Mackman61 Posted June 19, 2012 Share Posted June 19, 2012 When Replacing Head Gasket Is There some kind of a sealent i can put on the fire rings I was tolled to oil them up also the head gaskets not shure if that is going to do anything or not thought some kind selent would be better Maybe luccus would be good Any Thoughts will be apprectiated still trying To Locate The Source Of the Fuel Getting Into My Antifreeze And my Oil the heads are at the machine shop getting magnufluxed checking for cracks Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/ Share on other sites More sharing options...
39 Baby Mack Posted June 19, 2012 Share Posted June 19, 2012 I wouldn't use anything on the fire rings or the head gaskets.just make sure everything is clean, threaded holes in block for head bolts should be cleaned.Make sure you oil threads on head bolts and under bolt heads and washers---torque to proper specs. in sequence and in three different steps to final torque.Ron 1 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-124620 Share on other sites More sharing options...
mowerman Posted June 20, 2012 Share Posted June 20, 2012 I wouldn't use anything on the fire rings or the head gaskets.just make sure everything is clean, threaded holes in block for head bolts should be cleaned.Make sure you oil threads on head bolts and under bolt heads and washers---torque to proper specs. in sequence and in three different steps to final torque.Ronexcellant,,,woulda told ya bout the same thing,,,good luck,,hope that solves your problem...bob Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-124621 Share on other sites More sharing options...
theakerstwo Posted June 20, 2012 Share Posted June 20, 2012 Like been stated us no sealer on gaskets.Some guys think sealers will hold better but no. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-124626 Share on other sites More sharing options...
Mackman61 Posted June 20, 2012 Author Share Posted June 20, 2012 OK sounds good havent got heads back yet from machine shop Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-124716 Share on other sites More sharing options...
Lukasswaziek Posted January 9, 2022 Share Posted January 9, 2022 So this is a related subject, but this week when taking off the heads on my e6 350 I buggered up one of the fire rings. Dosnt look terrible but it squashed it for about an eight of an inch. Im wondering if I put it back together like this will it just blow a headgasket right away or can I use it for awhile without having to worry about it. Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486746 Share on other sites More sharing options...
D-Day Posted January 9, 2022 Share Posted January 9, 2022 We always put on fresh gaskets, once the fire ring is crushed and used its compromised, I would think having a squashed spot in it probably would not last long Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486749 Share on other sites More sharing options...
Lukasswaziek Posted January 9, 2022 Share Posted January 9, 2022 I guess what I'm trying to say is that the raised part on the cylinder liner is damaged, not the gasket Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486752 Share on other sites More sharing options...
Vladislav Posted January 9, 2022 Share Posted January 9, 2022 Swapping a liner isn't a really terrible deal and they're affordable if we speak about E6 or a similar engine. That edge seals against the fire ring and if it has its portion away nobody could tell you for how long it would last. If you choose to swap the liner they may have different OD (where they fit into the block). Block can be rebored and oversized liner is used. So better to pull out the old liner first to check its OD before purchasing a new part. 2 Quote Никогда не бывает слишком много грузовиков! leversole 11.2012 Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486754 Share on other sites More sharing options...
Mark T Posted January 9, 2022 Share Posted January 9, 2022 Why is the head off it and what damaged the liner ? Not much of a chance of it ever sealing as it should with the liner damaged, no matter what fire ring or gasket.....and why is the liner damaged ????? Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486755 Share on other sites More sharing options...
Joey Mack Posted January 9, 2022 Share Posted January 9, 2022 I recently pulled liners from an ENDT E-6. I didnt have a hydraulic puller... I welded a spiral of weld on the inside of the liner, then used my Kent Moore liner puller. it was still a chore and I had to sharpen the dogs on my puller a few times to get a good bite. Then i had a machine shop press the liners in the block for me. My enigine was out of the truck, and I was re-building it.. for you to do 1 liner in chassis may be a lot of work, depending on tooling. Dry icing the new liner to get it in is a method you can use.. I never got real good at it. I also rebuilt an E-7, 2 years ago that was putting pressure in the cooling system. when I pulled the heads, #6 liner was chipped, just like you described your's is.. so far all is good... I hope I helped you with the approach to this repair... jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486756 Share on other sites More sharing options...
Lukasswaziek Posted January 9, 2022 Share Posted January 9, 2022 Engine was pushing a small amount of water between head and block, took the heads off to replace the headgaskets, while also checking the liners. All liners seemed to be fine except for one I think I dragged the head over while taking it off. Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486757 Share on other sites More sharing options...
Lukasswaziek Posted January 9, 2022 Share Posted January 9, 2022 I don't use the truck a whole lot right now, and think I'm just gonna put it back together and see how long it lasts. I knew it was detrimental but was more curious to see who has come across that and just ran it. I'll see what happens and keep everyone updated Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486759 Share on other sites More sharing options...
Joey Mack Posted January 9, 2022 Share Posted January 9, 2022 gotch'a.. good luck ... the E-7 that I re-built because of age and the chipped liner, ran just fine and with a radiator cap that have the pressure relief lever on it and letting it breath when needed, and some coolant now and then.. some summer days were a bit hot for it...this was before I went through it..jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486760 Share on other sites More sharing options...
Mark T Posted January 9, 2022 Share Posted January 9, 2022 Sounds like what would be called a blown head gasket from combustion passing by it . Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486761 Share on other sites More sharing options...
Lukasswaziek Posted January 9, 2022 Share Posted January 9, 2022 Mark T possibly a little compression passing by, but where it is damaged is in a completely different area. Where the headgasket was leaking the liner looked surprisingly fine. Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486763 Share on other sites More sharing options...
JoeH Posted January 9, 2022 Share Posted January 9, 2022 Cylinder liner kits aren't too bad to do. You already have the head off, that's the hardest part. Drain the oil, drop the oil pan, pull the connecting rod off the crank and send the piston and rod out the top. A vertical weld up the old piston liner is all you need to loosen it. Forget how we drive the new liner in, probably a block of wood and a hammer... Might be a brass punch involved at the end. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486774 Share on other sites More sharing options...
mowerman Posted January 9, 2022 Share Posted January 9, 2022 I was wondering if anybody noticed how old this post is ha ha last time I punched one in the hammer and a block of wood they pretty much go right in but it’s been 36 years for me… Bob 1 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486777 Share on other sites More sharing options...
Joey Mack Posted January 9, 2022 Share Posted January 9, 2022 so dry liners can be driven in with a block of wood??? I thought the .002" crush on the liner during install required either dry ice or a hydraulic press? just asking... jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486779 Share on other sites More sharing options...
Onyx610 Posted January 9, 2022 Share Posted January 9, 2022 Dry liner vs wet liner install/removal are completely different… Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486781 Share on other sites More sharing options...
Popular Post theakerstwo Posted January 9, 2022 Popular Post Share Posted January 9, 2022 (edited) I have installed alot of dry liners and i have used dry ice and also liquid propane but i always understood they were .0005 press fit and have never had a problem getting them in.I always hone the block to clean up and use a tool made from flat plate to drive in.Back in the 60s we had troublem with liners scoring and some one found that they were installing at .002 press fit.Our forman told us to use the .0005 and i did not see any more problems after that.The only reason for a press fit is for heat transfere cause they sure cant get out. Edited January 9, 2022 by theakerstwo 5 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486783 Share on other sites More sharing options...
JoeH Posted January 10, 2022 Share Posted January 10, 2022 Last one we did was a dry liner in our 1979 endt676 12 years ago. Dropped a valve seat so it got one piston/liner kit and a rebuilt cylinder head. I remember my dad welding the inside bore of the old liner to get it out, and I don't remember doing anything special to drive the new one in. Probably scuff sanded the block bore and drove the new liner in with a wheel seal driver and/or a block of wood. We aren't technical enough to measure bore interference. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486788 Share on other sites More sharing options...
Popular Post theakerstwo Posted January 10, 2022 Popular Post Share Posted January 10, 2022 I have run a weld bead up and down maybe two or three of them to shrink the liner.And dont forget to cover the crank. 2 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486789 Share on other sites More sharing options...
fjh Posted January 10, 2022 Share Posted January 10, 2022 (edited) On 1/9/2022 at 4:42 PM, theakerstwo said: I have run a weld bead up and down maybe two or three of them to shrink the liner.And dont forget to cover the crank. Also bare in mind there are available oversized liners you need to watch for this When ordering parts ! the liners are etched with The part number the last digits ending P5 p10 ect being the oversized number! The liner should be a slide fit for the first 2/3 of the way down then a semi aggressive fit last 1/3!you may need a wooden block for the last little bit to seat them! Edited January 11, 2022 by fjh 2 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486819 Share on other sites More sharing options...
63BMack Posted January 11, 2022 Share Posted January 11, 2022 The ones I did I ran a hone in the block to clean up then I put them in the freezer overnight then dipped the bottom 2" of the liner in diesel fuel and they went in 2/3s then a block of wood and a hammer the rest of the way 1 Quote Link to comment https://www.bigmacktrucks.com/topic/25744-fire-ring-on-head-gaskets/#findComment-486854 Share on other sites More sharing options...
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