SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 No I’m not getting any codes for that Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513831 Share on other sites More sharing options...
Onyx610 Posted October 28, 2022 Share Posted October 28, 2022 I believe you want see a code if it’s occasionally a quick intermittent issue. It has to be un happy for a little while to log one. I believe….. Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513832 Share on other sites More sharing options...
Joey Mack Posted October 28, 2022 Share Posted October 28, 2022 Sledog, if you find and fix a broken wire today, that may be all you need.. just saying..... Jojo Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513833 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 Is there a way to test sensor with ohm meter? Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513834 Share on other sites More sharing options...
Joey Mack Posted October 28, 2022 Share Posted October 28, 2022 (edited) Yes. 900- 1500 ohms. At around 70 degrees Faranheight... Test across the 2 pins in the plug... Jojo Edited October 28, 2022 by Joey Mack More content needed Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513836 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 Joey im only getting about 4 ohms on sensor. sledog Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513837 Share on other sites More sharing options...
Joey Mack Posted October 28, 2022 Share Posted October 28, 2022 Replace it,. Did you pull the loom back and check integrity of the engine side of the wires..? Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513838 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 Joey the first couple feet look good to where it goes into big loom by the engine sledog Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513840 Share on other sites More sharing options...
Joey Mack Posted October 28, 2022 Share Posted October 28, 2022 Sounds good. You should be ok.. Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513841 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 Joey…Ok put new sensor in and still shuts down when I pull cam sensor…. is there a way to see if new sensor is picking up teeth on flywheel ? and I recently had new aftermarket flywheel housing installed ( Mack had part on Bo).looking in the hole the teeth only cover half …is that ok? I have 2mm clearance between teeth and end of sensor Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513853 Share on other sites More sharing options...
Onyx610 Posted October 28, 2022 Share Posted October 28, 2022 Has this started since the flywheel? Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513857 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 No it was starting to have a fish-bite miss before…. Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513858 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 I don’t if that sensor was good or bad when the housing broke… Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513859 Share on other sites More sharing options...
Onyx610 Posted October 28, 2022 Share Posted October 28, 2022 Did you ohm the new sensor? Just to see where it’s at? Check all the wiring? Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513860 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 The new was around 800 ohms… Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513862 Share on other sites More sharing options...
Joey Mack Posted October 28, 2022 Share Posted October 28, 2022 who put the after market flywheel in, and did it come with the ring gear already installed? Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513865 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 Aftermarket bell housing same flywheel …I had a Local shop work on it Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513867 Share on other sites More sharing options...
Joey Mack Posted October 28, 2022 Share Posted October 28, 2022 (edited) ok, im going out on a limb... is the sensor hole in the same spot? here is a way to check the ring gear position with it all together.. ..... there are 2 half teeth that the sensor reads. if the ring gear is in the right position, those half teeth will be number 23+ 24, counting from the tooth that is at the 45 degree mark on the flywheel. start counting on that tooth, mark it with paint. set the 45 degree mark in the center of the sensor hole, then bar the engine over ( flywheel) will turn clockwise) count the teeth as you go. when yo see the first half tooth, your count should be at 23.. I hope i was clear enough.. jojo Edited October 28, 2022 by Joey Mack more content needed 1 Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513869 Share on other sites More sharing options...
Onyx610 Posted October 28, 2022 Share Posted October 28, 2022 https://f01.justanswer.com/HeavyEquipmentTech/7977f3ec-83db-47e4-9d6a-f6babf391cd7_Mack_Engine_pos_sensor_bulletin45-sb221037.pdf Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513870 Share on other sites More sharing options...
Onyx610 Posted October 28, 2022 Share Posted October 28, 2022 (edited) I wasn’t aware that this needed to be timed. When I did the trans/clutch on an etech I just put the flywheel on after it was resurfaced. Well shit…🤔 Edited October 28, 2022 by Onyx610 Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513880 Share on other sites More sharing options...
SLEDOG Posted October 28, 2022 Author Share Posted October 28, 2022 Wow that’s a lot…so the ring gear might be on the flywheel wrong? Or slipped? how do I know where the 45 degree mark is? Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513884 Share on other sites More sharing options...
Onyx610 Posted October 29, 2022 Share Posted October 29, 2022 10 minutes ago, SLEDOG said: Wow that’s a lot…so the ring gear might be on the flywheel wrong? Or slipped? how do I know where the 45 degree mark is? You and I are about to both learn something….fjh is here, he will lead the class haha Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513885 Share on other sites More sharing options...
Joey Mack Posted October 29, 2022 Share Posted October 29, 2022 Like I said... going out on a limb.. there was an issue with flywheel housing and or flywheel.. Im giving you some free tests to do, to ensure it is not something that would be missed, even though it is a far off possibility.. Most guys start throwing 'Laptop reccomended' parts at it spending thousands of dollars for nothing.. I laid out a simple check that can be done in an hour.. then if its good, you rule it out and move to another test.. as far ass the hash marks,,, have you ever seen the edge of an e-tech flywheel? or done a proper valve adjustment? Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513887 Share on other sites More sharing options...
Onyx610 Posted October 29, 2022 Share Posted October 29, 2022 We understand that, but how does he find 45 degrees. I didn’t see any marks on the flywheel and randomly threw back on…I wasn’t aware this mattered. Truck does run fine though somehow… Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513888 Share on other sites More sharing options...
Joey Mack Posted October 29, 2022 Share Posted October 29, 2022 Buddy, I aint there, so I am trying my best to understand his posts, and there was more added to the posting, so then I start asking more questions, or think of crazy ideas... besides, it is running on the cam sensor only, so there is where Im at.. we'll get it, The team will get this fixed for him.. as far as the degree marks,,,, they start at '0' and go to 45 degree's.. its on the same edge that the valve adjustment marks are...right before 1&6 marking.. '0' is true TDC... jojo Quote Link to comment https://www.bigmacktrucks.com/topic/70625-ai-460-cutting-out/page/2/#findComment-513891 Share on other sites More sharing options...
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