OF SOUTH AUSTRALIA INC |
Hunter Oil Leak |
OF SOUTH AUSTRALIA INC |
From: | Matthew Carroll [matthewc(at)health.usyd.edu.au] |
Sent: | Thursday, 29 May 2003 4:13 PM |
To: | hillman@can-inc.com |
Subject: | "Hillman - " Perpetual Oil Leak - Any solutions? |
This message forwarded by the Hillman List.
Hi,
We have a 1967 HC Hillman Hunter which has a perpetual oil leak from the bottom of the timing case. Our mechanic says that this is a common thing with Hillmans and that a proper fix would require removal of the case and re-engineering to fit a seal.
Is there an existing fix to this problem or does anyone know of a company that supplies a replacement cover designed to stop the leak?
Hope you can help.
Matthew
From: | The Becketts [thebecketts(at)optusnet.com.au] |
Sent: | Thursday, 29 May 2003 5:06 PM |
To: | Matthew Carroll; hillman@can-inc.com |
Subject: | Re: "Hillman - " Perpetual Oil Leak - Any solutions? |
This message forwarded by the Hillman List.
Matthew,
One of the members of the Hillman Owners Club of Aust sells modified timing case covers that have an oil seal fitted. The modified cover is sold complete with an alignment tool. Cost $110. Contact Les Compton on (02) 9826-7947. I have one on my Hunter.
He also reconditions track rods and vacuum advance units. I'm not sure if he still manufactures *much* more efficient heater valves. I have one of his on my Hunter. A significant improvement in heat into the car.
Ron Beckett
Emu Plains, Australia
1995 Range Rover HSE 4.6 Litre V8
1994 Ford Probe 2.5L V6
1971 Hillman Hunter Royal 660 – see mine at http://www.hillman.org.au/auscars.htm#hunter
1990 Honda CBR1000F Motor Bike – see mine at http://cbr1000.racing.gs/pictures/ron_threequarter.jpg
1995 Vespa PX200E Motor Scooter
Editor's note:
Before reading the next message, you will need to know what PCV is.
PCV = Positive Crankcase Ventilation.
For information about PCV and the PCV Valve, refer to:
http://www.aera.org/Techside/positivecrankcaseventilation.htm
http://www.hastingsfilter.com/engineering/tsb_94-2r.html
http://www.smogtips.com/pcv.html
From: | Terry Allen [hmag(at)ozemail.com.au] |
Sent: | Thursday, 29 May 2003 7:12 PM |
To: | Matthew Carroll |
Cc: | hillman@can-inc.com |
Subject: | Re: "Hillman - " Perpetual Oil Leak - Any solutions? |
This message forwarded by the Hillman List.
Hi again,
During our time working with Hillmans in our workshop that we
sold last year, we modified a few Hillman timing covers with Holden
Red motor 6 timing cover oil seals – however, in later times, I have
found that relieving the internal pressure of the engine by fitting a
PCV valve is actually quite a piece of cake & I've found that in all
but the most severe cases of wear, it pretty much cuts the leaks
outright, without any further mods.
The easy way to do it is this:
1 – drill a hole directly into the plenum of the inlet manifold
(unless there is already a vacuum outlet into the plenum for
something like a vacuum brake booster). The hole should be just big
enough to push a piece of 3/8" copper tube in with Loctite so you
have about an inch hanging out. The hole MUST be in the centre
plenum, NOT on any of the individual branches, to avoid rough idling.
2 – buy a PCV valve for a holden Red 6 motor, plus a rubber tappet
cover grommet for that valve to fit into the tappet cover on the
Holden – also, you'll need a length of PCV vacuum hose to run between
the tubing I just mentioned & the tappet, where you will be fitting
the valve – make sure there's enough so that when it's fitted, you
don't kink the hose – it's pretty hard stuff to kink the hose anyway,
but best prepared than sorry later.
3 – cut a hole in the tappet cover, ensuring that it is situated
between 2 pairs of rockers (best between cylinders 1 & 2 or 3 & 4 –
not between 2 & 3 because of oil spray), to allow a good fit of the
rubber grommet's outside diameter.
4 – fit the grommet to the cover – insert the valve into the grommet
& fit the hose to the valve & the tube – you won't need to clamp it,
because the vacuum keeps it held in place.
5 – start the engine – you may find you need to slow the idling just
a touch, but that's about it.
On an exceptionally badly smoking & oil leaking EK Holden
grey motor, we found that the oil leaks & the smoke had completely
stopped – we would otherwise have had to fail it for reregistration,
but our mods got it through for 4 years running until the rust
finally took it out.
On my father's Super Minx station wagon, I have this type of
setup & prior to having the PCV valve fitted, we had installed a
proper oil seal, but it still leaked – fitting the PCV valve stopped
it leaking dead.
Hope this is useful. If you're careful with your drilling,
you don't need to even remove the covers.
––
Bye for now, Terry Allen
From: | Jan Eyerman [jan.eyerman(at)usa.net] |
Sent: | Friday, 30 May 2003 11:32 AM |
To: | Matthew Carroll; hillman@can-inc.com |
Subject: | "Hillman - " Oil Leak |
This message forwarded by the Hillman List.
That problem is usually caused by excessive crankcase pressure. In a US spec car that would be caused by a clogged PCV valve. Try cleaning everything up and removing the oil filler car and replacing it with a piece of thin, pourouse cloth (stretched over the opening like a drum head and held in place with a hose clamp). If the problem goes away, find out why the system is blocked.
Jan