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Old 12-01-2006, 08:41 AM   #1
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guys,
what do you think about bearing puller from ofna, is that tool can pull rear ball bearing and install in a snap? i need opinion about this stuff before i,m buy it.thanks guys
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Old 12-01-2006, 08:48 AM   #2
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The bearing puller for small block engines won't work well, it keeps slipping out.
But the bearing puller for big block engine works good.
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Old 12-01-2006, 08:57 AM   #3
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i,m gonna use it for all my .21 size engine. so this thing worth to buy?or not,or is there any other tool to make it happen?thanks
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Old 12-01-2006, 09:39 AM   #4
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Quote:
Originally Posted by dotmatrix
i,m gonna use it for all my .21 size engine. so this thing worth to buy?or not,or is there any other tool to make it happen?thanks
Warm up the case before you pull bearing out-it will help to bearing come out easy and will not damage the bearing's seat.
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Old 12-01-2006, 09:43 AM   #5
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hi,edwardn,
if i,m using ofna bearing puller, should i have to warm up the case too?thanks
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Old 12-01-2006, 10:11 AM   #6
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Quote:
Originally Posted by dotmatrix
hi,edwardn,
if i,m using ofna bearing puller, should i have to warm up the case too?thanks
Yes, absolutly I will recomend warm up case in any way you will pull out bearing-using tool or not. If you don'y use tool-then you have to heat up case more, with tool slightly less.
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Old 12-01-2006, 03:28 PM   #7
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Default FYI

I had bad luck using it on the Novarossi +35. That motor has a 14.5 crank and the ofna tool is good for 14mm rear bearings. I thought the .5 would not make a huge difference, but i guess it does. The tool just kept slipping. I must be honest and admit I did not heat up the motor. To me, if you need to heat it up, then what good is the tool at the track. At home, i heat the case to 350-375 degrees, bang it once or twice on a 2 by 4 and it comes out easily. When you are away at a big race, how do I heat up the engine??? A heat gun works, but I dont like using them because it does not heat up the case evenly like putting it in an oven.
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Old 12-01-2006, 05:18 PM   #8
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hey guys

just my 2 cents, but if you are serious about bearing removal and or installation there are 3 tools that are an absolute must.

JP makes the best removal tool for front bearings, check out www.jpracing.com, 93862 is the part number for it and here is a copy to the page

http://www.jpracing.com/en/products/jp-accessories/

the second best tool to have for instillation of the front and rear bearings is the novarossi bearing installation tool, the sizes vary from motor to motor depending on the rear main bearing size, but its an absolutly essential tool if you want to do all of this at the track or wherever without havint to use heat, here is a link to it as well

http://www.novarossi.it/eng/accessori_index.htm

the part numbers are as follows
39600-11.0mm
39601-11.5mm
39000-13.0mm
39001-14.0mm
39002-14.5mm

and the single best tool for removal of the rear main bearings is the RB bearing removal tool, its available with multiple head units that are designed for different size bearings and is an absolute dream to use

here are the links
http://www.rbproducts.com/mainEn.php...ille=DIV&go=go

The rb installation tools for the rear main bearings are also nova based but its their rear bearing removal tool that is very unique and totally worththe money.

all in all these 3 tools will run you in excess of 300 dollars, but if you are serious about care and maintenance of your engine they are invalueable

just my 2 cents
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Old 12-01-2006, 06:25 PM   #9
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thanks dremelboy,
but i,m looking the tool that around $50, any opinion guys?
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Old 12-01-2006, 06:42 PM   #10
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DOES THE OFNA ALSO INSTALL BEARING? IS IT ALL IN ONE?
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Old 12-01-2006, 07:51 PM   #11
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i dont know yet, that why i put this thread.
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Old 12-01-2006, 08:27 PM   #12
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JP has the best tool, you can check on the website.
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Old 12-02-2006, 12:41 AM   #13
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Kamikazercracing.com has the full line of JP tools in stock. contact them to find pricing.


although you spend plenty of dough on the tools, theyre completely worth it.
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Old 12-02-2006, 01:39 AM   #14
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Quote:
Originally Posted by dotmatrix
i dont know yet, that why i put this thread.
ok i just found out its also an installer.but it doesnt work on removing the +35 bearing.
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Old 12-02-2006, 09:15 AM   #15
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is it gonna work on mega 21 too?
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