To who it may interest
AFTER ADVISE FROM VARIOUS LOCAL AMATEURS I MANAGED TO PROGRESS REPAIRS WITHOUT HAVING TO TAKE THE COVER OFF .THE HOUSING FOR THE FILTER IS M20 TREAD WITH 1.5MM PITCH WHICH IS MACHINED IN COVER BODY. THE COST OF REPAIRS ARE LIKELY TO MOUNT TO ABOUT $1500 ( INCLUDING LABOUR AND PARTS)IF I HAD TO REPLACE THE COVER FOR A NEW ONE . HOWEVER I HAVE SEEN MANY LEAKING HYDRAULICS ONCE THEY ARE OPENED UP FOR REPAIRS AND REFITTED. HENCE I THOUGHT OF TRYING THIS AND IT WORKED PERFECTLY.
THERE 1S AROUND 24MM OF FAT IN THE BODY WHERE THE OLD FILTER HOUSING WAS. THE WIDTH OF THE HOLE ON THE HOUSING TO THE FILTER IS APPROX 10.5MM .I BOUGHT A BOLT ( STAINLESS STEEL) WITH A M20 THREAD ,DRILLED A 10.5 MM HOLE , STEPPED THE TREAD DOWN TO 18MM ON THE END THAT WAS LATER TO BE THREADED INTO THE BODY. WIDENED THE HOLE IN THE BODY OF THE COVER FROM 10.5 TO 16.5 WITH A 16.5 MM BIT FITTED TO A 18V DRILL ( FULL CHARGE). WITH A M18 BY 1.5 PITCH TAP , THREADED THE HOLE IN THE BODY FOR 12MM (LENGTH). HAD TO BUY A 15MM MAGNETIC LEVEL TO ENSURE THAT DRILLING WAS STRAIGHT, BOTH VERTICLE AND HOLIZONTAL....I GATHERED A LOT OF COURAGE TO DO THIS AND THE RISK PAID OFF. BEFORE TIGHTENING THE THREADED PORTION OF THE BOLT INTO THE BODY , I HAD CUT AROUND 80% OF THE BOLT HEAD SO THAT ONCE I HAD TIGHTENED THE BOLT IN PLACE, THE HEAD WAS EASILY CUT WITH A HACKSAW BLADE AND SMOOTHED WITH SAND PAPER.
THE JOB IS VERY FINE AND DELICATE AND USE OF VERNIER CALIPER FOR MEASUREMENT IS PARAMOUNT.
IN TOTAL INCLUDING OIL AND NEW FILTER , THE JOB COST ME $200 AND A FEW PARTIAL SLEEPLESS NIGHTS.
CHANDRA