Hi All,
I purchased a mechanical water temp gauge without thinking about how I would put the capillary tube through the firewall. Has anyone managed to do this without drilling another hole, which I definitely do not want to do. If so, which existing hole did you use? If I can't find a way to do this I guess I'll end up buying an electrical gauge.
Thanks in advance!
Grant
The largest grommet you could possibly use is the one for the Speedo cable.
This one has a large firewall hole, to accommodate the speedo end, which should also suit the Temp Sender end of the capillary tube, but you will need to cut a slot in the grommet to allow the tube to be centralised.
Bruce. >:D
Or you can use one of the unused spots in the oval shaped vacuum pass thru located nearby. You can also check for any unused connections in the main firewall electrical connector. you'll need the shop manual for that.
There's a grommet on the left side that has multiple "holes" for lines to pass thru it. Take it out, open one of the holes and snake it through.
It's between the master cylinder and the driver fender, kinda up high if I recall. Out of town right now, sorry, no pics....
Chris, I believe that's the one that has vacuum lines. There's always at least one available spot.
Thanks very much for the replies everyone! Just about to head out to the garage and try your suggestions, will report back once done.
Grant
An additional issue you may run into is the length of the 'cable'. These are long engines in big cars with the coolant ports on the front of the engine so you can't take too many detours along the way. Luckily you don't have the additional length of the Eldorado where the back of the engine is more than a foot away from the firewall.
Well I got the gauge and line installed, ended up using an existing hole that accommodates a vacuum line. See pic attached. Thanks again everyone for all your help!
Grant
That's the place I was thinking of.
That ought to work; same type I use, which works even after shutdown. Mine
has a 270 degree scale allowing a very compact 1.5" face. A bit of a loop
between the firewall and the engine will reduce fatigue from engine motion;
even so I expect failures after high miles. Bruce Roe