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 Thursday at 01:17 AM Share Posted Thursday 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 Thursday at 09:25 PM Author Share Posted Thursday at 09:25 PM 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 Thursday at 10:06 PM Share Posted Thursday at 10:06 PM 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 Thursday at 10:23 PM Share Posted Thursday at 10:23 PM 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 Thursday at 10:24 PM Share Posted Thursday at 10:24 PM 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 Thursday at 11:03 PM Author Share Posted Thursday at 11:03 PM 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 Thursday at 11:12 PM Share Posted Thursday at 11:12 PM 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 Thursday at 11:22 PM Share Posted Thursday at 11:22 PM 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...
Popular Post Geoff Weeks Posted Thursday at 11:45 PM Popular Post Share Posted Thursday at 11:45 PM 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!). 3 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578452 Share on other sites More sharing options...
fjh Posted Thursday at 11:54 PM Share Posted Thursday at 11:54 PM 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 Thursday at 11:55 PM Share Posted Thursday at 11:55 PM 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 yesterday at 12:00 AM Share Posted yesterday at 12:00 AM 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.. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578461 Share on other sites More sharing options...
Geoff Weeks Posted yesterday at 12:32 AM Share Posted yesterday at 12:32 AM 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. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578465 Share on other sites More sharing options...
Nathanwhit1 Posted yesterday at 06:06 AM Author Share Posted yesterday at 06:06 AM Trust me I’m not liking this thread either 🤣🤣 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578472 Share on other sites More sharing options...
harrybarbon Posted 22 hours ago Share Posted 22 hours ago There were lots of B and R model Macks in Spain and possibly Portugal, with same motors. Is it worth a bit of Sherlock Holmes work to see if you can find anything there? Also maybe try contact Kevin Allmacks, he may have some suggestions becasue he has exported many trucks and parts. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578475 Share on other sites More sharing options...
mowerman Posted 18 hours ago Share Posted 18 hours ago Must’ve missed something I did not know the crank was shot. Yeah you’re in between a rock and a hard place. I agree with Geoff better have to fix what you got. If nothing else now you know what you have. Either way you’re going to be spending money and nothing is cheap operating expense. I used to own my own truck Slap the plastic and get what you need to do the job right and do not cut corners.good luck Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578489 Share on other sites More sharing options...
fjh Posted 14 hours ago Share Posted 14 hours ago 3 hours ago, mowerman said: Must’ve missed something I did not know the crank was shot. Yeah you’re in between a rock and a hard place. I agree with Geoff better have to fix what you got. If nothing else now you know what you have. Either way you’re going to be spending money and nothing is cheap operating expense. I used to own my own truck Slap the plastic and get what you need to do the job right and do not cut corners.good luck Check out the posted video bro! Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578503 Share on other sites More sharing options...
cruiseliner64 Posted 12 hours ago Share Posted 12 hours ago Nathan has had really bad luck with his Cruiseliner.I was talking to him during the week.He worked so hard to bring his truck back to life.Sometimes old iron can bite you hard.Clearly she suffered a loss of oil pressure but why?.... Paul Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578506 Share on other sites More sharing options...
Joey Mack Posted 11 hours ago Share Posted 11 hours ago Yes. That is true.. im dealing with one of my own. A small truck as it is, but each time i do something good for it. Something else pops up. So i have to collect myself, and start again. I wish him to have the patience and fortitude to keep up his good work.. 🍻 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578507 Share on other sites More sharing options...
Mark T Posted 7 hours ago Share Posted 7 hours ago Someone marked the throw for some reason. That may have been "doctored up" already. Like cleaned up with emery cloth and a new bearing from a previous failure ? You guys claim they're not common there, who knows what someone tried on it. No simple way out now 😕 😏 unless you have lots of patience and a micrometer, start polishing and get a undersized bearing. Compared to your other options, you don't have much to lose in this situation. Although it looks like it might be already too late for attempting that too. Just a thought....and not a good one, but 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578509 Share on other sites More sharing options...
cruiseliner64 Posted 2 hours ago Share Posted 2 hours ago 4 hours ago, Mark T said: Someone marked the throw for some reason. That may have been "doctored up" already. Like cleaned up with emery cloth and a new bearing from a previous failure ? You guys claim they're not common there, who knows what someone tried on it. No simple way out now 😕 😏 unless you have lots of patience and a micrometer, start polishing and get a undersized bearing. Compared to your other options, you don't have much to lose in this situation. Although it looks like it might be already too late for attempting that too. Just a thought....and not a good one, but You could be right about the engine being doctored up Mark.I feel bad for Nathen after all the work he put into it.Yes Macks are very very uncommon over here.Nathen's is the last Cruiseliner in the UK and ours is the only Cruiseliner to have ever been regestered in Ireland...I only know of 5 other Macks in Ireland...3 F models,1 R model and a gas powered 50s stake truck not sure of the model as Iv never seen it.Theres rumour of an MH lurking around the country but its unconfirmed as of now....I hope Nathen gets sorted soon...... Paul Quote Link to comment https://www.bigmacktrucks.com/topic/75732-engine-knocking/#findComment-578510 Share on other sites More sharing options...
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