Piston ring installation minarelli ac 50cc to 70cc (naraku) By masterburt (Read 5,310 times)

[masterburt]

Hey guys,

I'm still looking for someone to anshew my question where this funny shaped spring/ring sits on the piston any idea's guys Sachs sx1 1e40qma engine

[jvino]

I believe those are your rist pins burt. That rounded piece in the piston goes on your connecting rod and those clips have a spot on both sides to hold it together. If your doing a rebuild you might want to just go ahead and also purchase the bearing for the connecting rod. Hope that answers your question good luck burt.

[jvino]

Also don't forget to use motor oil when putting the piston onto the jug. If you don't you could take a chance of scoring the walls and spending more money to replace the sleeve also.

[Alleyoop]

Here is a a great tutorial by our OWN CHIEF RICH with pictures: A complete tear down and put back together of a motor. This shows you how to do everything on the motor.
Alleyoop
scooterdoc.proboards.com/thread/6884/gy6-project?page=3

[jvino]

Alleys post is better I defentaly recommend looking at it good luck burt keep us posted.

[masterburt]

Yes i know about the clips. the problem im having is trying to locate where that pentagon shaped spring/ring goes.You can see it in the above picture behind the piston rings it's slightly smaller than the rings much thinner and does not reach all the way around ?

[gavos12]

did you get anywhere with this, i'm having the same trouble

[cyborg]

i'm sure it's the oil scaper ring and sits in the groove under the bottom ring,,,i would call the guys at scooter dynasty,,,to double check,,,also the rings have to be oriented so the T or J is up,,,but i would give them a call

[gavos12]

well i put it in the bottom slot i was just not sure if it went in the top or bottom slot. its a very nice kit i understand that this kind of work is normally carried out by a qualified installer, but they ain't they are sold to consumers and are installed by consumers. i have done everything to my bike myself and have found it ok. you do hit little snags like this though due to not having any installation instructions or a guide. i bought a top perf trophy kit in the past that had a guide ie torque settings etc. nothing from naraku what so ever blank box one little guide wouldnt hurt

[gavos12]

are they always put on the bottom ring not the top. i hope so i dont want to see that piston ever again

[Alleyoop]

Some have the funny oil ring some do not:
Alleyoop

CLICK TO EXPAND PICTURE.