Nathanwhit1 Posted Tuesday at 08:53 PM Share Posted Tuesday at 08:53 PM So at the weekend my engine in my cruiseliner starting knocking. I’ve started stripping the engine and found a few things so far Video.mov Video_1.mov Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/ Share on other sites More sharing options...
fjh Posted Tuesday at 09:46 PM Share Posted Tuesday at 09:46 PM Sorry to hear bro ! Unfortunately your in the years where they may have been experimenting with two piece pistons pull the pan and up root the pistons! This first try at this didn’t work well for mack you may have a broken piston skirt !The lash you show in the second vid is normal on an engine brake engine! Let us know what you find!😡 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578351 Share on other sites More sharing options...
mowerman Posted Tuesday at 10:10 PM Share Posted Tuesday at 10:10 PM ya catching a knock early will save alotta heart ache,,,good luck,,bob 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578352 Share on other sites More sharing options...
fjh Posted yesterday at 01:17 AM Share Posted yesterday at 01:17 AM On 7/1/2025 at 3:10 PM, mowerman said: ya catching a knock early will save alotta heart ache,,,good luck,,bob Yup ! So Nate what’s going on? Should have the pan off by now! Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578412 Share on other sites More sharing options...
Nathanwhit1 Posted 12 hours ago Author Share Posted 12 hours ago She’s a little bit poorly. So does anybody know what other brand of engines they fitted in cruiselliners like Cummins cat etc Video.mov Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578439 Share on other sites More sharing options...
fjh Posted 11 hours ago Share Posted 11 hours ago Yuck !😡that’s bad news bro! I have never seen a cruise liner powered by anything other than a Mack engine! That doesn’t mean it was a given! I would imagine they a scarce as hens teeth there! You can put anything in anything if you got the time and money! The problem mainly is the front mount set up! Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578440 Share on other sites More sharing options...
mowerman Posted 11 hours ago Share Posted 11 hours ago is everything scored of am i seeing just a layer of oil....last time i had a knock it was a wrist pin,,,i wound up putting a rebuild kit in it,,,and yes ive seen cruise liners with cummins before Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578441 Share on other sites More sharing options...
Joey Mack Posted 11 hours ago Share Posted 11 hours ago Im sorry.. Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578442 Share on other sites More sharing options...
Nathanwhit1 Posted 10 hours ago Author Share Posted 10 hours ago I haven’t a clue what’s happened tbh I think one of the oil galleries must of been blocked or something Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578446 Share on other sites More sharing options...
Joey Mack Posted 10 hours ago Share Posted 10 hours ago Do you intend on pulling the engine ? Is it possible to have a machinist repair the crank shaft in your area ? 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578447 Share on other sites More sharing options...
Mark T Posted 10 hours ago Share Posted 10 hours ago 18 minutes ago, Nathanwhit1 said: I haven’t a clue what’s happened tbh I think one of the oil galleries must of been blocked or something Maybe something to do with why someone wrote on the throw ? Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578448 Share on other sites More sharing options...
Geoff Weeks Posted 9 hours ago Share Posted 9 hours ago My experience it is almost always cheaper to go back with what it came with. That much movement in the Big end, means the crank is toast. You will have to assess the condition of the block and components. When I had something similar happen, I swapped in a used engine (for short term) and a re-ground crank (.010-.010) and saw many more miles out of the engine. engine swaps (for a different make/model) the devil is in the details. It will run you ragged looking for a special bracket or some other thing to get everything to play together. In some cases it make take a custom made part. If you are going to swap my vote would be Gardner 8LXB! (Since I'm spending your money not mine!). 2 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578452 Share on other sites More sharing options...
fjh Posted 9 hours ago Share Posted 9 hours ago By look of the rod video That one rod had nothing left done like dinner me thinks! Just bad news all around! Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578459 Share on other sites More sharing options...
fjh Posted 9 hours ago Share Posted 9 hours ago 1 hour ago, Joey Mack said: Im sorry.. me too! Total bummer! Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578460 Share on other sites More sharing options...
Joey Mack Posted 9 hours ago Share Posted 9 hours ago I dont like this thread.. He has worked hard on this truck. I wish he was in the States.. I would send him the crankshaft that i have.. Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578461 Share on other sites More sharing options...
Geoff Weeks Posted 9 hours ago Share Posted 9 hours ago In the states, you wouldn't need to, there would be some close by. My Boss at the bus company once air freighted a Gardner short-block across the pond, I don't know what that cost him! No idea, but might be worth looking for freight-forwarder, and find out what it would cost to ship to you and what the duties would be. Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578465 Share on other sites More sharing options...
Nathanwhit1 Posted 3 hours ago Author Share Posted 3 hours ago Trust me I’m not liking this thread either 🤣🤣 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578472 Share on other sites More sharing options...
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