How do i replace a head gasket on b&s 31p777?

https://mechanics.stackexchange.com/questions/64393/4-3l-engine-will-not-rotate-after-head-gasket-replacement

https://www.google.com/search?ei=DKR3XsfCM-2KlwTIkJm4Dg&q=Trying+to+set+TDC+on+2006+CHY+300%2C+Replacing+the+head+gasket.+Crankshaft+gets+stuck+when+turning%2C+won%27t+let+me+turn+after+a+certain+spot.&oq=Trying+to+set+TDC+on+2006+CHY+300%2C+Replacing+the+head+gasket.+Crankshaft+gets+stuck+when+turning%2C+won%27t+let+me+turn+after+a+certain+spot.&gs_l=psy-ab.3..0i71l8.33530.35679..36793...0.2..0.0.0.......3....1..gws-wiz.zo96PuDiIjg&ved=0ahUKEwjH-NOX0a7oAhVtxYUKHUhIBucQ4dUDCAo&uact=5#kpvalbx=_M6R3Xt5riI6XBInJm6AB27

Head Gasket & Timing Ford Ranger/Mazda B "How To ...

? 37:43
https://www.youtube.com/watch?v=SMXtfO1iMMI
Jul 24, 2013 - Uploaded by Nthefastlane
Head Gasket & Timing Ford Ranger/Mazda B "How To" ... CamCaps 12 ft lbs ... Replacing Head Gaskets On ...Missing: follower

Hope this helps 4d56

You don't replace just the top ring, you do them all

If the cylinders are not bored, it could be no ring replacement
will help

You need to ask that at an engine machine shop, in person

If your doing your own work & did a head gasket & not heads
& valves, your doing a lot of work & not fixing much when
you had the chance

You ask a question no one can answer

You don't say it has 150,000 miles & is worn out

If that is the case, you also bore the motor & do a complete
rebuild & have the shop do all the work but install the short
bock & then you do the head install & the rest

try SearsPartsDirect or PartsTree.com

was it the correct gasket? if its even off by a little it could def cause no start. if so the you need to check map sensor and also throttle posistion sensor

Go to you tube and on the line type change head gasket on
16hp b&s.

did you take a compression check on these cylinders compare to 1 & 4, possible causes for such a symptom are as listed:damaged head gasket between 2 & 3, a cracked cylinder head between 2 & 3, faulty injectors, bad plug wires or coils(direct ignition), a warp cylinder head, intake or exhaust valve are losing compression,damage or sleeping piston rings.

I would recommend the MITCHELL'S Online Manuals. Go to www.mitchell.1.com and you can get a single subscription for about $10. When I had my own repiar shop I had te complete set of Mitchell's. Very complete and just a good as the factory repair manuals (maybe better). I especially liked the wiring diagrams. Very complete.
Good Luck. . . . . BTW, you SHOULD replace the head bolts regardless of which type of gasket you use. Once they are torqued, they shouldn't be used again.