Man, thanks for the video, enjoyed the commentary, can we be neighbors? same garage style, same stuff falling off the bench, very normal things...lolol
No. Most likely not. Valve seals don't have anything to do with sealing the cylinders. If you got low compression in a cylinder or cylinders, those cylinders are not sealing. Something that seals the cylinder is worn. A couple things it could be would be worn out piston rings or valves that are not closing they should.
Can someone explain why you need the air compressor or the rope if the piston is already in the top possition of the compression stroke that would prevent the valve from falling in.
Because there's still a gap between the valve & the piston. The valve will fall down just enough to where you can't get the new seal on. You need the valve to be all the way up. In this example anyways. I can't speak for all engines & all scenarios.
@@freemansgarageextra ok. So the valve stem seals are down further and right above the head. Are you an actual mechanic because this is like pretty early in stuff they teach. Just watch a video on TH-cam on valve stem seals.
I can't tell if you're messing with me or not, but I have completely disassembled & reassembled this engine more than once. There is only one location on the valve stem for an o-ring/seal & it is what you watched me do in the video. This is a 1967 Chevy 250 cubic inch.
Links for tools etc in description. Here's a video of replacing valve seals with the cylinder head off: th-cam.com/video/8UTvlYExIyM/w-d-xo.html
Thank you for this video so very helpful 👍💯
I'm glad you found it helpful.
your rope method is very original... i didn´t heard about it, and very cleaver.... nice video.
Thanks for the kind words! I'm glad you found it helpful. I can't take credit for the method. I learnt it from somewhere along the way.
Man, thanks for the video, enjoyed the commentary, can we be neighbors? same garage style, same stuff falling off the bench, very normal things...lolol
That's funny. It's just life I guess. You're welcome for the video. Thanks for watching it.
What a brilliant idea. Thank you!
Glad it was helpful!
Cool. Thanks for your effort.
You're welcome.
Good explanation…need to do this on our boat diesel engine. Just wondering what size compressor is needed? Would 10 bar do it ?
I'm not sure but you do not need much. Did you do it already?
Very informative 😜
That's good because that's why I made the video.
My case is low compression? So . looks like this can be what I'm going look into?
That's usually gonna be bottom end. Usually pistons,rings, cam or crankshaft is leaking
No. Most likely not. Valve seals don't have anything to do with sealing the cylinders. If you got low compression in a cylinder or cylinders, those cylinders are not sealing. Something that seals the cylinder is worn. A couple things it could be would be worn out piston rings or valves that are not closing they should.
awesome!
Can someone explain why you need the air compressor or the rope if the piston is already in the top possition of the compression stroke that would prevent the valve from falling in.
Because there's still a gap between the valve & the piston. The valve will fall down just enough to where you can't get the new seal on. You need the valve to be all the way up. In this example anyways. I can't speak for all engines & all scenarios.
@@freemansgarageextra thanks for responding, makes sense.
My valve fell down into cylinder & I got a magnet and fished it back up
That's a great idea. I will keep that in mind.
doing that does it change the timing
No. It does not change the timing. Your timing can only change if you loosen & turn the distributor.
Funny good job
Spanks
He's never done this before
Agreed
If you're there why not replace the valve stem seals too .....
I don't understand. I did replace the seals.
@@freemansgarageextra no you only replaced the o rings
@@jagalasso You'll have to explain to me what you're thinking because to me the o rings are the seals.
@@freemansgarageextra ok. So the valve stem seals are down further and right above the head. Are you an actual mechanic because this is like pretty early in stuff they teach. Just watch a video on TH-cam on valve stem seals.
I can't tell if you're messing with me or not, but I have completely disassembled & reassembled this engine more than once. There is only one location on the valve stem for an o-ring/seal & it is what you watched me do in the video. This is a 1967 Chevy 250 cubic inch.
DO NOT EVER PUT ANYTHING IN THE CYLINDER.
Do not ever put anything in the cylinder of your engine #fgextra
WOW....The rope trick has never bent a valve if done to TDC on compression stroke.
@misters2837 this is so stupid.. 20 other ways to check TDC. but If you wanna play games...