Click on image for the lowdown. 
====
| | |
7 members (klhansen, John Dlugos, Gray_Ghost, Otto Skorzeny, Gdads51, Oswald, 1 invisible),
166
guests, and
3
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,101 Posts1,056,179 Members48,436 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jan 2016 Posts: 1,101 'Bolter | | 'Bolter Joined: Jan 2016 Posts: 1,101 | I know you can't just re-plumb a temp gauge because the line is filled with either. What about an oil pressure gauge? If the line is cut can you just replace the line or is it filled with some sort of gas also. | | | | | Joined: Apr 2005 Posts: 7,440 Bolter | | Bolter Joined: Apr 2005 Posts: 7,440 | Replace the line. No harm no foul!
Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)
| | | | | Joined: Feb 2013 Posts: 250 'Bolter | | 'Bolter Joined: Feb 2013 Posts: 250 | Just replace the line. If the gauge is good it will work fine. | | | | | Joined: Jul 2000 Posts: 2,193 Insomniac | | Insomniac Joined: Jul 2000 Posts: 2,193 | I believe you will need compression rings to go with the new line.
Gord 🇨🇦
----
1954 1/2 ton 235 4 speed
| | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | You probably have enough slack in your line to cut end off, and put on a new compression ring which you can get at Ace Hardware. | | | | | Joined: Dec 2018 Posts: 2,450 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,450 | Gord&Fran In the olden days they had a one time nut with the ferrel made on it,you'd just cut it off and use a new one. Later big trucks had a line with a "cushion coil" rolled in it using modern ferrels. | | | | | Joined: Dec 2018 Posts: 2,450 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,450 | dgrinnen Can use copper,steel or plastic most old bolters would probably use steel if they can find it. 1/8 th on old ones it's not real responsive but was stock on 50's AD trucks.Used to find a big truck junked to get the line with a factory coil on it to pad the gauge. | | | | | Joined: May 2015 Posts: 11,067 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,067 | The line and gauge are (eventually) full of oil. So you need to make sure the connection at the gauge doesn't leak or you'll get oil on your shoes. New fittings and ferrules would be a good thing.
Get enough line to put a coil (3-4 inches in diameter and about 2 full coils) in it just outside the firewall. The main purpose of that coil is to give the line flexibility from vibration between engine and firewall (as well as act as a snubber to keep the gauge needle from bouncing too much.)
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Jan 2016 Posts: 1,101 'Bolter | | 'Bolter Joined: Jan 2016 Posts: 1,101 | Thanks for all the feedback. My current gauge has the line completely removed. I will be a new line from the gauge all the way to the engine connection. Is there any value in trying to pre-fill the line with oil? | | | | | Joined: May 2015 Posts: 11,067 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,067 | No need to fill the line with oil. Pressure is pressure, whether it's oil or air.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Dec 2018 Posts: 2,450 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,450 | dgrinnen Be sure your gauge connection is oil tight,a leak under the dash creates a tremendous mess you can't get to to clean it up . Also I think on the gauge you'll need a nut with the ferrel made on it. Been a while since I fought that,hopefully when you took one loose it wouldn't be too far gone to re-use. Back in the day you usually had new nuts available,now the kid will just look at you !! | | | | | Joined: May 2015 Posts: 11,067 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,067 | The captive ferrule nuts are still available. Link
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | |
|
|
