 18, 2006, 11:00:27 am »
OMC has been doing it for years.  If you use outboards at all, you will know that Johnson and Evinrude 9.5/10 horse and 15 horse were the same engine, but for carburetion.  It's easier to manufacture one engine for two markets, by de-tuning one, than shelf parts for two or three different engines.  

In outboards, the 10 was standard until bureaucracies decided that you had to have less than 10 horses to run in certain waters.  So they renamed the 10 the 9.5.   Then they found that there was a market for a stronger engine than the 9.5 and the 15 was born.  Well, it was already there, they just turned loose the horsepower.

What made the little engines stick was that belief, by the users, that the de-tuned 9.5 would outlast a high-tuned 15 and they wanted longevity in a fishing engine.  They may have been right.

It could be that you are seeing some of the same manufacturing/marketing concepts in these small equipment engines.
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Offline sawguy21

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #6 on: June 18, 2006, 11:27:53 am »
OTT, but 10 hp also required the boat be registered so through some clever rebadging :D the 9.5/9.9 were born.
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Offline Radar67

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #7 on: June 18, 2006, 01:25:20 pm »
I don't get it. ........  Seems like it should be the other way around.

Seems like the smaller crank diameter would produce a longer stroke.

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #8 on: June 18, 2006, 02:42:39 pm »
John Deere has engines that pretty much are the same with different heads, injector pumps and with or without turbos cover a wide range of hp with basically the same engine.  Cummins does it too.  The 5.9 in Dodge trucks is tuned to 500 hp for marine applications 8)
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Offline MartyParsons

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #9 on: June 18, 2006, 07:15:43 pm »
The Kohler engines are spec. with heavier crank bearing to withstand side load on the Wood-Mizer mills. I have heard of customers replacing engines and some only last a couple 100 hours and the crank bushing fails. I am not sure about the Vanguard might be a good bet to check it out.
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Offline twoodward15

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #10 on: June 18, 2006, 08:12:14 pm »
Woodbowl, I'll check with a guy I work with.  He works at a business that uses these motors I think.  He said they are not allowed to keep anything (extra parts) on the shelf for more than three years.  Seems as though they haven't had a failure on one of these in that time and they are going to "dispose" of them.  If this is the same motor it may disposed of in my vehicle.  Seems that they have a few of these "available" but they are going to pitch them because they are taking up too much space.  I'll check with him tomorrow and see what the deal is with them. 
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Offline doublecut

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #11 on: June 18, 2006, 11:54:34 pm »
woodbowl.
i have used the 31 and the 35 and seem to work pretty good. A little heavy for our application.
We have just tried out the new 30 h.p kohler.  Kohler has a 36 h.p coming out as well. I recieve the first one next week to test.
So far we are leaning towards kohler
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Offline GF

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #12 on: June 19, 2006, 08:46:13 am »
I have a 31HP Briggs Vanguard V-Twin running on my mill.  Bought it new last year.  If I remember correctly it comes with a two commercial use warranty.  I really like the motor, its total weight is around 110 lbs.  It provides plenty of power to the blade and a hydraulic pump.  The motor I had on my mill prior to that was a Wisconsin VH4D 30HP (heavy) and worn out.

All in all I have been very pleased with the motor starts up when its cold outside or hot outside.

Offline Jim_Wahl

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #13 on: June 20, 2006, 03:49:44 pm »
I think the 35hp B&S engine is available with either a 1 1/8 or 1 7/16 inch crank shafts, your choice.
You beter choose 1 1/8 if you buy it from Northern, though.
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Offline woodbowl

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #14 on: June 20, 2006, 06:04:52 pm »
The Kohler engines are spec. with heavier crank bearing to withstand side load on the Wood-Mizer mills. I have heard of customers replacing engines and some only last a couple 100 hours and the crank bushing fails.


You beter choose 1 1/8 if you buy it from Northern, though.

Why would 1 1/8 be better?
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Offline sawguy21

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #15 on: June 20, 2006, 06:17:09 pm »
The bearing size is the same with either crank, the sprocket, pulley, coupling, clutch etc being used determines which one is needed. The 1-1/8 is more common.
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Offline woodbowl

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #16 on: June 21, 2006, 10:17:26 am »
OK .............  So chances are, we get a crank that is HD enough for the job and has large enough crank bearings that will take the side load. The only difference being the diameter on the PTO end, as 1 1/8"  is a more common size to accept pullys. clutches ect.  ...........  Right?

It just seems odd to me that a motor with more HP would have a smaller PTO diameter.

The Kohler engines are spec. with heavier crank bearing to withstand side load on the Wood-Mizer mills. I have heard of customers replacing engines and some only last a couple 100 hours and the crank bushing fails.

I sure would like to know the particulars of it all.

I do know that WM does some things different on the 25 Kohler. One of them is a bigger carb jet to keep it from running too lean and a bit cooler. Their Onan was different too, but not sure how. I got an Onan from Northern about 8-10 years ago and ran the stew out of it. It only lasted 2000 hrs. I had valves replaced several times and cracks on the head pinged back together. Unless a person has a lot of knowledge about these little engines, it is probably cheaper in the long run to fork out the extra money and get the recomended engine from the MFG, especially if dealing with a reputible company like WM ect.
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Offline jpgreen

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #17 on: June 21, 2006, 10:36:33 am »
Look at the shaft where it sits in the engine block.

My Kawasaki has a 1 1/4" shaft, BUT at the block it steps up to 1 7/16" just like the Onan, and the Kohler.  It's just been turned down to 1 1/4" to accomodate smaller sheaves.

THis works out well because the old Onan had a 1 1/4" shaft that stepped up to 1 7/16" at the rear of the sheave so I turned a reducer bushing to set in the back of the sheave.

I think that if the old Onan, and Kohler sized 1 7/16" shaft is strong enough for the WoodMizer, then the Kawasaki will be as well.

I'd check the shaft size at the block, and think you will/may find it's big..   8)
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Offline jpgreen

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #18 on: June 21, 2006, 11:12:40 am »
Just cause I never actually measured it, I went and checked the shaft on the Kawa and it steps up to 1 5/8" before it goes into the block.

That should do her, unless they use a wimpy shaft bearing.
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Offline tcsmpsi

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Re: 35 HP Briggs & Stratton Vanguard
« Reply #19 on: June 21, 2006, 11:29:00 am »
jp, is that measurement with the cobwebs and all on it?   ;D

I was just looking at the big tub set up yesterday evening.  That good looking two banger would sure run me a lot of laundry.

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