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I bought another bolens.....


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#31 Bolens 1000 OFFLINE  

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Posted January 10, 2011 - 06:31 AM

Here's a pic of the original paint scheme.

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#32 mjodrey OFFLINE  

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Posted January 10, 2011 - 06:33 AM

That doesn't look to be in too bad of at all.

#33 Nascar3244888 OFFLINE  

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Posted January 12, 2011 - 03:58 PM

HPIM1902.jpg
Heres pics after honing, i do have to say that this was the first cyl i honed, and it came out vairly good but it has this darker line in the center of the cyl that i cant seem to get rid of, i did unfortunitly have to hone about 10 times to get it to this stage so far, i only honed for about 10-15seconds each time but i thought i would stop and get some opinions

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#34 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 04:05 PM

That turned out nice considering how it looked before.

In that dark area.. Does the scoring appear to be deep or is it just more discolored?

If the pitting in that dark area is not too bad you may be able to get by with some over sized rings.
Take your old compression ring and Use the piston to push it about 1/2 way down the cylinder. Check and see what kind of gap you got.

#35 Texas Deere and Horse OFFLINE  

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Posted January 12, 2011 - 04:18 PM

Good thing is this discoloring is low in the bore, it shouldn't bother compression to much. I would stick new rings in it and see how it runs.

#36 Nascar3244888 OFFLINE  

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Posted January 12, 2011 - 04:20 PM

Question...
TO MEASURE.....do i use a feeler gauge.....and i measure the gap where the ring comes together?

Also the piston skirt is bent out and cracked should i just put it down as far as i can?

I dont have a spring compressor for the valves where can i get one? Mower Shop? Do I need a special one?

#37 Nascar3244888 OFFLINE  

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Posted January 12, 2011 - 04:22 PM

Good thing is this discoloring is low in the bore, it shouldn't bother compression to much. I would stick new rings in it and see how it runs.


I think thats where the piston was seized up now that i think about it

#38 Texas Deere and Horse OFFLINE  

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Posted January 12, 2011 - 04:27 PM

NASCAR , thats what I thought too, Yes, you can get a spring compresser at any of your parts houses also, Autozone and others have a tool borrow program.

meaasure at the gap in the ends of the ring.

You are going to replace that piston, aren't you?

#39 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 04:46 PM

:ditto: what Brian said

IMO your going to need a new piston.
Checking the gap with the old rings will give you an idea what to do.
For example if its a fairly big gap then you may want to get .010 oversiize instead of standard. They also sell these rings in Tri-chrome sets as well

#40 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 04:59 PM

Ring clearance:

Top (compression ring) .002 -.035 (thousandths)
2nd Ring (scraper ring) .001 -.025
Oil ring .002- .035
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#41 Nascar3244888 OFFLINE  

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Posted January 12, 2011 - 05:11 PM

oh yes the piston will be replaced i just ment do i put the ring down as far as i can without putting the skirt part in thats is bent....i am assuming you mean turn the piston upside down to push the ring in?.....is all i need is a piston and rings or do i need a rod, and the round shaft that goes through the piston and holds the rod to it?

also do i need to check all the rings or just the compression for clearance and when you check the clearnace you said about .010 over and such....is that if its closer to the higher end of the clearance than to the lower? How do you determine what i need...like for instance say the compression is .018 or something do i need oversize rings?

#42 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 07:54 PM

oh yes the piston will be replaced i just ment do i put the ring down as far as i can without putting the skirt part in thats is bent....i am assuming you mean turn the piston upside down to push the ring in?.....is all i need is a piston and rings or do i need a rod, and the round shaft that goes through the piston and holds the rod to it?

also do i need to check all the rings or just the compression for clearance and when you check the clearnace you said about .010 over and such....is that if its closer to the higher end of the clearance than to the lower? How do you determine what i need...like for instance say the compression is .018 or something do i need oversize rings?



Usually all you need to check is the compression ring as the other rings wear about the same.
Yes, turn the pistion upsidedown and push the ring 1/2 way down. (the reason to push it with the piston is to get the ring straight for an accurate reading).

The bigger the gap the more worn it is.
A perfect clearance would be the .002.... When I replaced my rings I had a gap of around .090 :o. Which was a pretty big gap. I purchased a Tri-chrome set and when I put in the new rings I got .004 thousandths which is good.

If you can get anywhere between .002 and 0.035 you will be all set
If you put the ring in and you have a big gap then you may need to get oversize set.

Hope my rambling didnt confuse anyone LOL
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#43 Bolens 1000 OFFLINE  

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Posted January 12, 2011 - 08:22 PM

Figured you may need a parts list break down
S-7D and S-8D Parts list

#44 Nascar3244888 OFFLINE  

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Posted January 13, 2011 - 05:22 AM

Usually all you need to check is the compression ring as the other rings wear about the same.
Yes, turn the pistion upsidedown and push the ring 1/2 way down. (the reason to push it with the piston is to get the ring straight for an accurate reading).

The bigger the gap the more worn it is.
A perfect clearance would be the .002.... When I replaced my rings I had a gap of around .090 :o. Which was a pretty big gap. I purchased a Tri-chrome set and when I put in the new rings I got .004 thousandths which is good.

If you can get anywhere between .002 and 0.035 you will be all set
If you put the ring in and you have a big gap then you may need to get oversize set.

Hope my rambling didnt confuse anyone LOL


so in other words if i measure the gap and it falls between .002 and .035 then i can get an original size set of rings and if its above .035 then i need oversize.....also where can i get all these parts i will need?

#45 Bolens 1000 OFFLINE  

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Posted January 13, 2011 - 06:48 AM

From my experience so far, even if it initially reads about .050 you will still be ok with standard rings. Anything over that and you will need to get oversize.

Another thing you may want to check is what number is on the top of the piston. If its standard then It will either have a 0 or nothing on it. If its oversize it will say how much (example) .010
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