How to Measure a Small Engine Cylinder Bore for Out of Round & Taper
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- čas přidán 2. 02. 2021
- Using a telescoping gauge and micrometer I explain how to measure and calculate out of round and taper. Comparing to manufacturers specifications you can decide if a repair is going to be cost effective or not.
#cylinderbore #outofround #taper
Good video mate for the technical crew. Hope all is well.. the spanners have just showed up.. will do a shout out in a week.. hope all is good brother
Thanks Mick! All is well here!
I’ve never seen one of these measuring devices like u have. I use dial calipers and micrometers at work
Very interesting video mate
Thanks AJP!
Another good video
Thanks William!
I’d love to see you do a video on rebuilding an engine from start to finish. Don’t edit out anything Show the good and bad. !! Lol. The video would probably do real good maybe go viral
That could be a good video.
Good video explaining the prebuild inspection. I wouldn't rebuild at 30 over they are always short lived engines, run to hot. Just my 2 cents
I absolutely agree with you Rusty!
The biggest issue these days is just cost... overbore, hone, pistons, rings, gaskets, labor.... and so on. Hard for small engine repair guys when the parts and labor involved becomes as much as another engine or just replacing a mower or saw.
I would think it was measured wrong just guessing , the taper will be larger at the top 9 times out of 10 , and id start with the crank , since theres no bearings , if the crank aint in spec its toast , and you cant bore them with a hone , so who has the hold down fixture to bore the block ,the sunnex i seen wouldnt bore it after i had it locked down it was to tall for my boring bit to fit over ..what to you use to lock it down in the boring machine square with the crank ?
How often do u rebuild engines??
I usually do a few full rebuilds a year.
So then you cost out a couple of estimates and the customer makes the call, or do you come down on one side or the other?
Yes, I will give him a couple of estimates, and my opinion, but ultimately it is up to the customer to decide.
If i was that customer i would just buy a newer one . Thats to much time and money for me . Great video thanks for sharing
I definitely agree! Thanks Dr.
@@kbssmallenginerepair2615 i rarely have a customer who says rebuild it ... ive had 1 b4 and i wont do it again . Lol
It just cheaper and faster.
Kile if you go 10 over you will be good to rebuild if you spend time with those tools the time spent will count you more then the rings
I definitely see what you are saying. But I cannot bore it .010 or .020 because it is already at 3.024x. The largest I could go is .030.
You could go bore it then sleeve it but would the cost be worth it
@@schaeferslawngardenandpowe1924 Good point. At this point my customer is weighing all of his options but is leaning towards not putting any more money into it. He has gotten a good 26 years of hard use out of the machine. Thanks for sharing Schaefer!
Good video kb,,, I just can't come out with rebuilds. If u go 30 it'll run very 🔥,,
Oversized rings hav a tendency to break.
U made the right call. New engine.
If the customer wants it rebuilt, disclaimer for sure. Ur not responsible for future failure. Awesome job.
@@clsmallenginerepair3814 thanks Carl! Some people just get sentimental ties and try and do everything they can to save it. This guy bought this for his wife for their 30th wedding anniversary. But like you said, we can save the machine by engine swapping.
Better yet go 20 over
Costs not count