OakRidgeMack Posted August 10, 2008 Share Posted August 10, 2008 Is a '72 R400 suitable for a Jake Brake. What would be needed to install a Jake? Quote Link to comment Share on other sites More sharing options...
fjh Posted August 10, 2008 Share Posted August 10, 2008 Is a '72 R400 suitable for a Jake Brake. What would be needed to install a Jake?What sise is the engine? 237? Quote Link to comment Share on other sites More sharing options...
vanscottbuilders Posted August 10, 2008 Share Posted August 10, 2008 Call Barry at Watt's Mack. If the engine is a two valve Mack diesel,they have a TEC brake for it. TEC makes a duplicate of the Jacobsengine brake for these engines. Jacobs brakes are out of production for them.If it's an R-400 with a Scania diesel, however, the TEC brake may not be the answer.Good Luck,Paul Van Scott Quote Link to comment Share on other sites More sharing options...
OakRidgeMack Posted August 11, 2008 Author Share Posted August 11, 2008 Yes it is a R 400 with a Scania diesel. It has the ENDT475 motor. Quote Link to comment Share on other sites More sharing options...
vanscottbuilders Posted August 15, 2008 Share Posted August 15, 2008 If the TEC brake won't work (call Barry),you might try a PAC exhaust brake, which couldbe very effective on this engine, and a lot simplerto install.We've had some real good discussions on this forum aboutexhaust brakes. I think the long and the short of it is thatthe valve train needs to be healthy before installing the brakeor you run the risk of piston/valve contact, which is rarely good.Paul Van Scott Quote Link to comment Share on other sites More sharing options...
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