Parent metal bearings.....
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Parent metal bearings.....
Man, I hope the moco got this one right. Not sure I like the idea of going without ball or roller bearings in the cam plate. To let the 'oil' be the only thing that keeps the metals from fusing seems to be a big risk. However, think of all the money they'll make when it comes time to REPAIR the units...can't just press the oldbearing out and press a new one in!! Cha Ching!!!!!!
Anyone else have an opinion on this......my degree was in bus mgt, not Metals 101.
Anyone else have an opinion on this......my degree was in bus mgt, not Metals 101.
Outstanding HDF Member
Joined: Mar 2007
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From: Alabama
RE: Parent metal bearings.....
"To let the 'oil' be the only thing that keeps the metals from fusing seems to be a big risk."
You mean like the cam bearings, main bearings, androd bearings in the bazillionautomotive engines on the road?
You mean like the cam bearings, main bearings, androd bearings in the bazillionautomotive engines on the road?
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Joined: Apr 2007
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From: Boston, MA
RE: Parent metal bearings.....
ORIGINAL: Lost1
"To let the 'oil' be the only thing that keeps the metals from fusing seems to be a big risk."
You mean like the cam bearings, main bearings, androd bearings in the bazillionautomotive engines on the road?
"To let the 'oil' be the only thing that keeps the metals from fusing seems to be a big risk."
You mean like the cam bearings, main bearings, androd bearings in the bazillionautomotive engines on the road?
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From: Bellville, Tx
RE: Parent metal bearings.....
Tried to rebuild a Briggs lawn tractor motor once. The main crank, and con rod bearings were parent metal, once they're gone the motor is gone. Interesting watching the rod and part of the case go flying across the lawn when the rod froze on the crank journal!
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From: Alabama
RE: Parent metal bearings.....
ORIGINAL: Merle
Automotive engines have copper bearings designed to wear and be replaced, the 'parent metal' bearings do not have a replaceable bearing, and the only thing between the cam plate and cam journal is a thin film of oil. Harley did away with the roller bearing design.
ORIGINAL: Lost1
"To let the 'oil' be the only thing that keeps the metals from fusing seems to be a big risk."
You mean like the cam bearings, main bearings, androd bearings in the bazillionautomotive engines on the road?
"To let the 'oil' be the only thing that keeps the metals from fusing seems to be a big risk."
You mean like the cam bearings, main bearings, androd bearings in the bazillionautomotive engines on the road?
Outstanding HDF Member
Joined: Jun 2007
Posts: 3,306
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From: Bellville, Tx
RE: Parent metal bearings.....
The advantage of roller, ball and needle bearings is that they are forgiving of running low on oil, they survive without damage for a while atleast. If you lose oil with parent metal brngs you only have seconds before major damage is done.
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From: Alabama
RE: Parent metal bearings.....
ORIGINAL: DeJavu
The advantage of roller, ball and needle bearings is that they are forgiving of running low on oil, they survive without damage for a while atleast. If you lose oil with parent metal brngs you only have seconds before major damage is done.
The advantage of roller, ball and needle bearings is that they are forgiving of running low on oil, they survive without damage for a while atleast. If you lose oil with parent metal brngs you only have seconds before major damage is done.
And I wouldn't have wanted to be around when the B&S let go... [:-]
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