Post Number: 3596
|Posted on Friday, 21 February, 2020 - 18:58: |
Vladimir has started to "bite the bullet" on this project:
" I attempted to replicate Bill Coburn's caper of using a fire blanket and a heating source, in my case an old electric blanket and an LPG gas burner.
I abandoned that experiment by way of instinct.
Presently I am converting a large stainless steel household fridge into a dedicated Camargue engine block oven.
I have chosen a freeze gas in a pressure can as a helper instead of ice for reasons I will explain later.
The photos of the process are truly bizarre and hideous.
I am 100 percent certain this experiment will succeed without cracking the webbing of the cylinder block.
Stay tuned but be prepared for laughter induced cardiac arrest.
I am indeed taking revenge for each and every refrigerator that ever messed with me internationally and I am enjoying every nasty second of destruction and torture I am inflicting upon this fridge's carcass."
Post Number: 117
|Posted on Friday, 21 February, 2020 - 19:09: |
I put mine in a galvanised water tank and heated the water to boiling point and pulled the liners with little problem.
The water helps to keep the "crud" in the block soft.
Post Number: 579
|Posted on Friday, 21 February, 2020 - 21:18: |
Great idea Trevor, the simplest solutions are often the best.
Post Number: 159
|Posted on Saturday, 22 February, 2020 - 07:31: |
On the Shadow I we had to machine the liners out.
The DPO obviously had a water leak and just kept adding some sort of goo till the leak stopped
Three cylinders had nearly all of the void between the linner & the block solid with this trash which was very strongly bonded to both liner & block
Final stage was abrasive blasting to get as much as possible out of the block.
Had to patch up one O ring retianer
Vladimir Ivanovich Kirillov
Post Number: 1681
|Posted on Saturday, 22 February, 2020 - 18:47: |
Trevors - The boiling the block method definitely has its merits and I do hope the machining out method never has to happen.
I was going to attempt the boiling block method first but was told by XXXXX another custodian that it was." a total waste of time."
Many times in the trade I have been told that there is only one way to skin a cat and many times I have observed many different cat skinning methods succeeding.
Obviously, given that I have access to enough firewood to burn Moscow to the ground perpetually the boiling block method would have been cheaper. With the fridge oven method I have some control via the propane valve control knob over the heat level plus I can far exceed 100C if that is necessary.
A totally different contributor suggested removal of all the original fridge insulation and replacement with fibreglass.
I came up with Mount Coolon clay as a preference over fibreglass as I have worked with fibreglass before and don't like being itchy etc.
Removal of fridge insulation necessitates a certain dedication of madness mixed with a tenacious but vandalistic mentality.
Thus ego and indeed I hope to not only remove the cylinder liners as per the manual ie " use oven " but additionally have amongst my wide range of specialised Rolls Royce tools a dedicated Camargue engine block cylinder liner removal oven which would make an nice talking point and perhaps even double as a pizza/fruit cake oven...
Time will tell. (50 percent of insulation removed so far)
(Message approved by david_gore)
Yet to post message
Post Number: 1
|Posted on Sunday, 01 March, 2020 - 09:12: |
Hi Just removed my liners- Soaked block in vinegar and water solution for one week- Then heated the block with a LPG gas torch and removed all liners. Big job but no issues.
Post Number: 2191
|Posted on Sunday, 01 March, 2020 - 13:33: |
Welcome to the group and congratulations in succeeding in removing the liners.
Could you post some more details on how you carried out the job. Did you use an insulating cabinet of any sort? Did you just heat the block directly with the LPG torch by playing the flame repeatedly along the length of it. Did you use an infra-red thermometer and if so to what temperature. Any details would be interesting and useful.
richard george yeaman
Post Number: 1143
|Posted on Monday, 02 March, 2020 - 09:27: |
Welcome, Could you fill us in on the story leading up to this action that you undertook,
Post Number: 2
|Posted on Monday, 02 March, 2020 - 17:33: |
I soaked in the vinegar solution to break down as much of the deposits behind the liners to assist in the removal. I simply heated the block focusing on the area around the liner to be removed. The block naturally heats up quite evenly so you are not at risk of distorting. I used an infra red thermometer and started to pull the liner at 150 degrees - I manufactured a copy of the rolls liner tool. I used a rattle gun on the puller nut and the liners all came out with no damage to block.