STHIL BR 420 MAGNUM piston Replace easy!

[@Disco45]

The tip to half fit piston in cylinder first, was priceless. Saved me hours of 🤯 head exploding frustration. Top man.

[@thebug4046]

Hahaha you're welcome 👌🏻🤘🏻🍻

[@Disco45]

@@thebug4046I had theses symptoms - sound of metal hitting metal or a high pitch note as if the piston was hitting the top of the cylinder. Piston slap it was. Old piston looked fine it wasn't until I compared the fit of old and new, I really understood. BR420 now running silky smooth Great video, and as a 5th scale RC guy you have a new subscriber from across the Atlantic. Happy new year from the UK.

[@thebug4046]

@@Disco45 hey man that's exactly it! I get them in for repair every so often. And I was gunna get a ⅕ but can't find one for a good price that isn't destroyed lol and UK subs? I have a handful not sure how many but I get a few that pop in now and then! And happy new year to you and your family! 🍻💯

[@iamdestructoman]

thx for vid, knowledge is power (after the rings break in that is)

[@thebug4046]

No problem!

[@wikeddf]

Dude. Replace that stupid catalytic converter muffler with a stock muffler. It helped on mine and made a big difference. Also prevented it from getting too hot after I shut it off. Just a quick tip.

[@thebug4046]

This one actually doesn't have a catalytic in it being the older model for the Canadian market. The latter ones did

[@wikeddf]

@@thebug4046 Well, looking at your vid, it turns out yours has a holes on a piece of metal welded on there. That tells me it’s got a catalytic converter on it.

[@TelipatiEvolustions]

Dont forget Pin bearing problem . it's sound tik tik ..

[@thebug4046]

Yup! All new and she's mint! I run 40:1 in everything never a problem

[@jason28w]

great video thanks

[@thebug4046]

No problem!

[@richardzaring6249]

Great job on the piston replacement ,I just finished a complete tear down on a BR600 blower for the first time, would like your thoughts on what cover sealant to use ? and the piston ring placement on that 4 mix engine. This is open to anyone reading this. thanks RZ

[@thebug4046]

Thanks abd I usually use 3 bond 1184 and make sure everything is very clean! And let it set up over night before you start it! Take your time with applying the sealant! Very important!

[@rgannz]

What did you say to fill the cylinder with to clean the carbon, after warming with hit water?

[@thebug4046]

Super clean

[@hpiedsavageed7608]

12:39 sounds like a motorcycle. Hope your doing ok bud!

[@thebug4046]

I'm doing good was gunna go bashing but had to work