Lotus Elan

heater valves

PostPost by: Will Grainger » Fri Mar 04, 2005 4:58 am

Has anyone successfully found an alternative to the standard heater
valve? I've been through several and they all require as much
pressure as my clutch to operate...therefore...they don't operate. I
have to lift the hood (bonnet) every time I need to turn off the heat.

I've been trying to fit an aftermarket unit, but it mounts inline
(very little room in there), and the Elan uses 1/2 inch hoses (most
aftermarket units I've found are 5/8 or greater).

Would there be anything wrong with putting a valve on the return side
instead? (below the carbs). I was thinking maybe an electric unit -
lots of room down there.

Anyone have any thoughts/ideas/suggestions?

Thanks.

Will Grainger
45/9693
Will Grainger
 

PostPost by: poiuyt » Fri Mar 04, 2005 6:19 am

Are you sure you don't have a binding cable?

Steve B.

--- In ***@***.***, Will Grainger <[email protected]>
wrote:
Has anyone successfully found an alternative to the standard
heater

valve? I've been through several and they all require as much
pressure as my clutch to operate...therefore...they don't operate.
I

have to lift the hood (bonnet) every time I need to turn off the
heat.


I've been trying to fit an aftermarket unit, but it mounts inline
(very little room in there), and the Elan uses 1/2 inch hoses
(most

aftermarket units I've found are 5/8 or greater).

Would there be anything wrong with putting a valve on the return
side

instead? (below the carbs). I was thinking maybe an electric unit -

lots of room down there.

Anyone have any thoughts/ideas/suggestions?

Thanks.

Will Grainger
45/9693
Steve B.<br>1969 Elan S4
poiuyt
Third Gear
Third Gear
 
Posts: 346
Joined: 23 Feb 2004

PostPost by: "Fred Talmadge" » Fri Mar 04, 2005 2:04 pm

Might want to try and put an elbow on the thermostat housing and then
find a valve that can be installed inline with the hose. I looked at a
few options and ended up with the early AN Sprite valve, it's manual but
that works for me here in Texas.

Fred '65 S2

-----Original Message-----
From: Will Grainger [mailto:***@***.***
Sent: Thursday, March 03, 2005 10:58 PM
To: ***@***.***
Subject: [LotusElan.net] heater valves

Has anyone successfully found an alternative to the standard heater
valve? I've been through several and they all require as much
"Fred Talmadge"
 

PostPost by: Bob Bulfin » Fri Mar 04, 2005 3:16 pm

Here is what I was told someone used as a replacement. I checked NAPA
online and could not find the part #, so I don't know if it would work
or not.

Try Napa part# C3UZ-18494-B This is a inline ford pickup heater shutoff
valve made of plastic.

Will Grainger wrote:
I've been trying to fit an aftermarket unit, but it mounts inline
(very little room in there), and the Elan uses 1/2 inch hoses (most
aftermarket units I've found are 5/8 or greater).



Bob Bulfin
69 Elan S4
Bob Bulfin
 

PostPost by: elansprint71 » Fri Mar 04, 2005 4:18 pm

Will,
I completely got rid of that awful looking object from the engine bay and replaced it with a brass elbow fitting, I then fitted a 15mm ball valve in the pipe above the passenger footwell (I can reach over and move this from the driver's seat, if your car is LHD, even better).
If you are interested I can post some shots in the photos section.

Cheers,
Pete.
----- Original Message -----
From: Will Grainger
To: ***@***.***
Sent: Friday, March 04, 2005 4:57 AM
Subject: [LotusElan.net] heater valves


Has anyone successfully found an alternative to the standard heater
valve? I've been through several and they all require as much
pressure as my clutch to operate...therefore...they don't operate. I
have to lift the hood (bonnet) every time I need to turn off the heat.

I've been trying to fit an aftermarket unit, but it mounts inline
(very little room in there), and the Elan uses 1/2 inch hoses (most
aftermarket units I've found are 5/8 or greater).

Would there be anything wrong with putting a valve on the return side
instead? (below the carbs). I was thinking maybe an electric unit -
lots of room down there.

Anyone have any thoughts/ideas/suggestions?

Thanks.

Will Grainger
45/9693





To search the mailing list archives:
http://www.escribe.com/automotive/europ ... index.html
elansprint71
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 4092
Joined: 16 Sep 2003
Location: Cheshire, UK.

PostPost by: poiuyt » Fri Mar 04, 2005 4:51 pm

Pete,

I'd like to see this modification, if you don't mind.

Thanks,

SteveB
69 Elan S4
78 FIAT X1/9
96 VW GTI-VR6




--- In ***@***.***, "elansprint71" <[email protected]>
wrote:
Will,
I completely got rid of that awful looking object from the engine
bay and replaced it with a brass elbow fitting, I then fitted a 15mm

ball valve in the pipe above the passenger footwell (I can reach over
and move this from the driver's seat, if your car is LHD, even
better).
If you are interested I can post some shots in the photos section.

Cheers,
Pete.
----- Original Message -----
From: Will Grainger
To: ***@***.***
Sent: Friday, March 04, 2005 4:57 AM
Subject: [LotusElan.net] heater valves


Has anyone successfully found an alternative to the standard
heater

valve? I've been through several and they all require as much
pressure as my clutch to operate...therefore...they don't
operate. I

have to lift the hood (bonnet) every time I need to turn off the
heat.


I've been trying to fit an aftermarket unit, but it mounts inline
(very little room in there), and the Elan uses 1/2 inch hoses
(most

aftermarket units I've found are 5/8 or greater).

Would there be anything wrong with putting a valve on the return
side

instead? (below the carbs). I was thinking maybe an electric
unit -

lots of room down there.

Anyone have any thoughts/ideas/suggestions?

Thanks.

Will Grainger
45/9693





To search the mailing list archives:

http://www.escribe.com/automotive/europ ... index.html




Steve B.<br>1969 Elan S4
poiuyt
Third Gear
Third Gear
 
Posts: 346
Joined: 23 Feb 2004

PostPost by: elansprint71 » Fri Mar 04, 2005 9:45 pm

I have uploaded a picture of my invisible heater valve set-up to the files section, follow the separate "new file" notification or this link:
http://f5.grp.yahoofs.com/v1/UMwoQqg1vq ... g%201a.JPG

This link:
http://www.screwfix.com/app/sfd/cat/pro ... 5&ts=71780
shows the valve that I used.
It is important to get a full flow ball valve, most only have a bore size of about 6mm, this one is 15mm. You need to fit a short length of 15mm copper tube into each end of the valve and then the hose slides on to the copper tube, fastened with a worm-drive (Jubilee) clip. I removed the blue plastic sleeve from the valve lever, shortened it and re-fitted a shortened plastic sleeve.
As fitted to my car, only the lever is visible if you climb down into the footwell, the valve itself is behind the trim, if you really, really want me to try to photograph this, ask very nicely, as I have a bad back!
No doubt the picture I have posted will spark off questions about the rest of my cooling/heating system- fire away!

Cheers,
Pete
elansprint71
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 4092
Joined: 16 Sep 2003
Location: Cheshire, UK.

PostPost by: Will Grainger » Sat Mar 05, 2005 3:26 am

Thanks everyone for the heater valve tips. The inline valve I've been
playing with is similar to the obsolete (1963) C3UZ-18494-B Ford
part. It has possibilities but it is quite long and it has 5/8" inlet
and outlet. Adapters can be used of course, but that requires even
more length. The under dash method sounds effective.

Will Grainger
1970 S4



Here is what I was told someone used as a replacement. I checked
NAPA online and could not find the part #, so I don't know if it
would work or not.

Try Napa part# C3UZ-18494-B This is a inline ford pickup heater
shutoff valve made of plastic.

Will Grainger wrote:
>I've been trying to fit an aftermarket unit, but it mounts inline
>(very little room in there), and the Elan uses 1/2 inch hoses (most
>aftermarket units I've found are 5/8 or greater).
>


Bob Bulfin
69 Elan S4
Will Grainger
 

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