Mackpro Posted December 21, 2017 Share Posted December 21, 2017 It was my buddy's CV with a 460 Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-387901 Share on other sites More sharing options...
Racecorr Posted December 21, 2017 Author Share Posted December 21, 2017 On 19/12/2017 at 9:00 PM, Mack Technician said: Only thing not consistant is the coolant filter blowing out. It should be on its own closed loop with the water pump, as far as I can tell. That was before the in-frame. Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-387903 Share on other sites More sharing options...
Racecorr Posted December 21, 2017 Author Share Posted December 21, 2017 On 20/12/2017 at 9:02 AM, fjh said: Now As for the coolant filter we once had one of these and it was low liner protrusion same symptoms YOU HAVE rad cracking AND WOULD BLOW THE FILTER OFF Last resort thought! throws up a red flag for me! check the screen if its not there your going on a head trip in my opinion! I did have that filter split on me...and maybe also a lower hose split...but that was before the in-frame, and the same thing was said, bad liner...so we may have been dealing with multiple issues, the bad liner causing the filter failure, and something else causing the radiator failure... maybe? Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-387905 Share on other sites More sharing options...
Mack Technician Posted December 21, 2017 Share Posted December 21, 2017 2 hours ago, Mackpro said: It was my buddy's CV with a 460 I'm keeping a tally in my head. Always felt 460HP was a cruel request for that block. Macncheese recently lost his heads too. He had the hot rod AI467HP (at the wheels) engine. You know these guys are running sanely because it's their truck. Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-387907 Share on other sites More sharing options...
fjh Posted December 21, 2017 Share Posted December 21, 2017 22 minutes ago, Mack Technician said: I'm keeping a tally in my head. Always felt 460HP was a cruel request for that block. Macncheese recently lost his heads too. He had the hot rod AI467HP (at the wheels) engine. You know these guys are running sanely because it's their truck. Yup its pushing the note a tad! We just had long time customer show up yesterday with a leak behind the compressor gasket leak RIGHT ! NOT !!! Cracked a block ! Kinda sad he has spent good money this year rebuilding an engine just to have the block give out! Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-387908 Share on other sites More sharing options...
Dirtymilkman Posted December 21, 2017 Share Posted December 21, 2017 This sounds like a shop rag in the elephant hose. Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-387915 Share on other sites More sharing options...
Mack Technician Posted December 22, 2017 Share Posted December 22, 2017 5 hours ago, fjh said: Yup its pushing the note a tad! We just had long time customer show up yesterday with a leak behind the compressor gasket leak RIGHT ! NOT !!! Cracked a block ! Kinda sad he has spent good money this year rebuilding an engine just to have the block give out! Nasty. Stuff like that can push a customer right into a brand X. Was it a 460? My buddy is getting a 5 bunk, tri-axle log trailer to stick behind the Granite tractor we have been tweeking. Stories like yours make me nervous. He is a born operator, but I'd gamble a lot of these guys are also. Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-387927 Share on other sites More sharing options...
fjh Posted December 22, 2017 Share Posted December 22, 2017 AC 460 pulled b trains for ever with this till now! That's likely why! Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-387934 Share on other sites More sharing options...
Racecorr Posted January 8, 2018 Author Share Posted January 8, 2018 Ok fellas, I've heard from my mechanic and it appears to him that the screen is about 15%-20% blocked. Question, is that enough blockage to cause all of these radiator problems, or should he keep looking for the culprit??? Also, I've found out that the motor is a AC, and the water pump has been changed, does anyone know the difference between the two pulley sizes?? Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-389263 Share on other sites More sharing options...
Racecorr Posted April 29, 2018 Author Share Posted April 29, 2018 Ok fellas, after a good flush that produced about a cup of some unidentifiable scale and a new oil cooler inlet screen, my truck has ran flawless. Thanks for all the help. Quote Link to comment https://www.bigmacktrucks.com/topic/51982-head-scratcher/page/2/#findComment-397820 Share on other sites More sharing options...
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