rear sight

[Alberta Separatist 11]

I have a Remington 788 rear sight that cannot be adjusted because of seized screws; currently using a bath of penetrating oil ;and outside temperatures to unseize them; without success.

any suggestions?

 

[jm181920]

can be drilled out?

 

[Alberta Separatist 11]

I don't think so; I do not have a drill press and the windage screw is a micro thread; top elevation screw is about 3/16" diameter.
A friend suggested putting assembly into a baggie and into the freezer for 2 - 3 days; then use a soldering iron.

 

[islandguy]

Do you know anybody with an ultrasonic cleaner? After a good soak in penetrating solvent, an ultrasonic bath might do the trick (without damaging anything).

 

[Alberta Separatist 11]

good idea, I have a shout out to members on the Alberta Outdoorsman.

cheers

 

[trevj]

I have a Remington 788 rear sight that cannot be adjusted because of seized screws; currently using a bath of penetrating oil ;and outside temperatures to unseize them; without success.

any suggestions?

Heat. If the sight does not have plastic parts, use a heat gun or wave a torch flame over it to raise the temperature.

Heat will soften any dried oil mung, and thin the penetrating oil so it can flow into the available spaces. Cold won't.

 

[mbogo3]

788 rear sights have plastic.

 

[crazypilotman17]

1. Heat the rear sight.
2. Spray a penetrant oil (kroil) on the rear sight screws.
3. Let the part cool to room temperature.
4. Touch the soldering to the rear sight near the screw. Do not touch the soldering iron on the screw.
5. Using the proper blade screw driver bit, start working the screw to produce movement(Avoid stripping the head at all cost!). If all is right in the world it should move.
6. If screw still doesn’t move repeat steps 1-5 untill it starts to move.

These are the steps that I use when removing the stubborn sights and screws on guns. No I am not an expert just a routine I have got into the past few years. P.S. A cheap temp gun is very handy here.

Hope this helps!

 

[trevj]

788 rear sights have plastic.

Still heat. Not as much!

Hair dryer, heat lamp, heat gun. Probably skip the torch then, unless you have a better than average hand at estimating the applied temperature.

 

[Alberta Separatist 11]

trevj; the plastic part of the sight has been taken off and I'm dealing with metal only.
had an outdoorsman contact me who ultrasounds motorcycle parts and he uses heat... sounds like I"ll try that.

 

[Alberta Separatist 11]

Do you know anybody with an ultrasonic cleaner? After a good soak in penetrating solvent, an ultrasonic bath might do the trick (without damaging anything).

an alberta outdoorsman who has a commercial ultrasonic cleaner helped me out..... sights adjust perfectly and no loss of bluing.

 

[guntech]

Last resort - try Western Gun Parts for a used 788 sight... I have a front sight but no rear sight.

 

[islandguy]

an alberta outdoorsman who has a commercial ultrasonic cleaner helped me out..... sights adjust perfectly and no loss of bluing.

Good news! I love happy endings.