Engine temp wire removal

[Bdblazer1978]

I searched but couldn't find an answer. How do I remove the temp wire running from the back of the engine to the instrument panel from the instrument panel. I'm trying to remove the instrument panel. 

[B1B Keven]

It's not a wire. It's a small diameter copper tube with a protective wrap

around it.

There's a 'bulb' in the head filled with either gas.

Soak the two ( inner and outer ) gland nuts with Kroil or PBBlaster for a few days.

Sometimes you can get them apart. If you smell 'starter fluid' during your attempt

to remove/loosen them, the tube has broken and the bulb and tube need to be replaced.

 

[Bdblazer1978]

2 hours ago, B1B Keven said:

It's not a wire. It's a small diameter copper tube with a protective wrap

around it.

There's a 'bulb' in the head filled with either gas.

Soak the two ( inner and outer ) gland nuts with Kroil or PBBlaster for a few days.

Sometimes you can get them apart. If you smell 'starter fluid' during your attempt

to remove/loosen them, the tube has broken and the bulb and tube need to be replaced.

 

Thanks. We'll see how it goes in a couple days. 

[Plymouthy Adams]

be extremely careful...once the jamb nut is removed...it could still be so siezed that removing it is still a job...do not wiggle it much by the tube of and keep in mind that the very top of the bourdon tube is not a very strong bond either...

[TodFitch]

On my car there is a expansion/welch/freeze plug on the head above the sensing bulb. Not sure that exists on all versions of the Mopar L-6 engine but maybe it does. I believe you can remove that plug to give you a place to push from behind the bulb if it is frozen in place. I know from experience that it is quite easy to break the seal between the bulb and capillary if you try pulling on it. Been there, done that and that is why I figured out how to graft a new bulb on to my dash unit.

[kencombs]

1 minute ago, TodFitch said:

On my car there is a expansion/welch/freeze plug on the head above the sensing bulb. Not sure that exists on all versions of the Mopar L-6 engine but maybe it does. I believe you can remove that plug to give you a place to push from behind the bulb if it is frozen in place. I know from experience that it is quite easy to break the seal between the bulb and capillary if you try pulling on it. Been there, done that and that is why I figured out how to graft a new bulb on to my dash unit.

That is also a good place to add some mild acid to help free it up.  If the engine is full of coolant, you can pour in some citric/vinegar/muriatic acid of your choice (gently) and a lot of it will stay in place.    That will help dissolve the rust that is holding tight to the bulb.

[Todd B]

I remember when I was building my first B1B back in 1980 and my dad sent me out to the junk yard to get a good temp gauge.  I struggled getting it through the firewall so I just took a side cutter and cut it in half. Just to make sure I got a good one I brought back two of them.  I smelled the alcohol but thought nothing of it.  When I got home my dad just shook his head and if memory serves me right he called me a dumb!$@.  In my defense I was only 16 then. 

[Brent B3B]

I've  only had a 33% success rate so far of removing the bulb without damage. luckily my neighbor to the North rebuilds them

[B1B Keven]

17 minutes ago, Brent B3B said:

I've  only had a 33% success rate so far of removing the bulb without damage. luckily my neighbor to the North rebuilds them

 

[Bdblazer1978]

I'm 0/1 in trying to remove. Even after a lot of PB I snapped the bulb off. What does it cost to have it fixed?

Thanks

[Plymouthy Adams]

odds are if it is going to be fixed it is going to be you doing the job.....the process is outlined on this forum a number of times in various threads

[B1B Keven]

13 hours ago, Bdblazer1978 said:

I'm 0/1 in trying to remove. Even after a lot of PB I snapped the bulb off. What does it cost to have it fixed?

Thanks

 

 

You've got a PM.