Ray57 Posted January 4, 2023 Share Posted January 4, 2023 Vin check please 1M1AA18Y61W138867 Mack ch 613 need more info Quote Link to comment Share on other sites More sharing options...
Mackpro Posted January 4, 2023 Share Posted January 4, 2023 Built 7/21/2000. Regular ETECH 460. Fuller 10 speed FR016210C , no engine brake, 56” flat top sleeper, originally a 427 HP but upgraded to a 460 at some point. Air ride suspension with Mack 92/93 carries 4.17 gears Quote Link to comment Share on other sites More sharing options...
Ray57 Posted January 4, 2023 Author Share Posted January 4, 2023 U mean no engine brake at all because i put the engine brake and works but not that strong thanks for the great info Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted January 4, 2023 Share Posted January 4, 2023 The engine brakes on that engine were weak from the start. There were a few updates to try to improve them.. maybe get the valve adjustment checked, and set the engine brake gap to .021" ,. Quote Link to comment Share on other sites More sharing options...
Mackpro Posted January 4, 2023 Share Posted January 4, 2023 2 hours ago, Ray57 said: U mean no engine brake at all because i put the engine brake and works but not that strong thanks for the great info The software page said no engine brake but I went back on the parts side and it does have the Jacob’s engine brake. As Joey said , the jakes on these engines are mostly noise makers . But there are a ton of updates that can be done to help them perform better, everything from high volume oil pumps to external oil line kits to plunger lots. Some items might no longer be available though. Quote Link to comment Share on other sites More sharing options...
Ray57 Posted January 4, 2023 Author Share Posted January 4, 2023 Thanks so much good to know i will bring to my mechanic to do a valve adjustment Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.