Mechnical Seals - The Water pump one

[@Surestick88]

The seal around propeller shafts on boats always impresses me.

[@digger8180]

Excellent mechanical seal explanation you should consider teaching at a tech or uni.

[@skandix]

Matt he teacher is back ON THE BOARD!

[@NickTaylorRickPowers]

It's been so long, I know Matt gets off on watching Del But theres a reason I don't The ginger series was fun but

[@stevesanelli90]

Super slippery chalkboard! I for one want the whiteboard to make a comeback, not to be prejudiced.

[@Gixerkid17]

Glad to see you back on the board mate 👍

[@richardjones2151]

SUPERB! thanks!

[@ItsAllJustBollox]

What stops the oil or water leaking down the shaft in your example in most industrial pumps I have fitted seals to uses an oring to seal on the shaft on the rotating seal?

[@Fizzer99]

I just replaced one of these today in a kle 650.

[@fredbailey2076]

well i never realized that obvious but I never knew it

[@wojtech3]

When will you make the next "Easy engine" episode?

[@katywalker8322]

Finding replacements can be difficult if no longer listed. I have one which has failed where it has a normal seal on the shaft as well (to stop coolant leaking down the shaft), and through not being used for a while this part of the seal stuck to the shaft and was damaged.

[@needmoreboost6369]

Didn’t realize bikes used a Teflon and graphite sealing face. all the mechanical seals I deal with use graphite and a ceramic one what looks like aluminum oxide

[@jamesallen4050]

Super, super slippery PTFE can also be found in [on] your fork leg bushings.

[@Paul-FrancisB]

yep in chemical industry more used to carbon/ceramic, aluminium oxide or silicon carbide the elastomer eg rubber/Teflon etc being limited to the o-rings or bellows between the outer of the cartridge and the casing/shaft static seals

[@ItsAllJustBollox]

We have a lot of double seals with a water feed between them when the pumps are used as scavenger or with vacuum some use a carbon ceramic others tungsten these are very common in industrial applications but none with PTFE as in this example.

[@Paul-FrancisB]

@@ItsAllJustBollox the white "PTFE" looks suspiciously like super slippery Aluminium Oxide to me, but I might be talking bllx 🤣

[@RogeyRD250DX]

Matt,why didn't you wear black rubber gloves for them there close ups?😧

[@EvilBard666]

Hey man, can i ask you your opinion of the modern Boneville t120 ? You think its a reliable bike that will last many years ? Thank you for your time.

[@dirtygarageguy]

No

[@EvilBard666]

@@dirtygarageguy Can you go into detail ?

[@guillo88]

Didnt know the water pump seals works like this, cant believe they outlast the life on an engine and aparently incredibly reliable! Thx Matt, the whiteboard is the dick and the balls!

[@michaeldemetriou1399]

I was waiting with baited breath for Matt to do a robotic impersonation of a Seal😒

[@saifcathum3423]

I have a question regarding fork seals. Can you use radial shaft seals like the ones used in engines? I have had no problems with SKF HMSA10 seals leaking. They seem to work better than the original ones and I can get them in any size cheap from my local bearing supplier.

[@inevespace]

I'm not sure, but I think often fork seals designed to have small lip pressure to reduce sticktion and friction. It is not so important for rotating shaft, so regular seal may be overkill in terms of pressure. Also check number of lips. There are seals with 1,2 and 3 lips. Lips are directional. 1 lip seal probably not suitable for fork. Look for lips similar to OEM seals.

[@bananabrooks3836]

Which part(s) allow leaking water from a failed water side seal from contaminating the oil side?(l've probably described that poorly).

[@MehNam-db5yr]

Vane engine..... Any thoughts?

[@seanylewl]

very interesting stuff!

[@martin-vv9lf]

i've heard that the oils on the skin destroy those seals by touching them.

[@Stephane1995]

That would be for metallic mechanical face seals which have lapped surfaces rubbing together

[@TheAnigai]

But what about the weep hole on a water pump to show that the seal has failed? You didn't mention that.

[@inevespace]

It is other type when you have two seals on oil-atmosphere-water interfaces. So leaking water goes to small chamber, connected with outer world by the weep hole.

[@dylancrow7919]

@@inevespacedrz400 eats these things.

[@Critical_Stinking]

I'd buy that for a dollar...

[@NickTaylorRickPowers]

Is graphite being slippery the reason why erasing on paper works Is this like clay barring paint but for paper hahahaha

[@TheAnigai]

Ok time to fund raise for a pair of flat bottomed PTFE shoes and an ice rink with graphite instead of ice. Any super rich guys want to blow a pile of money on a stupid idea? :)

[@bananabrooks3836]

Odear thought of this first.

[@inevespace]

Not sure if they use PTFE, but you can by slippery mats for exercise with slippery socks for some kind of ski training

[@mateuszkasza]

Seals? *ouw ouw^

[@Honkawsuzyamal]

And Sealey Seals ouw ouw ouw ouw ouw ouw

[@gafrers]

Blackboard FTW So well explained and showed

[@zitoun411]

Thanks(🤔🤔🤔) to my street r 2012, i know those can(some unlucky times ) failed before the universe thermal equilibrium…. Thanks(really really)to my skilled mechanic, it only cost me the price of the seal and the working time for him to get there(pretty a fuckin lot), instead of the clever (🤦🏻) solution from triumph marketing people, which is to change the hole pump assembly….. for a fucking first series unreliable seal mounted at factory ! 😅 feel better to have been able to complain once about that silly story ! 🙏🏻🤣

[@Honkawsuzyamal]

You ain't seen nuffin yet. Del's latest project is eye-watering

[@kenkennedy5516]

Have you ever done a idea of how to check the fuel pressure and fuel injector test for us home mechanics? If not could you please do one , if possible on a Harley Davidson xr1200x system…..no laughing at the back ! …..keep on informing and entertaining ! 👍🥃

[@DytliefMoller]

GLAD TO SEE YOUR STILL UPLOADING. LAST WATCHED THE DELBOY SAGA xD. BEEN BUSY A FEW YEARS, BUT BACK AGAIN.

[@lachlanmaclean3852]

I’ll take it back saying Del was “better than you “ He wants to replace a Rocket 3 tyres with only 3,000 miles on them “not worn or cracked “ because they’re 12 years old. I hate people (especially bikers) driven psychotic by health & safety uber culture.