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Lisle 36500 Ridge Reamer

4.0 out of 5 stars 35 customer reviews

Price: $47.16 & FREE Shipping on orders over $49. Details
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  • Big range scraper action
  • Range 2-11/16 inches - 5-5/16 inches
  • Comes in clam shell package
  • Complete ridge removed in just a few easy turns
  • Offset jaw guides assure rigidity throughout the range
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$47.16 & FREE Shipping on orders over $49. Details Only 9 left in stock. Sold by Northern Auto Parts and Fulfilled by Amazon.

Frequently Bought Together

  • Lisle 36500 Ridge Reamer
  • +
  • Lisle 33500 Piston Ring Installer
  • +
  • Powerbuilt 648433 Piston Ring Compressor
Total price: $63.51
Buy the selected items together


Product Information

Technical Details

Brand Lisle
Item Weight 1.7 pounds
Product Dimensions 5.5 x 4.9 x 3.6 inches
Item model number 36500
Manufacturer Part Number 36500

Additional Information

ASIN B000P0ZK1O
Customer Reviews
4.0 out of 5 stars 35 customer reviews

4.0 out of 5 stars
Best Sellers Rank #102,666 in Automotive (See top 100)
#3 in Automotive > Replacement Parts > Brake System > Master Cylinders & Parts > Hoses
Shipping Weight 1.7 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available July 7, 2004

Warranty & Support

Warranty, Parts:Parts
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

Rollers assure easy turning in cylinder. Exclusive stabilizer spring allows operator to take selective cut to minimize chatter. Spring-loaded carbide cutter follows contour of cylinder. Complete ridge removed in just a few easy turns. Offset jaw guide assure rigidity throughout the range.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
I was rebuilding a Kawasaki V-twin lawn mower engine in a John Deere GX345. The cylinder OD is just under 3" so that was my search criteria for a reamer. I personally have never used a ridge reamer before because usually if it's that bad the rest of it is junk and it's just cheaper to buy a new engine. In this case the engine was in good shape and the cylinders were still within max wear limits. One of the things I noticed about the description was that it has rollers to help guide it in the cylinder, this was one reason I bought it. It was a perfect fit in my 2.9" cylinder, cut the ridge off the cylinder very cleanly and the rollers were definitely a plus in guiding it around the cylinder. I could not have been happier with it.

I have to agree with a couple of the other reviews about the lack of clear instructions. Being a mechanic for many years, I had a basic understanding of the process and sort of knew what I was doing. It has a wide carbide knife that "scrapes" away the ridge. The key is to make many passes that shave just a little off each time. Be careful not to take off too much. I can see how this would be easy to cut off too much if you are not careful.
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Verified Purchase
The directions in the package are not very clear. But after working with it, it worked as expected. I recommend it. So, advice for the next buyer: Place in the cylinder and tighten. Place the 13/16" closed end over the large nut, place the wrench so that the handle is over the cutting blade portion of the reamer. Apply pressure with a 3/8" drive ratchet with 3 inch extension and 13mm socket on the tightening bolt as you turn the wrench. You have to hold it down or it will wedge as you turn the 13/16" wrench and you will damage your cylinder (produce gouges). Turn about 10 times around, tighten, repeat. I recommend only going 1/2 way into the ridge before moving to the next cylinder. Once done with all cylinders, go back to the beginning and finish each cylinder. By now, you have the experience to complete without gouging into the cylinder wall. I only went to the very edge of the ridge in my cylinders as the hone is slightly wedged so that it will start honing at the top of the cylinder and gradually work into the ridge as you tighten top down. I then used a Flex Hone to remove the cylinder glaze and dress the cylinders. Other advice, place the engine in an engine stand to keep stable and turn the engine so that it is at a 45 degree angle to the horizon, on the second time through, work each cylinder from the opposite side of the stand so you do not always stop the wrench turn at the same location each time.
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Verified Purchase
I only used this tool on 1 cylinder . The tool worked well removing the carbon build up but I didn't like the aggressive bite it had so I finished the rest by hand and decided not to use it on the rest of the cylinders. In my opinion the bevel it leaves is too deep and is dangerously close to the top piston ring for the engine I was rebuilding. It's been sitting in my shop for a couple months. When I picked it up it completely fell apart. The O ring is cracked and very brittle. Even when it was new out of the box the O ring seems undersized and is very stressed due to the weight of parts. Very disappointed with this overpriced piece of junk.
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Verified Purchase
This is a very handy piece of kit for the motor mechanic. The design has been improved by the use of rollers that some vintage reamers didn't have. Some people may question the need for such a tool but there are two good reasons for removing the wear ridge in the cylinder. (1) Removing the ridge will make the pistons much easier to remove. (2) If the ridge is left and new piston rings are fitted, trouble is likely to ensue. The old rings will have worn to suit the ridge but new ones won't have worn. With the ridge still in place the new rings are liable to break when the engine is revved. At one time in the UK it was possible to buy "groove-dodger-rings" for the top piston ring but these seem to have vanished from the marketplace.
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Verified Purchase
If you want to remove the ridge of the cylinder in a nice clean fashion that does it with ease. Then this is not the reamer for you. The o-ring rubber band is a joke as in it breaks after the second hole, the centering bolt like to back out and is made of cheap soft steel so it's easy to round the head. Oh and don't forget that when the bolt backs out and the centering fingers and knife back off all in one quick motion, it leave a nice gouge in the top of the cylinder! I guess that's ok though since the machine shop can fix that for an added cost! This thing is a joke! Spend the extra and buy a lathe style reamer. much easier and smoother to use.
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Verified Purchase
I am restoring a small bore MG engine and I had been unable to buy a ridge reamer at the local auto parts stores that
would work in an engine with a bore smaller than three inches. This Lisle product works in bores as small as 2 5/8 inches
and fits my needs perfectly. I am very satisfied with the product, it works as promised.
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Verified Purchase
I've used this reamer to pull out some pistons that needed some work where a nut fell into the the combustion chamber but didn't break anything to the point of needing replacement. Easily allowed me to pull the pistons without any damage to the rings and get them back in again. Really easy to use and aligns great.
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