MORE ABOUT CRANK OIL-SEAL
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30 Oct 2012 13:03 #1
by dandjcr
David and Janet Ribbans - Oka 148
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wilfriedwesslau
Member
Posts: 4
Have now a little more experience to share with others.
My findings on oil-leaks at flywheel side of Perkins 110 is as follows: The little screw at bottom of bellhousing opens a bore that comes from a small pocket under the engine oil-seal. It seems to me that the designers wanted small leakage not to mess with flywheel/clutch. So- if you leave the screw in, in case of a severe leakage oil will not drip out but do more damage inside. No mention of this in the manual!!!
Replacement of seal: quite a job. But you do not have to remove the transfer case, contrary to the statement in the manual;). After removal of the jack-shaft there is enough clearance to shift the gearbox back together with the bellhousing. The seal i have used supplied by Perkins comes with a housing and an installation-guide ( to protect the seal from damage duting installation) It is slightly offset on the crank to run on virgin face and not in the worn groove.
Quite tricky to work the bolts that fasten the gearbox mountings to the chassis. Left side is easy, but the right side can better be tackled by using plenty of extensions to the socket to work over the gearbox from the opposite side.
The hydraulic oil tank must be moved away from the engine to clear the bolts, but must not be disconnected.
The rest is plain sailing bolts and nuts but you need bendable fingers.
NOW I KNOW WHY MODERN TRUCKS HAVE TILT-CABS!!!!
Wilfried from South Africa
October 6, 2012 at 10:51 PM
wilfriedwesslau
Member
Posts: 4
Have now a little more experience to share with others.
My findings on oil-leaks at flywheel side of Perkins 110 is as follows: The little screw at bottom of bellhousing opens a bore that comes from a small pocket under the engine oil-seal. It seems to me that the designers wanted small leakage not to mess with flywheel/clutch. So- if you leave the screw in, in case of a severe leakage oil will not drip out but do more damage inside. No mention of this in the manual!!!
Replacement of seal: quite a job. But you do not have to remove the transfer case, contrary to the statement in the manual;). After removal of the jack-shaft there is enough clearance to shift the gearbox back together with the bellhousing. The seal i have used supplied by Perkins comes with a housing and an installation-guide ( to protect the seal from damage duting installation) It is slightly offset on the crank to run on virgin face and not in the worn groove.
Quite tricky to work the bolts that fasten the gearbox mountings to the chassis. Left side is easy, but the right side can better be tackled by using plenty of extensions to the socket to work over the gearbox from the opposite side.
The hydraulic oil tank must be moved away from the engine to clear the bolts, but must not be disconnected.
The rest is plain sailing bolts and nuts but you need bendable fingers.
NOW I KNOW WHY MODERN TRUCKS HAVE TILT-CABS!!!!
Wilfried from South Africa
October 6, 2012 at 10:51 PM
David and Janet Ribbans - Oka 148
Oka148 profile here.
Visit our technical and travel blogs: here.
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