mrsmackpaul

From what I know and everyone knows thats two tenths of SFA the rails need to be fully seperated to clean the rust out fully to allow them to close up

Apparently they allmost always spring back into shape when this is done

So sadly I think you need to go all the way to get the result your chasing

I have never done this and am only passing on what else I have seen or been told

Get your self a 3/4 cordless rattle gun and get into it I guess

Paul

Hmmmmmm

Hope it all works out for you Joey

Paul

Second book is called "Fifty Shadeds of Tarmac" 

https://www.goodreads.com/book/show/27427571-fifty-shades-of-tarmac

Now me been me and been very different, I contacted the Andy MacLean direct and paid him so he got all the money and not the likes of Amazon etc 

Book turned up with a signed note inside

That is the book KS shared, "Me and my Mack"

You jokers should tell the chief cook and bottle washer and you might one for your chrissy stocking

Paul 

Well my 20 cents worth which is hardly worth 2 cents tells me if it was mine I would fill the bores with diesel and a little bit of petrol (gas for yanks) drop a rag in it and set the bores on fire until they burn out

This heats the bore and hopefully allows some possom piss or diesel or what ever to get down past the piston to the rings

I would do this a few times  until I can see some results

Then maybe try budging it a bit

Drop the sump and  see if you can shift any loose pistons up

Probably only the ones TDC, may need a jack on the floor with a block of wood on the rod

Dunno the more you can get moving before going crazy means the less strain on everything 

Anyhow thats what I would be doing

Nice and gentle is the way to save money

No swinging big sledge hammers belting the crap out of things

One slip and you can really make some giant steps in the wrong direction 

Paul

It's a good read, theres a secobd book from the same author 

30 day round trip in a new F model Mack

Field of Dreams 

Paul

2 hours ago, fjh said:

 A 285 is strictly Air to Air cooled charge air! I beleive !

I would agree with this

Paul

If you keep on just poking along like you are you might be surprised at just what can be achieved with out spending bugger all

Nice and steady, you may get away with no sleeves or pistons or maybe you will need just one or two 

Paul

We nerd KS to provide some info on this, dunno how big that back is at but huge is a fare guess

Looks like a Alsakan Freight lines truck, or that style of truck

Paul

12 hours ago, BOBWhite said:

Are these dry sleeve or wet sleeve motors? And if they do pop out why could't you just reseal it and pop them back in?  You can check the condition of the cylinders and check for cavitation if they're out. 

Also do Mack's have problems with dropping or sinking liners like Cats do? I'd imagine sleeve shims would not be easy to find for one of these. 

If someone is putting a lot of force on a crank to move a seized engine then pushing as sleeve out is well with in a possibility 

Then as Joey suggested these are a press fit or freeze and get back 

This is all gunna be a challenge with a pistion still stuck in a sleeve 

Anyway thats how I would deal with it 

Paul

Very good, please feel free to share any photos or memories

Paul 

1 hour ago, Hans Remmers said:

Looks like the box was run with bolts loose and then the inners broke off in the housing or pulled out

I reckon your right, this isnt as easy to notice if you dont know we're to look

The bolts towards the center of the camel back I doubt anyone can easily see from walking around doing a pre trip inspection 

So depending on how the conversation went with mechanic I can sort of understand how this could all unfold quite easily 

Gotta remember the mechanic can only goes on what is described to him and the driver can only describe as best as they can 

I dunno we need to try to not be to critical after the event

Bloody lucky everthing survived the ass puckering adventure at 65 MPH I reckon, I know I would of had white knuckles pulling the truck up 

Anyway I'm sure all involved are well on the way to getting things sorted now

C4Ed I'm judge you the truck or anything else just chucking some thoughts about

A lot of the people on here are really experienced in all facets of Macks so dont judge them to hard as they can only call it like they see it

Paul

Well this is good news, now that's gumna sound strange

But let me explain, you stopped forcing it before you went to far and broke something 

Mouse piss etc should be of concern, or at least it would be to me, must be some valves open either fully or partly 

How did these mice find their way into your motor ?

Paul

Bananas in the gear box, mate we have all the answers at "Dodgy bros auto repair"

This is the gear that is reported as the go to deglazer used car sales man instant rebuld kit in jar bombdiggitdoo kit

This will save you bucket loads on those over charging money hungry pescky mechanics 🤣🤣

Paul

That would of added some excitement to the day 

Gotta ask the question, did you get under and have a look when you first noticed it tracking out wide ?

Thinking it might of had a broken or missing bolt that could of easily been noticed 

And Mack Camel backs do track a fair bit 

Paul

I would be guessing you blokes are right about the rolled O ring

That been said the motor was probably rebuilt by a normal bloke like most of us and didn't even realise

I doubt commercial truck owner would of rebuilt this for commercial use

So we shouldn't be to hard on who ever rebuilt it, I'm thinking it was done with the best of intentions 

I wonder if the motor sitting  for so long got rust in a groove of the twisted O ring and the rust cut thru the O ring with heating and cooling 

If this had been im continual use I wonder if it would of happened at all ?

Paul

Silverfrost paint was common to find on head gaskets in Australia maybe 30 years ago or more but havent seen anyone use it for a real long time now

I have used copper spray, only if the head is in a really difficult spot like a COE truck without a tilt cab

Paul 

6 hours ago, mowerman said:

Paul why is your truck on a drop deck??????  Bob 

I was going to go to a truckshow, yes it shocks me as well, so put the truck on the trailer as it is easier for me to wash underneath it 

Well I washed away and it has rained and rained and rained some more

This is all heavy self mulching clay here and adter 1/4 inch of rain you.can move so the truck sits 

I have done (hopefully) sone improvements to the sir start as it is fed direct off the wet tank and all the dirtest air goes straight from the wet tank thru the valves into the airstart air tank

This causes anyoying leaks as crap gets under valves 

Anyway dont wanna corrupt Vlads thread here to much

Oh and another 20 mm (3/4 inch) over night, thats helped no end

Note I did shift Mrs Mack since the last photo

The bull bar is off as I was gunna polish it up shinier than my head bald head on a hot day, and do some repairs to it as well

Sorry Vlad 

Paul

Welcome and thankyou for your information 

Please feel free to share any knowledge on Macks from your part of the world 

Paul 

refractive lense

never heard of such things, as long as they work I guess and sounds like they do 

Paul

50 minutes ago, Craig N said:

 I think it’d be foolish on my part to not take the heads off at this point.  

 

I would agree, you can see there's issues, dont want to make it worse

Gaskets and the like are cheap

Paul 

Miss Molly the border collie is waiting for me to get my act together 

Paul