Crank.....oh no.

[freddie19]

Guys just posting this for a friend of mine.
Only just bought this 350 Banshee and the engine's gone pop.

Just have a look at the amount of play in the end of the crank!😩

What's your thoughts, broken crank, destroyed main bearings, never seen that much play in a crank before!😵‍💫

Have a look at the video guys!👍






Unfortunately I can't get the whatsApp video to download here, is does on Tapatalk but there's about 2 to 3mm play in the end of the crank, side to side and up and down on the rotor side! 😩

[freddie19]

As I said you can download the video on Tapatalk, if anyone knows how to get it on here I'd appreciate it.👍

My mate just paid around £8K for this Banshee and supposedly the engine had a full £1K rebuild last December.
Looks like another cowboy builder!🤬

As you can imagine, he's not very happy!😩

[freddie19]

Urrrgh..... still can't get it to work, gggrrr!😵‍💫😩

[midlifecrisisrd]

It doesn't even play for me on tapatalk ☹️

Either way it's fecked

To have radial and axial play the bearing must have collapsed and the crank opened up

Sounds like one of those crap welded cranks

Steve

[freddie19]

He just sent me another video Steve, crank 1 has snapped off the rest of the crankshaft......unreal.😵‍💫😩

[midlifecrisisrd]

That's what I suspected

You see these cheap "race" cranks that are welded from new

It's really because the fit is like throwing a sausage up a close

Steve

Sorry for the Glaswegian sayings 🤣

[freddie19]

Gotta agree.

Oh.......and he's been running it on a pre-mix ratio of 120:1.😵‍💫

[midlifecrisisrd]

Oh FFS 😳😳😳

That won't help

Steve

[freddie19]

I know, couldn't believe it when he told me, I said it should surely be around 32:1.

Basically it's been getting only 25% of the oil it should be!😩

[arrow]

120:1 What was he thinking?!

[freddie19]

I know but it was his first 2 stroke and he said that's what all his mates ran on theirs!

Obviously he's got that seriously wrong, strewth!😩

[midlifecrisisrd]

20:1 maybe but that's dosing heavy


120:1 is roughly like sticking 150ml into a full RD petrol tank

Steve

[freddie19]

If my dodgy maths is right 20:1 is 5.0% oil to petrol.

120:1 is only 0.8% oil to petrol.

Way, way to weak!😵‍💫

[JonW]

'mates'... er, 'Facebook Mates' is what im thinking... The power of the internet to fk up stuff, condensed into well meaning but ultimately poor advice.

The way Ive seen it work:

- One person says they do something silly, lets call it X.
- The very next week X is repeated as a fact and gets offered as advice by those who have never done it, just 'read it last week somewhere'.
- Over time X becomes embellished as XX and so on.
- When you get to XXX you find out you're watching someone get f**ked... just pray its not you who is the star of the show.

Easily avoided by joining a reputable forum and reading around the subject, plus not taking advice from others without checking out not only the advice itself, but also the giver of the advice.

(and yes, I do know what i said here and the use of XXX lol - being funny takes years of practice, or simply knowing your audience... {takes a bow} lol)

[4l04ever]

Is that where XXXX came from? :-)

[chrisg]

Jun 25, 2023 9:33:23 GMT 1 4l04ever said:

Is that where XXXX came from? :-)

What about XXXXL? 😁

[JonW]

Jun 25, 2023 9:33:23 GMT 1 4l04ever said:

Is that where XXXX came from? :-)

yes, thats why it tastes awful...

(funnily enough, its not something you can get in Sydney and nor would you want to. Adverts abroad tell a different story to real life... who knew!? lol)

[muttsnuts]

too many keyboard mechanics these days.

I saw a video the other day, someone doing a 350LC for one of their customers, said the carbs where the problem, said the bike was an early model (non tie bar) and that the carb internals where all wrong, so they changed them. In their next breath they said they had no idea what these 4H16 needles where off, but clearly not for the 350LC............. at which point I rolled my eyes and stopped watching the total crap and bollox it is - seen so many of these so called experts online with loads of people blowing smoke up their arse that they start to beleive they are gods/guru's and can never be wrong..............

I just keep taking the phone calls to fix the mess they create, I should thank them really, although I've no idea why people don't post up that these people made a right "feck" up of their bike so it helps others avoid having the same issue

I have a bike here right now, its blown up twice, had a full engine overhaul supposedly, but its blown up twice, once after 5 miles, 2nd time after 20 miles, took me 20 mins to find the cause (perished/torn reed block rubber), but upon checking the crank I could move it up and down by more than 1mm and in and out by a similiar amount, and yet its had a full engine overhaul by a supposed expert...........

I'll get off my soap box now .................

[chrisg]

Jun 26, 2023 18:10:16 GMT 1 muttsnuts said:

too many keyboard mechanics these days.

 I should thank them really, although I've no idea why people don't post up that these people made a right "feck" up of theand yet its had a full engine overhaul by a supposed expert...........

Definition of an expert: An EX is a has-been and a SPERT is a drip under pressure. 

[Tobyjugs]

I think it happens here every now and then.
When it does I think we are all too polite to speak up.

I've also read some of my old posts and think hmm that's not right.

[freddie19]

photos.app.goo.gl/WSrLZ2XZs1rcPVrKA


Think I've finally cracked it.
Let me know if you can see the video guys?👍

[midlifecrisisrd]

Yes, working now 👍

The video that is, not the crankshaft 🤣

Steve

[freddie19]

Cheers Steve,

it gets worse, have a look at this video!😩😵‍💫

photos.app.goo.gl/WbX5MasnKvBdFPkU8

[midlifecrisisrd]

How the feck can a crank pin snap

They aren't even hollow 🤯

Steve

[freddie19]

Looks like it's been welded up and bodged before.

A right cowboy build!👍

Here, he's finally got the cases apart and the crank out......... horrific!🤬

photos.app.goo.gl/beTbk8X3YVhi3hyJ7

[stoney]

 

[arrdy350]

🤯🤯😱 

[rigga]

Well, that's interesting.


What a mess.

[freddie19]

And, as I said earlier that engine had a full £1000 rebuild last December by a so called expert....
.. just shocking! 😵‍💫😩🤬

[midlifecrisisrd]

Totally ripped off 😡

Steve