Boygofast 47mm sleeved cylinder info

[HumanPerson]

I'm lost

 

[JerboaJohn]

long tiny bolt threaded down thru that thick sleeve and can't move bcs it's attached thru the head externally.

 

[JerboaJohn]

just like the head is bolted on, but this stud goes into the top edge of the 4 or 5mm thick sleeve

 

[HumanPerson]

It'll be ok

 

[Street Ryderz]

Unfortunatly there is no top lip on the sleeve,and thtey are not interference fit just pressed in with no indexing etheir.Being that they are now disimular metals with different rates of expansion the sleeve's have been proved to drop or shift,yes when used hard but hard but also in normal use just due to heat.

 

[Street Ryderz]

long tiny bolt threaded down thru that thick sleeve and can't move bcs it's attached thru the head externally.

I see what you're saying,but no easy task!

 

[JerboaJohn]

I just dont understand why they come up with a good idea but can't make it right,,

 

[Spare_Parts]

I'm think multiple set screws. I have an advantage with the case reed that the intake bolt holes can also be used for set screws.

 

[Frogslayer]

Damn so you have a performance cylinder that you don't dare perform on!

 

[Spare_Parts]

Who?

54mph

• Spare_Parts
• Oct 2, 2018

Added new picture to first post. The BGF cylinder is 1mm taller than the Zeda.