Leakdown testing |
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Leakdown testing |
914rick42 |
May 7 2007, 12:27 AM
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#1
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Newbie Group: Members Posts: 21 Joined: 22-June 06 From: Van Nuys Member No.: 6,291 |
Good evening all,
I'm fairly new to this forum, having posted 3 or 4 times. I would like to build a 2056 motor. Someone out there said that if one can only afford a single item from Jake Raby, then get a cam from him. I have read that Jake is the best for cams, and if that is the case, then who would I get the other major parts from? Also, what does leakdown testing check for? I know what a compression test is but have never heard of leakdown testing. Hi Jake, Do you sell a dvd of a 2056 engine build by itself, or do I have to buy an engine kit? Thanks to you all for your help and knowledge. Rick |
McMark |
May 7 2007, 02:08 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Leakdown Testing
Leakdown measures the amount of air that is escaping past the piston rings or intake/exhaust valves. If you have 20% leakdown, you're losing 20% of your 'power' to gasses escaping where they shouldn't. 2056 Building Jake's online store, the Type4Store, is pretty price competitive and definitely sells some parts that aren't available elsewhere (modified oil pumps and modified cam gears are two easy ones). Sources beyond that are Aircooled.net or Pelican Parts. I concur that the cams that Jake has developed are by far the best in the industry. Your biggest issue is going to be reliable machine work, not parts. There is a Type IV rebuild video available from the Type4Store, it's a great primer. Get it and watch it three or four times. The Haynes manual has a lot of good info, as well. |
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