Cylinder Liner Removal.pub
Contents
1. Removing Cylinder Liners Mark McMillan Mark McMillan Master Mechanic and owner of Meadow Springs Guest Ranch Meadow Springs com prepared this photographic record and describing of the removal of the cylinder liners while rebuilding the Perkins diesel engine on my Massey Ferguson 135 Welding a bead around the inside of the liner can shrink the liner to make it easier to pull Extreme caution must be used however as the liner are very thin and you must not burn through Disclaimer This pictorial describes the removal of cylinder liners on one tractor only and no claim is made as to the suitability of the use of this equipment or these techniques in any other situations Pulling Frame Even after the welding the liners can be very hard to pull A minimum of 5 8 reddi rod should be used with a well built pulling frame It must be posi tioned on the block carefully so the pulling point is centered and so that it won t slip off It may be necessary after putting pressure on the puller to tap the bottom of the puller with a hammer and long punch from under neath careful don t hit the crank shaft in doing this inframe Puller Bottom Plate The puller must use an exact sized bottom plate It must be stepped so that the top of the plate fits inside the liner with no play The lower section must be slightly smaller then the OD of the liner The step must be ma chined precisely to give an even pull Puller Bo2. e service manual says liners are 0425 thick block bore between 3 6875 and 3 6885 our puller say is outside OD 3 685 inside OD 3 588
3. ttom Plate Fitted in Liner The bottom plate must be fitted squarely into the liner bottom before pressure is applied Pulling Liner Vice grips should be placed on the reddi rod to stop it from turning It could spin and not pull or it could spin and screw down into the crank shaft if doing the rebuild in frame Pulling Liner Nearly Out Here the liner is about half way out watch for the vice grips and or liner top to contact the puller frame Pulling Liner Last Step a i m k i a a n f had When the liner contacts the puller frame it should be broken off they break very easily with a tap of a hammer so that you can continue pull ing A tall pulling frame could be used but the taller it is the stronger it has to be and the longer the reddi rod found that a shorter puller and two pulling stages works best Disclaimer This pictorial describes the removal of cylinder liners on one tractor only and no claim is made as to the suitability of the use of this equipment or these techniques in any other situations Bottom Puller Specifications The following measurements are what we used but should be confirmed the best was to make a puller bottom or have it made at a machine shop is by using the actual of the new liners for measurements The most impor tant measurement is the outside OD it must be as close as possible to the block bore size it should be a tight fit Th
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