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#1721394 - 12/27/09 03:03 PM aluminum bore briggs-expected life
morrison250r Offline


Registered: 12/24/09
Posts: 43
Loc: Millinocket, ME
I noticed the snow series max engines have cast iron cylinder sleeves while the regular snow series have aluminum sleeves. Also most of the industrial have C.I. sleeves. What is the expected life of a well maintained aluminum sleeved engine on a snowblower compared to a iron sleeved version? Why did they switch? Last I was aware all b&s engines were C.I sleeved. Why switch? Let me guess....cheeper to produce??

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#1721402 - 12/27/09 03:13 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
Warstud Offline


Registered: 09/02/05
Posts: 2473
Loc: MIchigan
You say you noticed! How did you notice? Is this an aluminum sleeve in a aluminum block?

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#1721420 - 12/27/09 03:42 PM Re: aluminum bore briggs-expected life [Re: Warstud]
Bluestream Offline


Registered: 09/13/03
Posts: 3613
Loc: Waterloo, ON
my experience with aluminium block small engines is that they do not last long.
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#1721423 - 12/27/09 03:44 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
morrison250r Offline


Registered: 12/24/09
Posts: 43
Loc: Millinocket, ME
I noticed by reading.

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#1721427 - 12/27/09 03:49 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
bepperb Offline


Registered: 01/10/08
Posts: 4551
Loc: Milwaukee, WI
Interesting, but keep in mind how few hours the average snowblower gets used a year. Probably less than 20. Like most Briggs engines, I'm sure the vast majority will die of neglect, not from loss of compression due to premature wear of the cylinder.
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#1721437 - 12/27/09 03:59 PM Re: aluminum bore briggs-expected life [Re: bepperb]
Bror Jace Offline


Registered: 05/27/02
Posts: 4852
Loc: Saratoga, NY
I agree bepperb. I used to maintain Dad's OPE when I lived with him. None of the OPE engines I (over) maintained for a dozen or so years showed any sign of wearing out (smoking, oil consumption, loss of power, etc...) while I ran or maintained any of them.

He's on his own now and doesn't maintain them as well as I did, but I'm still waiting for the phone call where he tells me one of the engines blew up or otherwise died. I suspect that call will never come.
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#1721457 - 12/27/09 04:18 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
morrison250r Offline


Registered: 12/24/09
Posts: 43
Loc: Millinocket, ME
I agree that the average snowbloweris not used all that much however the 32" ariens pro series uses the 342cc snowmax aluminum sleeve engine. Being the "professional" equpiment it is labeled as most equipment would be used for say 6 to 8 hours per storm and about 80 or more hours per year. As in a snow removal business. I would expect it to last through at least 10 years of service. Is that unreasonable? If Briggs offers the better "max" engine it seems to me that should be the one offered on the ariens pro snowblowers. Unless the benefits of the aluminum sleeve outweigh the shorter life....

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#1721482 - 12/27/09 04:42 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
JTK Offline


Registered: 08/14/03
Posts: 6960
Loc: Buffalo, NY
Per Brigg's specs, this engine has a cast iron sleeve. I'm not sure there's any OHV engine w/out a CI sleeve these days. Toggle to the "specifications" tab here: http://www.briggsandstratton.com/engine_power/engine_details.aspx?pid=55

Joel
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#1721502 - 12/27/09 05:07 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
morrison250r Offline


Registered: 12/24/09
Posts: 43
Loc: Millinocket, ME
Yes it has a cast iron sleeve however it is the snowmax series.
It lists the engine block as aluminum with a cast iron sleeve.
http://www.briggsandstratton.com/engine_power/engine_details.aspx?pid=55
I have the regular snow series engine on my pro 32 which lists the cylinder block as aluminum. http://www.briggsandstratton.com/engine_power/engine_details.aspx?pid=63
From what I understand it is an aluminum sleeve. Correct?

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#1721507 - 12/27/09 05:14 PM Re: aluminum bore briggs-expected life [Re: JTK]
Warstud Offline


Registered: 09/02/05
Posts: 2473
Loc: MIchigan
It looks as if the Max engine blocks are aluminum with a C.I. sleeve. Whereas the regular snow series are all aluminum without a sleeve...(Not time tested long enough for me).

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#1721509 - 12/27/09 05:15 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
Uregina09 Offline


Registered: 06/07/09
Posts: 32
Loc: Canada
Long time lurker, first time poster.

Briggs & Stratton Snow Series Engines do not have a cast iron cylinder sleeve. You have to get the Snow Series Max series in order to get a cast iron cylinder sleeve. I just purchased a Ariens Deluxe 24 and had the choice of a Briggs Snow Series engine or a Subaru. No brainer - the Subaru has a cast iron sleeve. It's disgraceful how much some stuff has been cheapened....

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#1721515 - 12/27/09 05:27 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
morrison250r Offline


Registered: 12/24/09
Posts: 43
Loc: Millinocket, ME
I bought it about 10 days ago. I assused (bad idea) that because it was a B&S it was top quality expecially since it was the pro model ariens. I never would have imagned it used amuninum. Not that I have any problems with it but.....an aluminum sleeve?!?! How long have these engines been out? i wont be happy if I have to repower in 5 years.....I feel sick.

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#1721520 - 12/27/09 05:34 PM Re: aluminum bore briggs-expected life [Re: Warstud]
SrDriver Offline


Registered: 12/09/06
Posts: 2319
Loc: Southeast Alabama
When the engine needs replacement try one of the cast iron engines from China.

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#1721521 - 12/27/09 05:36 PM Re: aluminum bore briggs-expected life [Re: morrison250r]
Warstud Offline


Registered: 09/02/05
Posts: 2473
Loc: MIchigan
I don't think it has a sleeve..it's just an aluminum bore. The reason they use a aluminum block is because it's lighter... and the reason they use a C.I. sleeve is because aluminum is soft and is not wear resistant.

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#1721538 - 12/27/09 05:59 PM Re: aluminum bore briggs-expected life [Re: Warstud]
Nick R Offline


Registered: 07/14/09
Posts: 10275
Loc: Saratoga, NY
There is absolutely nothing wrong with an aluminum bore engine. Lawnmower engines are aluminum bore and go for thousands of hours, you have nothing to worry about.
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