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Old 08-26-2020, 06:05 PM   #1
XLsior   XLsior is online now
 
Join Date: Aug 2020
Location: Australia
Posts: 1,289
Poor Mans Pool Noodle Cylinder Hone.

Hi, Was going to put this in my XL185 with a Zongshen CG250 swap project thread but I think this information is general purpose DIY maintenance that might help.

My used CG250 had weak compression so I removed the top end to find a fair bit of piston slop and a glazed bore. Clearly it was burning oil.

I checked Aliexpress, piston/ring kit was $25AUD and a new Jug/piston/ring kit was about >$100AUD (shipped)

I decided to try the low cost approach first so went with piston/ring kit went with this...
https://www.aliexpress.com/snapshot/...ctId=752466407

So what to do about the glazed jug...
purchasing a 3prong or dingle hone would defeat the cost saving by not getting a new cylinder kit.

Ive seen people use red scotchbrite but I wanted something more consistent.

So looking around my home MacGyver style, I found a section of pool noodle, some masking tape, a sheet of 600grit wet dry sand paper and some lube oil (whatever you got)

(Disclaimer) this will work on any small engine cylinder to de glaze and apply a cross hatch. It is not a hone to re bore...

Process:
1. wrap the noodle with tape sticky side out.

2. roll the sandpaper around the noodle. Half a sheet was enough for me.

3. lube the sheet and cylinder and insert your hone*

4.by hand using a IN and Twist / OUT and Twist action. clockwise/anticlockwise doesn't matter but be mindful of the sandpaper sheet overlap.

5. Check results every half a dozen or so turns.

6. When you have achieved the desired result you're done and now your new piston rings should seat properly.

Remember this is just a poverty spec solution. Do so at your own risk.

Cheers, XLsior


Attached Images
File Type: jpg inserthone.jpg (81.9 KB, 297 views)
File Type: jpg povertyspechone.jpg (75.4 KB, 314 views)
File Type: jpg honeresults.jpg (31.0 KB, 281 views)


 
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