Benny Posted October 23, 2017 Share Posted October 23, 2017 I have an 01 granite. New motor has 80,000 miles, truck had 443,000 at time of install. Has excessive blow by and is using or leaking about 1/2 gallon a day (10hrs). Smokes on idle grayish. Please help! Was quoted 14,000 for a motor or 10000 for rebuild. But I’m hoping that I don’t need one! Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/ Share on other sites More sharing options...
fjh Posted October 23, 2017 Share Posted October 23, 2017 (edited) Check your turbo! and fix the leaks first Edited October 23, 2017 by fjh 2 Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383284 Share on other sites More sharing options...
Benny Posted October 23, 2017 Author Share Posted October 23, 2017 The oil is leaking out of the oil line from the oil cooler to the jake. And oil temp is always hotter than the water temp. Thanks for your reply! Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383295 Share on other sites More sharing options...
mrsmackpaul Posted October 24, 2017 Share Posted October 24, 2017 Are you sure you dont have a blockage and the oil cant get pumped around and cooled ??? Paul Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383324 Share on other sites More sharing options...
Mack Technician Posted October 24, 2017 Share Posted October 24, 2017 Once you have leaks fixed and turbo inspected build a manometer and measure the blow from the crankcase. If you have 6-8" of blow your heading to the shop. Also check your air intake system for the dust leak that took out your piston rings. Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383331 Share on other sites More sharing options...
Benny Posted October 24, 2017 Author Share Posted October 24, 2017 6 hours ago, mrsmackpaul said: Are you sure you dont have a blockage and the oil cant get pumped around and cooled ??? Paul Maybe. Would you have any suggestions on where to start first, if you don’t mind. Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383350 Share on other sites More sharing options...
Benny Posted October 24, 2017 Author Share Posted October 24, 2017 3 hours ago, Mack Technician said: Once you have leaks fixed and turbo inspected build a manometer and measure the blow from the crankcase. If you have 6-8" of blow your heading to the shop. Also check your air intake system for the dust leak that took out your piston rings. Okay will do! Thanks for the reply. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383351 Share on other sites More sharing options...
mrsmackpaul Posted October 24, 2017 Share Posted October 24, 2017 57 minutes ago, Benny said: Maybe. Would you have any suggestions on where to start first, if you don’t mind. start pulling things apart and checking by eye and manually with air Most things can be checked a fair way with out spending bugger all What type of motor is in the truck ? Paul Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383352 Share on other sites More sharing options...
Mack Technician Posted October 24, 2017 Share Posted October 24, 2017 Manometer Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383356 Share on other sites More sharing options...
Benny Posted October 25, 2017 Author Share Posted October 25, 2017 On 10/24/2017 at 2:52 PM, mrsmackpaul said: start pulling things apart and checking by eye and manually with air Most things can be checked a fair way with out spending bugger all What type of motor is in the truck ? Paul E7 etech Quote Link to comment https://www.bigmacktrucks.com/topic/51488-using-oil-excessive-blow-by/#findComment-383438 Share on other sites More sharing options...
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