briggs 273280s versus 796584

[38racing]

https://www.repairclinic.com/PartDetail ... 0S/1604430
https://www.repairclinic.com/PartDetail ... 84/1611261
For some reason I thought that the 7.. was a improved replacement for the 2.. but actually forgot and ordered a 2... Checking suppliers though the 2... never shows being replaced by the 7... .The engine that I am working on called for the 2.. so it should work (for the usual length of time)
Although now looking at the images the 7.. one , it has a 31 stamped on it so maybe it's for the 31 series . Should work on the 28 I expect. Pretty sure I put one on a 28 once.
Update:oops the 31 series has a slightly larger bore than the 28 so I better make sure I use the right gasket.

[RoyM]

That is critical on the Briggs Intek singles. I once serviced a Tecumseh TNT120 on a Toro mower, started it up and the thing sounded like it was coming apart. I pulled the head and couldn't find anything wrong then looked at the head gasket. I had used a TNT 100 gasket, identical except the bore was smaller. The piston was hitting the fire ring.

[38racing]

the more i think i wonder why i thought the 7.. replaced the 2... was that a local dealer may have sold me a 7.. when i went for a 2... that dealer sold a customer a Briggs starter with plastic gear even though customer told him the original had a steel gear. dealer said it would work fine.

[KE4AVB]

the more i think i wonder why i thought the 7.. replaced the 2... was that a local dealer may have sold me a 7.. when i went for a 2... that dealer sold a customer a Briggs starter with plastic gear even though customer told him the original had a steel gear. dealer said it would work fine.

If you had ran those numbers through eReplacements you would have found that 273280s is for the 210000 series and the 796584 is the 310000 series. The 273280(s) is also used for the 280000 series though eReplacements are not listing that series (Briggs Portal verify this one). Also the head bolt torque was increased from 220 in-lbs to 250 in-lbs on these engines. This was to help keep down the chances of the new head gasket blowing again. Note> 794114 is for the 330000 series so the 796584 won't work there either.

As for that dealer I would not be using them any more especially since don't know that a steel starter gear is a different pitch than the plastic one. The plastic gear will not last very long or be very quite. Apparently they are just wanting to sell parts and don't care they are the right ones. Of course they could have just a parts handler that don't know up from down. I would rather lose the sell than knowingly sale the wrong parts.

[Fulltilt]

https://www.repairclinic.com/PartDetail/Cylinder-Head-Gasket/273280S/1604430
https://www.repairclinic.com/PartDetail ... 84/1611261
For some reason I thought that the 7.. was a improved replacement for the 2.. but actually forgot and ordered a 2... Checking suppliers though the 2... never shows being replaced by the 7... .The engine that I am working on called for the 2.. so it should work (for the usual length of time)
Although now looking at the images the 7.. one , it has a 31 stamped on it so maybe it's for the 31 series . Should work on the 28 I expect. Pretty sure I put one on a 28 once.
Update:oops the 31 series has a slightly larger bore than the 28 so I better make sure I use the right gasket.

So why wouldn't you just look up the correct part number for whatever Briggs you're working on here ? https://shop.briggsandstratton.com/us/en/repair-parts

I don't know about you, but I always make sure the head is dead flat. Usually I sand it down using 180 or so sandpaper on a chunk of polished granite.

[38racing]

https://www.repairclinic.com/PartDetail/Cylinder-Head-Gasket/273280S/1604430
https://www.repairclinic.com/PartDetail ... 84/1611261
For some reason I thought that the 7.. was a improved replacement for the 2.. but actually forgot and ordered a 2... Checking suppliers though the 2... never shows being replaced by the 7... .The engine that I am working on called for the 2.. so it should work (for the usual length of time)
Although now looking at the images the 7.. one , it has a 31 stamped on it so maybe it's for the 31 series . Should work on the 28 I expect. Pretty sure I put one on a 28 once.
Update:oops the 31 series has a slightly larger bore than the 28 so I better make sure I use the right gasket.

So why wouldn't you just look up the correct part number for whatever Briggs you're working on here ? https://shop.briggsandstratton.com/us/en/repair-parts

I don't know about you, but I always make sure the head is dead flat. Usually I sand it down using 180 or so sandpaper on a chunk of polished granite.

actually I did look up the part on the ipl. that's why i ended up with the correct part. however I thought that I should've ordered the other one due to the misinformation that I had received.

[KE4AVB]

due to the misinformation that I had received.

Seems to be a lot that going around lately. One of the reasons I have check a few things directly with Briggs Support over the few years (since 2008) I have work on these engines professionally. Double and triple checking at times doesn't hurt though it is time consuming especially during the busy season.

So glad I am now on cable internet access vs the DSL. 30 Megs is definitely faster than 3Meg DSL but I still remember when I thought 33.6K was fast especially since I started out on the net with 1200 baud modems and a 5 meg hard drive. Remember CP/M-86 with its 196K disk capacity and using PIP to move files around?

[38racing]

ok back to this on slightly different note. Changing head gasket for neighbour. in house so don't remember model number except it's 31. I have ipl on computer here for 31f,31c,31g,31q. Head gasket for f is 794114. other 3 is 796584. If I look them up they come up different, different prices same place.Nothing to show either supercedes the other. Anyone know what briggs was doing here? I have a feeling that I put the 796584 on my daughter's 31f

update: I see in a previous that KE4AVB said the 794114 was for 33 series so briggs must have goofed on the 31f ipl I got.

[KE4AVB]

When I looked up a 31F707-0112-E1 it has a 796584 listed.

To be double sure look at the tab on the gasket the 796584 will stamped 31 and the 794114 will stamped 33. Now the 31 is cu in of the 310000 series and 33 is the cu in of 330000 series.

Also you could post the type number and I can check on the Power Portal to see what they have it listed as to having on it.

[38racing]

When I looked up a 31F707-0112-E1 it has a 796584 listed.

To be double sure look at the tab on the gasket the 796584 will stamped 31 and the 794114 will stamped 33. Now the 31 is cu in of the 310000 series and 33 is the cu in of 330000 series.

Also you could post the type number and I can check on the Power Portal to see what they have it listed as to having on it.

For daughter's I'll have to get numbers. The IPL showing 794114 is form 5035 04/27/2009 31F700 types 0110 to 0403.
Neighbour's is 311777 and IPL says 796584. Cheapest I can find is amazon.ca at $25 cdn and free shipping if I buy $35 of stuff. Don't recall what I paid for the 2 I had here already. Wonder why nobody has made aftermarket ones. they have for 28 series.
The gasket was blown in usual spot but I think this is the first one where the gasket didn't come off in one piece. Top and bottom outside corners of the galley side were split. That might account for all the oil in the bottom shield. aslo found head bolt on the other side that was definitely not as tight as the other ones.