MK25 EVO, no more washer #17?

[ladra]

Hello,

I noticed that some MK25 EVO's don't come with washer #17. Is this normal?

I'm not 100% sure but it seems like SP removed that part starting in 2018...

Just guessing that this part is not really required since EVOs come with the bushing (capsule)?

 

[rhwestfall]

Isn't it an IP shim?

 

[Newdiv]

There is a plastic liner #25 in its place, the bushing you’re referring to. It lines the whole “compartment”.

 

[ladra]

@rhwestfall ,

I believe you are right, but I thought that was the "old" way of adjusting IP. "New" way being the adjustment screw on EVOs.

 

[rhwestfall]

Having converted MK-20's to MK-25's, the screw adjuster only gets you so much range...

 

[ladra]

@Newdiv ,

Yes, there is a bushing that fits into #25 (body). All the EVOs have that bushing but some also have #17 and some don't. Just wondering why...

 

[ladra]

@rhwestfall ,

I see. Maybe you can help with answer this other question.

MK25 EVO , IP adjustment (below 135psi)

I thought that wash/shim would help. Adding more shim (#17) will lower IP, correct?

 

[Newdiv]

As rhwestfall said, to increase ip if the screw adjuster doesn’t get it there. I just noticed in another thread that you want to drop it to 130. You could remove that “bushing” and use a thinner shim to drop it, but it wouldn’t have the benefit of being an evo anymore.

Adding shims will increase ip, supposedly by 5psi

 

[Newdiv]

Actually, it is in the schematic.

 

[ladra]

@Newdiv ,

Roger. I need to check if the shims are present.

Thanks again!