Funny how that one failed. I guess the spring that keeps it engaged until the centrifugal force releases the compression release failed, since it still looked to be in one piece. I have seen videos where everything looked fine, with the release just jammed. I wonder if welding the Chinese cams to the shaft would work to keep them on the shaft? Too much welding might crack the cams as the weld cools and shrinks. Experimenting with one might be fun. Weld one, lock the shaft in a vise, and see if a big pliers or wrench could break it loose from the shaft.
I always took and put a little tig weld on the pin when I worked at the lawn shop, never had one come back. did so many under warranty its crazy they are still having problems with those cams. also pretty crazy that when that puppy lets go the most damage i've seen done was a wiped out governor gear.... pretty tough motors just shit acr design ! cool video man
Yup and if that governor gear gets wiped out, the thing runs away at full send; and the rod says well, I'm done here and I'm leaving this shitshow out the nearest exit, ie. the side of the block.🤣🤣😂
Unfortunately the video glossed over a crucial part of the reassembly which is orienting the pin correctly on reinstallation. The video just says to set it correctly without showing what "correct" is or stressing that doing so is crucial to making the compression release work properly. Good catch on mentioning that the valve stem buttons are prone to falling off, however. Between the compression release, the valve seats falling out, the valve guides creeping out and the head gaskets blowing these engines seem guaranteed to fail in some way in about 10 years.
i've pulled seemingly bad ones and everything is intact,,,,lazy compression release spring? the cam lobes were fine. Changed it and it ran fine again...but I never really understood what was wrong with the other one...
I saw a video where a fellow pulled a Predator engine apart due to a failed compression release which was preventing the engine from starting. It was stuck in the run position. The Predator has a better designed compression release than these Briggs. As soon as the man touched it, it sprung closed, like it was supposed to do when the engine is off. He manually opened it, but every time he did it, the thing would close perfectly, like it should. He was tempted to just reassemble the engine, but decided not the risk it getting stuck open in the run position again, so he changed the compression release. Strange things can happen.
@@billsimpson604 There was some tiny little bit of trash stuck between the weight and the cam gear on that one. Saw another engine teardown, and it was from a tiny bit of plastic from the broken orange plastic dipstick, I think that one was a Generac engine, they have that orange plastic dipstick. Funny how a dipstick can kill an engine...
I loved this video thankyou for explaining it clearly. now i can do the same to my own engine that has a broken compression release. p.s you sound like barney from Half life 2
Keep in mind that the case gasket from briggs is 15 thousands and the gaskets from most aftermarket kits are much thicker and will give you too much crank end play. Other than that I think using the old cam was the way to go..JS
First check the rocker studs and then adjust the valve lash, then check to see if the release is working correctly 😢😢😢 Or you’ll be wasting the customer money
The release was intact, but he didn't think to check valve lash first?
Funny how that one failed. I guess the spring that keeps it engaged until the centrifugal force releases the compression release failed, since it still looked to be in one piece. I have seen videos where everything looked fine, with the release just jammed.
I wonder if welding the Chinese cams to the shaft would work to keep them on the shaft? Too much welding might crack the cams as the weld cools and shrinks. Experimenting with one might be fun. Weld one, lock the shaft in a vise, and see if a big pliers or wrench could break it loose from the shaft.
I tried that and it worked great. 2 years still running great no issues.
I always took and put a little tig weld on the pin when I worked at the lawn shop, never had one come back. did so many under warranty its crazy they are still having problems with those cams. also pretty crazy that when that puppy lets go the most damage i've seen done was a wiped out governor gear.... pretty tough motors just shit acr design ! cool video man
Yup and if that governor gear gets wiped out, the thing runs away at full send; and the rod says well, I'm done here and I'm leaving this shitshow out the nearest exit, ie. the side of the block.🤣🤣😂
The OEM cams are also made in China just to a little higher standard. Good video boss
Unfortunately the video glossed over a crucial part of the reassembly which is orienting the pin correctly on reinstallation. The video just says to set it correctly without showing what "correct" is or stressing that doing so is crucial to making the compression release work properly. Good catch on mentioning that the valve stem buttons are prone to falling off, however. Between the compression release, the valve seats falling out, the valve guides creeping out and the head gaskets blowing these engines seem guaranteed to fail in some way in about 10 years.
I mentioned line up the flat side before tapping in
The Breaks and Scrapum cams with compression release aren't available.
WOW GOOD VIDEO THX Ed Loretto Ontario Canada
i've pulled seemingly bad ones and everything is intact,,,,lazy compression release spring? the cam lobes were fine. Changed it and it ran fine again...but I never really understood what was wrong with the other one...
I saw a video where a fellow pulled a Predator engine apart due to a failed compression release which was preventing the engine from starting. It was stuck in the run position. The Predator has a better designed compression release than these Briggs. As soon as the man touched it, it sprung closed, like it was supposed to do when the engine is off. He manually opened it, but every time he did it, the thing would close perfectly, like it should. He was tempted to just reassemble the engine, but decided not the risk it getting stuck open in the run position again, so he changed the compression release. Strange things can happen.
@@billsimpson604 There was some tiny little bit of trash stuck between the weight and the cam gear on that one. Saw another engine teardown, and it was from a tiny bit of plastic from the broken orange plastic dipstick, I think that one was a Generac engine, they have that orange plastic dipstick. Funny how a dipstick can kill an engine...
So basically this one only needed the valves adjusted. there was nothing wrong with the OEM decompressor.
Correct caught my mistake after the video so figured someone with a busted one can benefit.
I loved this video thankyou for explaining it clearly. now i can do the same to my own engine that has a broken compression release. p.s you sound like barney from Half life 2
Thank you!
@@mrsrx4584 how long has it lasted so far with the repaired cam
What brand and model# is that mower the tag is gone of mine but it looks identical to mine
@@WestonDeYoung I dont have the info anymore or the machine sorry
He uses earl in his motors. I use oil in mine.
Keep in mind that the case gasket from briggs is 15 thousands and the gaskets from most aftermarket kits are much thicker and will give you too much crank end play. Other than that I think using the old cam was the way to go..JS
That might also mess up the camshaft end play, and how much clearance there is on that oil pump drive shaft. Sounds like a bad idea to me.
Very good job brother 👏
I dont know why briggs doesnt make a repair kit with just the compression release
I was hoping Twain would make a kit 😊😊 they are smarter than China people
I wonder if he knows that the part we came to see is not shown?🤠
Or just get a 400cca battery and call it a day. Pushes right past the release pressure
First check the rocker studs and then adjust the valve lash, then check to see if the release is working correctly 😢😢😢
Or you’ll be wasting the customer money
Oh noooo
Pretty sure ? It will work WOW