Jalpa reference page to assist in Miura maintenance
I needed the gas struts to lift Jalpa engine lid 007060018 and Jalpa
trunk lid 007029005.
Available from Lamborghini for $99 and $66, but looked like a local
In my quest (and it was a
*quest*) to look for a replacement front wheel bearing for my 84
over the last couple weeks, and after dealing with some suggestions,
wanted to put this out there for others to review and offer
The background info: the bearing is the now almost seeming
to find SKF 615645 A also used on a couple other Lamborghini's and
Fiat Dino – not that it makes much difference as those cars are also
all as rare as the proverbial hen's teeth.
Looking (lightly) at the specifications, it looks like the wheel
bearing is of the following size: 83mm Od x 45mm Id x 44mm wide.
a little more research with SKF (and the people there were
by the way), I found that the number is actually a SKF Italy number,
and not one that is used by the SKF America automotive division. It
will frequently be referenced as a RIV 615645 A – as I understand
RIV is a supplier of or for SKF. Not that it really makes much
difference, as they haven't been making the bearing much lately
The SKF rep mentioned that there were 6 brought into the US last
and unknown just where those came from. So.. that leaves us
trying to find another. As SFK usually doesn't have a cross
between their automotive and industrial divisions, there is some
footwork involved to find what we need.
Then as luck would have it – sort of anyway- I have friend who was
servicing his car – a `vintage' 1993 Mazda 929 and the rear wheel
bearings. Now, this bearing just happens to be – 83mm x 45mm x 45mm.
Himm you might be thinking, well close but no cigar, ehh? As it
out – the front hub in my car just happens to have 1.25mm worth of
spacers to take up the slack between the tru-arc retaining ring and
bearing's end shell itself. The end result? It fits, even with using
one of the original shims to return the clearance back. The bearing
load capacities appear to be similar, as far as the SKF rep could
determine, although data on the 615645 bearing was scarce.
Now what I don't know and beware is: I imagine that the hubs were
machined independently and probably in a non-automated fashion, so
other hubs may not have the machined depth needed for this
–I could see where the additional 1 mm could make a difference in
Also- anybody have further design info on the 615645? Loadings /
specs etc? The *other* bearing is SKF part number GRW234 - about $90
most local parts suppliers. I put some photos up under `Possible
Wheel Bearing'. I didn't find anything posted on this bearing – has
anyone run across this before?
"Jason Franikowski" <firstname.lastname@example.org>
From what I found on the SKF
Automotive division website:
Select the 'Buyers Guide Tab' and enter the number: GRW234
The description is:
ITEM : GRW234
WEIGHT : 1.50
WIDTH : 1.77
OD : 3.27
ID : 1.77
TYPE : C9
CONST : DBALLG1
broken out a little more on a different part of their site:
Product Features:Double Row Ball
Angular Contact For Load Distribution
Ground Surfaces For Longer Life
Type:Double Row Ball
Metric hasn't quite hit them yet in their original description...
it is a metric bearing. The bearing is made by Koyo Ball &
Bearings packaged in a SKF box.
It is also known as a DAC4583CS62 - I believe this is the number
used mostly by the actual bearing mfg.
You can bring it up under NAPA online:
and I imagine others (no particular vendor implied ).
Mind for changing it out in the Jalpa you still need a 54mm socket
a *lot* of torque. (so was my experience!) but hopefully this helps
with getting the parts!