startinghandle
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Earlier I was talking to a guy who is full time mechanic and I asked him does he just renew rings in engine, his reply was never
Everyone has there own ideas what to doReplacing rings only - depends on whether your pistons and liners are still in specification - this is why the manual gives you service data - things like ring end gap etc. It also depends on whether you want to throw time and money at things - yes a mechanic will advise to replace everything - as its their livelihood and their risk and time if it doesn't work out.
If i'm doing the work and its my time and money - then i'm not going to replace a perfectly serviceable IH liner with an aftermarket one if i don't have a good reason to do this. If a set of rings brings it back into spec - then that's what its getting. This is old school mechanicking - i think we've lost a bit of this with today's replace or throwaway culture. I can see this from a machine shops perspective though.
Each to there own, but I would replace the liners for to reasons, firstly there will be a small step at top of liner from ring wear, secondly and far more important in my eyes, is the fact the liners will of corroded on the outside, due to being a wet liner, , and liners that have been in from new, will be 50+ years old and won't last forever,Replacing rings only - depends on whether your pistons and liners are still in specification - this is why the manual gives you service data - things like ring end gap etc. It also depends on whether you want to throw time and money at things - yes a mechanic will advise to replace everything - as its their livelihood and their risk and time if it doesn't work out.
If i'm doing the work and its my time and money - then i'm not going to replace a perfectly serviceable IH liner with an aftermarket one if i don't have a good reason to do this. If a set of rings brings it back into spec - then that's what its getting. This is old school mechanicking - i think we've lost a bit of this with today's replace or throwaway culture. I can see this from a machine shops perspective though.
Each to there own, but I would replace the liners for to reasons, firstly there will be a small step at top of liner from ring wear, secondly and far more important in my eyes, is the fact the liners will of corroded on the outside, due to being a wet liner, , and liners that have been in from new, will be 50+ years old and won't last forever,
It's like thin ice on a pond, looks good from the top, but I would not walk in it
I understand where you are coming from - do it once and do it right - i enjoy the tearing down, measuring and checking - here a couple of pics of a previous project.I understand what you are saying X344chap. With my current information It seems that an overhauled glow plug system should make my tractor serviceable for the winter. This will also allow me to double check the compression when warm to see how much higher it will be.
Once the gardening is done next spring, I can lay the tractor up for a while. Then the head can come off and we'll see what I have to work with. This is a job I'm only going to do once, so unless internal parts are nearly new in spec they will replaced. I am preparing for the worst case scenario so as to make sure there is enough money in the bank to do the job right now. I don't feel inclined to want to repair it again in 5 or 10 years. At 65 I'm getting tired of getting up every day and fixing stuff or bodging repairs to get a little more time out of it. I would like to be able to start enjoying some time off and relaxing without worrying about what needs fixing when I get home.
I get this - if the liner is stepped and out of spec then it needs replaced. If there's a corrosion pin hole then it needs replaced. If you are paying someone to do it and time is money then there is the argument about replacing older parts and doing it once - so you don't have to go back and do it again.
This could mean a significant amount of money replacing parts that may still be serviceable.
There was also a question on another thread about whether the aftermarket replacements were as good quality as the OEM parts. I've got no view on this but its something else to think about.
It took me a week to get a liner out once - hydraulic puller, jacks, heat and freezing it, running a weld down inside it. Ended up breaking it up bit by bit with a cold chisel. I was sure i was going to ruin the block. After that i decided that if it didnt absolutely have to come out then it wasnt coming out. Ive had cracked liners with frost damage but not seen one leaking coolant through corrosion. The liners are quite thick.any liners I have had out, all are rusty with pits from the water jacket,
I just put new liners in whatever,
I full.new kit is £200 why bother skimping, as for quality, I get from Engine fix uk, in over 20 kits, never a problem
I'm jealous. I was disappointed he wouldn't ship over here. I do believe I have acquired all the parts that I need to re-assemble my system. The new plugs are VW Jetta ones from the 1.9 engine, Bosch # 250201032. Do you think I would be safe to use the old straps or should I use wire? What gauge are you using?
I'm jealous. I was disappointed he wouldn't ship over here.
. I'm having a re-think on the plugs. Did a test fit today and the new plugs will only extend into the cylinder about half what the original plug did, 30mm versus 55mm. Right now I can exchange them but if they go in and won't do the job, I'll be stuck with them.
That looks and sounds like what we call 10 gauge wire. I was thinking I would need something heavy like that. I'm having a re-think on the plugs. Did a test fit today and the new plugs will only extend into the cylinder about half what the original plug did, 30mm versus 55mm. Right now I can exchange them but if they go in and won't do the job, I'll be stuck with them.