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intek 12.5 hp engine cylinder head gasket need to confirm part #



here’s the engine I have image I believe I need a new cylinder head gasket but don’t know the part #

do these #s ingraved on valve cover tell what type of engine this is?


maybe this image

like do I have to measure
heres old gasket


I have a intek engine on a snapper mower.

maybe this
thanks for advise

steves snapper said:

intek 12.5 hp engine cylinder head gasket need to confirm part #



here’s the engine I have image I believe I need a new cylinder head gasket but don’t know the part #
View attachment 71168
do these #s ingraved on valve cover tell what type of engine this is?
View attachment 71171

maybe this imageView attachment 71169

like do I have to measure
heres old gasketView attachment 71173


I have a intek engine on a snapper mower.
View attachment 71170
maybe this

https://www.amazon.com/Dgdhf-Replacement-272475S-Cylinder-Stratton/dp/B0BX69TCL4/ref=sr_1_19_sspa?crid=1WNGLU79A34RW&dib=eyJ2IjoiMSJ9.mQzANVRgg9o8a4JV_c_0NsOC8RlffmEP3ubAhEsHqDZJ8cXK-0X2viwJ4nQzNETg-676GNHBZyBng7LIqRqUt4SoEX8te75BkBQAXUaClvRyGW-ao7O6LTff-8IAkwmNpkzzpY8XO-h7wXr6KErhmw0gkVPtyfRX05X_Q9_07br5XaQdC0VjdniP7AW1vm_KjiJDOrSF3EQGTBCglDVVIntt55Es_pMCUpVcXS_q9q0.jyVQpPsRNOFuCTbYjMgvwMLukY1ttWGfqQr4B_jHIp4&dib_tag=se&keywords=219907+cylinder+head+gasket&qid=1750460460&sprefix=219907+cylinder+head+gasket+%2Caps%2C214&sr=8-19-spons&xpid=95-ZnyvF3bCW-&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&psc=1

thanks for advise

Click to expand...

Go to Google, then Part Tree or Pro Parts Direct and look up Briggs and Stratton using the numbers stamped into the valve cover.

273280S is the head gasket

Auto Doc's said:

Go to Google, then Part Tree or Pro Parts Direct and look up Briggs and Stratton using the numbers stamped into the valve cover.

Click to expand...

thanks for tip

ILENGINE said:

273280S is the head gasket

PartsTree - Home of OEM Parts for Outdoor Power Equipment

Parts lookup and repair parts diagrams for outdoor equipment like Toro mowers, Cub Cadet tractors, Husqvarna chainsaws, Echo trimmers, Briggs engines, etc.

www.partstree.com

Click to expand...

I hate to give more for the exhaust gasket than the combined head an rocker arm gaskets.
I searched a little but didn't find the kit w/ all plus the intake thanks ILengine for explaining how to search

I'd like to have the set head/rocker/exhaust an intake but couldn't find it packaged together.

Briggs & Stratton 796189 gasSKET SET, Valve​

steves snapper said:

https://www.amazon.com/gp/product/B0DLVGBKGC/ref=ewc_pr_img_1?smid=A3QEAIM7YYCNN4&psc=1

https://www.amazon.com/gp/product/B0BX69TCL4/ref=ewc_pr_img_2?smid=AY2FNW9KBYPRD&psc=1

I hate to give more for the exhaust gasket than the combined head an rocker arm gaskets.
I searched a little but didn't find the kit w/ all plus the intake thanks ILengine for explaining how to search

Click to expand...

I didn't include a part number for the OHV valve gasket set because in most cases the only thing you will use will be the head gasket, and the exhaust gasket.. The gasket set doesn't include the O ring for the plastic intake manifold, just the paper gasket for the metal intake. Also most of the valve covers are using RTV and not the paper valve cover gasket. According to your date code your engine uses RTV and not the cover gasket

The head gasket list for 9.23
the OHV gasket which can be used but not standard on your engine 5.29
Intake gasket that don't fit your intake 2.66
intake valve stem seal 8.25
Secondary intake gasket that is not used with your engine 4.26
exhaust gasket 4.22
total individual parts $33.91

valve cover gasket set with all the parts included above $51.88

I thought the cylinder heads gasket was damaged it’s not but it sounds like compression is being released during ignition an she won’t start.



I suspected the valve lash was loose so I attempted to adjust both intake an exhaust was set to .005 now I have this condition.

Could a valve stem seal cause this compression being released?



What I did was attempt to adjust the valve lash on the engines orginal cylinder head some how this head got buggered up where the rocker arm stud is attached to cylinder head broke loose from head.

Luckiely I have the orginal engines head which I swapped onto this replacement engine.

After adjusting valve lash she won’t start.

Thanks for advise.




Thanks for advise.

I’ve wasted hours attempting to adjust the valve on TDC.

Next plan is to attempt this method. Pres down one valve spring then adjust closed valve.

What should I set the top .004?

What should I set the bottom .006?




thanks for advise

Teryl Fixes All has some good videos, you just have to overlook his cooky skits and the way he appears. He is a small engine master.

What should I set the top .004?

What should I set the bottom .006?

Bottom valve is intake top is exhaust. Clearance is .003 to .005 on intake and .005 to .007 exhaust.

hlw49 said:

Bottom valve is intake top is exhaust. Clearance is .003 to .005 on intake and .005 to .007 exhaust.

Click to expand...

so w/ top valve spring compressed I can adjust bottom an it doesn't matter what stroke piston is on ? thanks HLW49

steves snapper said:

so w/ top valve spring compressed I can adjust bottom an it doesn't matter what stroke piston is on ? thanks HLW49

Click to expand...

Watch the Taryl video that was posted on page 1. All your answers are there.

Watch the video. Engine has to be on top dead center on the compression stroke to adjust the valves.

hlw49 I'm done w/ TDC wasted about 4 hours.​

I managed to adjust the valves lower valve set to .004 top valve .006
she did crank up. I then mowed the back yard 1/2 acre. turned her off to gain access to front yard she didn't want to crank up but I continued to turn her over then she did start.

I didn't like to force her to crank up.

maybe the valves expanded when hot could setting both valves at .005 resolve the expanding metal where she will crank up normally hot or cold?
additionaly do you Guys ever run seafoam though the fuel?
thanks

yes sea foam is some good stuff

hlw49 said:

Watch the video. Engine has to be on top dead center on the compression stroke to adjust the valves.

Click to expand...

Actually to use that method the piston must down 1/4" pass the TDC compression stroke. This way the ACR bump is not in the way. It is just easier to use the older method of adjusting each valve independently by having one fully open and adjusting the opposite valve.

StarTech said:

Actually to use that method the piston must down 1/4" pass the TDC compression stroke. This way the ACR bump is not in the way. It is just easier to use the older method of adjusting each valve independently by having one fully open and adjusting the opposite valve.

Click to expand...

Yes you are right about the 1/4 past TDC never tried the one valve fully open and adjust the other one. I will have to try it on the next one I do.

Per your date code, use RTV on the valve cover rather than a gasket.

steves snapper said:

intek 12.5 hp engine cylinder head gasket need to confirm part #



here’s the engine I have image I believe I need a new cylinder head gasket but don’t know the part #
View attachment 71168
do these #s ingraved on valve cover tell what type of engine this is?
View attachment 71171

maybe this imageView attachment 71169

like do I have to measure
heres old gasketView attachment 71173


I have a intek engine on a snapper mower.
View attachment 71170
maybe this

https://www.amazon.com/Dgdhf-Replacement-272475S-Cylinder-Stratton/dp/B0BX69TCL4/ref=sr_1_19_sspa?crid=1WNGLU79A34RW&dib=eyJ2IjoiMSJ9.mQzANVRgg9o8a4JV_c_0NsOC8RlffmEP3ubAhEsHqDZJ8cXK-0X2viwJ4nQzNETg-676GNHBZyBng7LIqRqUt4SoEX8te75BkBQAXUaClvRyGW-ao7O6LTff-8IAkwmNpkzzpY8XO-h7wXr6KErhmw0gkVPtyfRX05X_Q9_07br5XaQdC0VjdniP7AW1vm_KjiJDOrSF3EQGTBCglDVVIntt55Es_pMCUpVcXS_q9q0.jyVQpPsRNOFuCTbYjMgvwMLukY1ttWGfqQr4B_jHIp4&dib_tag=se&keywords=219907+cylinder+head+gasket&qid=1750460460&sprefix=219907+cylinder+head+gasket+%2Caps%2C214&sr=8-19-spons&xpid=95-ZnyvF3bCW-&sp_csd=d2lkZ2V0TmFtZT1zcF9tdGY&psc=1

thanks for advise

Click to expand...

The B&S engine you have uses an OEM head gasket P/N-273280S or after market equal to it Rotary P/N-11071 or Stens P/N-465-043. We have them in stock.

.004 is correct. Both valves. At top dead center on compression stroke. Beware that intake valve is the lower valve. Sounds like valves not adjusted correctly, battery low or compression release broken.

Freddie21 said:

Per your date code, use RTV on the valve cover rather than a gasket.

Click to expand...

I have the red RTV gasket maker now shes not starting.thanks