Posted by tim
on 4/28/2009, 7:35 am, in reply to "Re: Rear end play"
205.188.116.18
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:
:
: --Previous Message--
: Here's a thought; do a oil sample and
: check the content ie. oil for wear
: & shavings. I thought I had allot
: of end-play along with the
: "howling" noise after buying
: it and driving home. Turned out, by
: sampling first and finding little there
: to sample from the P.O., what I really
: needed was some serious oil added!
: 'Went to a local Checker, bought a
: Castrol Hypoid heavy crank case weight
: [that I can't seem to find as I look in
: the garage], and topped it off/flushed
: it out with. Back then, the next drive,
: all quiet. Might be worth a simple try.
:
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: If you don't change the pinion depth,
: you
: can change the bearings without any
: real problems, although if it is a
: later car, with a crush spacer to set
: the pinion preload, it can be a bit of
: a PITA.
: I would inspect the R&P closely &
: check the mesh pattern before teardown.
: Over time the bearings wear slightly,
: and the preload is lost, things start
: wiggling around a bit, and the mesh
: pattern will change slightly.
: If your existing pattern is way off, it
: might be difficult to get an ideal
: "new" pattern.
: If it has a decent pattern, it can most
: likely be rebuilt, but it can still eat
: up a lot of time doing a proper
: overhaul. Gears are not too tolerant of
: poor setup. They will work, but run hot
: & make noise, and obviously not
: last as long as they should ...
:
: Glen
:
:
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:
:
: --Previous Message--
: If there is excessive play (backlash)
: between the R&P gears, it will be
: making noise (howling) & the gears
: will be trashed.
: Usually the play is in the differential
: unit. It is a result of wear to the
: axle gears/thrust washers, spyder
: gears/thrust washers, shaft, and
: sometimes worn thrust faces in the
: carrier, that result in "lost
: motion" in the power transmission
: between the carrier and the drive
: axles.
: The stub axle splines wear as well.
: If the R&P gears are OK, it's not too
: bad of a job but if it needs a major
: rebuild it can be a real PITA to set up
: correctly.
: You won't know the condition until you
: remove it & do a detailed
: inspection.
: HTH
: Glen
:
: --Previous Message--
: Just wondering how much play in a
: spitfire rear end is too much? I jacked
: the car up and there is play in the
: rear end, that seems more than it
: should be. Also, are the rear ends hard
: to rebuild? I have never done one, but
: have built lots of engines. I certainly
: don't want to spend 1K on a rebuit.
: Thanks in advance.
:
:
:
: Glen, Thanks, So if the R&P is OK, then
: what I think your saying is that the
: bearings etc. can be changed without
: disturbing the R&P? Or am I wrong?
:
:
:
:
:
: What I am concerned with is with the 74
: spitfire jacked up in the rear, you can
: start to spin the tire/wheel about 2
: inches before it starts to turn the
: drive shaft. Does this make sense?
: Isn't this too much?
:
Is this rear end play too much? Anyone?
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