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You may recall the very extended overdrive and clutch saga last year. Long
story short(ish).
OD was slipping in and out depending on oil temperature.
Correctly diagnosed pressure. Checked with gauge.
Attempted rebuild.going only so far as accumulator and related seals.
Stymied as could not get pump out. Turned out to have been "fixed" at some
stage with some form of "chemical metal" which was coming loose/apart.
Took it up to OD Spares who fixed it..new housing etcetc
Why not a new clutch I thought? Sensible while you're in the area looking at
a 30+ yr old item.
New clutch.no good. Noisy, wouldn't engage/disengage/play at all.
Gearbox out again.
Refit clutch. Presumed I'd made some beginner's mistake.
Refit gearbox.no good. Same
Can't recall whether I tried again. Lost count and enthusiasm by now.
Turned out that the new clutch kit was defective. (Thanks Mirek) (Genuine
B&B from AHSpares).
New one did work.
Saga over until yesterday.
Same sort of symptoms...
All's well for first 10 or so miles. Then the dreaded slippage(?) starts.
But it's not quite the same. Reminds me more of a slipping clutch. (But NO
smell)
Symptoms continue if it's in or out of OD.
Symptoms reduce at speed.
Yes, plenty of oil. Over the full mark. Looks very clean. Pretty sure it's
40wt non-detergent topped up with 30wt non-detergent. (Or vice-versa). Am
confident in state of the filter, magnets etc.
No, I have not pressure tested it yet and yes, I dread restarting the whole
bloody process all over again. I'm not sure I can face taking the box out
again once, let alone multiple times.
What I want and experience tells me I'm unlikely to get is a miracle cure!
One initial question...do OD relays either work or not work? ie, can the
relay hover between on and off which might lead to the OD coming in and out?
I think that could happen if the switch is off but the unit still hasn't got
the message to disengage from the bulkhead switch.
And a supplementary..how do I bench test the relay?
Simon
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<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">You may =
recall the very extended overdrive and clutch saga last =
year.</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"> <FONT FACE=3D"Times New =
Roman">Long story short(ish)…</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">OD was =
slipping in and out depending on oil temperature.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">Correctly diagnosed pressure. Checked with gau</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">ge.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">Attempted rebuild…going only so far as</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"> =
<FONT FACE=3D"Times New Roman">accumulator and related =
seals.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">Stymied</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman"> as could not get pump out. Turned out to have been =
“fixed” at some stage with some form of</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"><FONT FACE=3D"Times New Roman"> “chemical =
metal” which was coming loose/apart.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">Took it =
up to O</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">D</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman"> Spares who fi</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">xed it..new housing etcetc</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">Why not =
a new clutch I thought? Sensible while you’re in the area =
lookin</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">g at a 30+ yr old item.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">New =
clutch…no good. Noisy</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">, =
wouldn’t</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"> <FONT FACE=3D"Times New =
Roman">engage/disengage/play at all</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">Gearbox =
out again.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">Refit =
clutch. Presumed I’d made some beginner’s =
mistake.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">Re</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">fit gearbox…no good. Same</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">Can’t recall whether I tried again. Lost count and =
enthusiasm by now.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">Turned =
out that the new clu</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">tch kit was defective. (Thanks Mirek)</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"><FONT FACE=3D"Times New Roman"> (Genui</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">ne B&B from =
AHSpares).</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">New one =
did work.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">Saga =
over</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman"> until yesterday.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">Same =
sort of symptoms…..</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">All’s well for first 10 or so miles. Then the dreaded =
slippage(?) s</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">tarts. But it’s not quite the same. Reminds me more of a =
slipping clutch. (But NO smell)</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">Symptoms continue if it’s in or out of =
OD.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">Symptoms reduce at speed.</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">Yes, =
plenty of oil. Over the full mark. Looks very clean. Pretty sure =
it’s 40wt</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"> <FONT FACE=3D"Times New =
Roman">n</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">on-d</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">etergent topped up with 30wt non-detergent. (Or =
vice</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">-versa).</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"> <FONT FACE=3D"Times New =
Roman">Am confident in state of the filter, magnets =
etc.</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">No, I =
have not pressure tested it yet</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"><FONT FACE=3D"Times New Roman"> and yes, I dread =
restarting the whole bloody process all over again. I’m not sure I =
can face taking the box out</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"><FONT FACE=3D"Times New Roman"> again once, let alone =
multiple times.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">What I =
want and experience tells me I’m unlikely to get is a miracle =
cure</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">!</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">One =
ini</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">tial question…..do OD relays either work or not work? ie, =
can the relay hover between on and off</FONT></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"> =
<FONT FACE=3D"Times New Roman">which might lead to the OD coming in and =
out? I think that could happen if the switch is off but =
the</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman"> unit still hasn’t got the message to disengage from the =
bulkhead switch.</FONT></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New Roman">And a =
supplementary….how</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"> <FONT FACE=3D"Times New =
Roman">d</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">o I bench test</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"> <FONT FACE=3D"Times New =
Roman">the relay?</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN></P>
<P DIR=3DLTR><SPAN LANG=3D"en-gb"><FONT FACE=3D"Times New =
Roman">Simon</FONT></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN><SPAN =
LANG=3D"en-gb"></SPAN><SPAN LANG=3D"en-gb"></SPAN></P>
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