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L/R trigger assembly question

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.410
Posts: 42
Joined: Tue Apr 05, 2016 6:34 pm
PostPosted: Sun Jan 21, 2018 1:11 pm
Hi 1187 experts!
Maybe a stupid question, but are the left handed and right handed trigger assemblies the same? (Apart from the safety catch direction of travel) My reason for asking is this. I have at the moment a left handed 1187 (despite being right handed it works for me) with a permanent 3 shot (UK) restriction. I recently was given an un-used fast loading kit and prior to getting a full magazine 2nd 1187 I am considering fitting the modification to my 3 shot so as to carry out function and suitability testing. My problem is that over here lefties are fairly rare so I will probably end up with a full mag right hander. Hence the question, would my modified trigger assembly work in a left or right hand gun? Or, should I be patient and wait until I get my high capacity 1187 and then fit the mod to that?
Probably answered my own question there I guess, unless you have advice to the contrary
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.270 WIN
Posts: 227
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Location: Williamsburg, Va.
PostPosted: Sun Jan 21, 2018 3:31 pm
Everything is the same except the safety, as you noted, and the carrier. The raised lip is on the opposite side.
What could have happened... did.
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.410
Posts: 42
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PostPosted: Sun Jan 21, 2018 4:58 pm
Thank you Sir! I am much obliged and will look out for a spare carrier if the project beats my patience! ( as I believe that this modification requires some filing of the carrier to fit and function)
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.410
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PostPosted: Sun Mar 11, 2018 4:09 pm
OK, to move on, I have fitted the fast load gate mod to my 3 shot restricted Lefty 1187. Apart from being an awkward job involving tentative filing of the carrier pivot area, it went well. Holding the thing together to relocate the pivot pin was one of the least favourite jobs I have carried out (working with hands inside a large clear plastic bag to catch all the wayward springs as they flew away!) Anyway, Today at the range I gave it a thorough workout and all is well, Load twos are now achievable and cycling is as stock, i.e. spot on.
My next question is this, now I've got this unit working in my 1187, I've been offered a good deal on a lefty 1100, with mag extension and pistol grip BUT..... will an 1187 trigger group work in an 1100 so I can simply switch over?
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.270 WIN
Posts: 227
Joined: Fri Dec 19, 2014 6:31 am
Location: Williamsburg, Va.
PostPosted: Fri Mar 16, 2018 7:18 pm
1100 and 11-87 trigger groups are identical. Check the part numbers.
What could have happened... did.
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.410
Posts: 42
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PostPosted: Wed Mar 21, 2018 3:23 pm
OK thanks for that. I passed on the 1100, it was a dog and the vendor was asking too much money anyway.
It did raise another question, if I may burden you some more. My 1187 is a Premier model 2-3/4" and 3" Are the general dimensions the same in the 2-3/4" only guns? (I will never use 3" as this will be a competition gun only) Simply, I am spreading my net a little farther in my quest for a non restricted lefty.
My last option is to de-restrict my current gun but I am concerned about weakening and/or deforming the mag tube
Still can't work out how to post pictures unfortunately
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.270 WIN
Posts: 227
Joined: Fri Dec 19, 2014 6:31 am
Location: Williamsburg, Va.
PostPosted: Wed Mar 21, 2018 11:05 pm
All 11-87s are 3" and 2-3/4" with the right barrel(s), But a 2-3/4" 1100 receiver is identical to a 3" 1100 or an 11-87 receiver dimensionally.
What could have happened... did.
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.410
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PostPosted: Thu Mar 22, 2018 5:37 am
Great Stuff! That gives me plenty of options, I am much obliged for your input and advices
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.410
Posts: 42
Joined: Tue Apr 05, 2016 6:34 pm
PostPosted: Mon Apr 23, 2018 5:57 pm
To bring this up to date, I was actually given an 1187 lefty that a fellow shooter was not using and had neglected a little, best price in the world $0 £0!
Based on the information gained here and through other research, I component level stripped the gun down. I ascertained that this gun had a right handed trigger assembly that the carrier had been filed to permit ejection! When I removed the safety catch (which was right handed) I discovered that the hole for the spring and ball detent is actually drilled off centre (left or right)in the trigger group chassis and that the safety catch itself is the same for either side. This did not concern me too much as I had fabricated an ambidextrous 90 degree rotating safety (down-safe, forward-fire) All I had to do was offset the detent path and hollows. I decided to fit the Dave's Metal Works Easiloader to this trigger group as the carrier had been somewhat butchered and I was going to sell the other 1187 as a standard gun for clays. When re-assembled I found that the filing had caused a step (which fouled the nose of the cartridge being loaded) due to the carrier going too far in when loading. I fabricated a small aluminium ramp which I mounted on the carrier to sit between the fingers of the Easiloader. The trigger group was then left (until range time was available)as I had some other mods to do. I eased the loading port and the rear lower part of the forearm to enable load two and quad loading. I fitted a picatinny rail to the underside of the forearm and mounted an angled fore grip. I fitted a grip improver with finger grooves to my synthetic Monte Carlo stock to move my hand closer to the trigger. I fabricated a magazine extension from a short extender tube mated and sleeved to an old savage pump tube. This gave me the 11+1 capacity that I was looking for. A barrel/mag clamp secured and prevents rotation. A 40" Wolff mag spring was a perfect fit. The standard follower is fine for the moment but I have ordered a low friction version. With everything assembled it was time for the range and the gun worked perfectly! 28g (1oz) and 24g (7/8oz) both fibre wad, cycled flawlessly. Ejection was clean and far. Loading was slick with no hang-ups. 12 rounds could be loosed in a few seconds (as fast as I could pull the trigger)
Maybe I've been lucky, I half expected some carrier related issues and I may well order a correct left handed carrier but for now, a slightly sorry for itself, unloved old Remmy is back in competition and I love it!
If I ever get round to working out how to post pictures I will add later
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.410
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PostPosted: Fri May 18, 2018 1:28 pm
Well, famous last words 'it works flawlessly' !!
Entered into a short competition and the gun started playing up, various problems
1 failing to extract, the bolt moves back but incomplete and returns to battery with the fired case
2 failing to eject, the case is removed but stays in the port, action locked back, new round on carrier
3 stovepipe, next round on carrier
4 extraction and ejection but next round sits on carrier action locked back
I was using a mixture of 24g, 28g and 32g loads and had the same problems with each
My diagnosis (for what its worth)
The rubber gas seal was a touch brittle
Possibly the magazine spring not quite strong enough to send the shell into the latch release
Dirt or debris in the latch spring area (the plunger movement does seem a touch tight, very strong spring)
Incorrectly adjusted Dave's Metal Works easi-loader (releases at correct 1/8" point)
Or a combination of the above?
I should be grateful for your comments/advice
I have replaced the gas ring and shortened the mag tube (to make the spring more efficient) and will report when range time permits.
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Other than the above (and the fails were not constant) the gun points, loads and shoots like a dream. I just hope to be able to iron out the bugs
User avatar
.270 WIN
Posts: 227
Joined: Fri Dec 19, 2014 6:31 am
Location: Williamsburg, Va.
PostPosted: Fri May 18, 2018 7:24 pm
Have seen more EZ loader issues that I can recall. With light loads - less than 1 ounce - a lot of 11-87s will benefit from an oversized O ring in front of the piston and piston seal. Works like a barrel seal activator.
What could have happened... did.
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.410
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Joined: Tue Apr 05, 2016 6:34 pm
PostPosted: Sat May 19, 2018 7:10 am
Thank you Sir,
I felt that that may be the case here. Is an oversize O ring an orderable Remington part, or do I need to source from elsewhere?
I have read about putting two O rings in place, is this something you would recommend?
I am grateful for your assistance
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.270 WIN
Posts: 227
Joined: Fri Dec 19, 2014 6:31 am
Location: Williamsburg, Va.
PostPosted: Sat May 19, 2018 10:29 pm
Go to an auto parts house and get either a neoprene or Viton O ring. I think a size 119 - 3/32" cross section, 15/16" ID, 1-1/8" OD is the one. But it might be a 213 - 1/8" thick. The purpose of this O ring is to block the flow of gasses to the relief valve.
I have never seen where 2 regular O rings did anything useful.
What could have happened... did.
User avatar
.410
Posts: 42
Joined: Tue Apr 05, 2016 6:34 pm
PostPosted: Sun May 20, 2018 11:18 am
Thank you, I have ordered some, a standard size apparently. I will report back on performance after range time.
I am much obliged by you giving your time and knowledge on the forum, I am guessing that you often see the same problems as we tinker with our guns!
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.410
Posts: 42
Joined: Tue Apr 05, 2016 6:34 pm
PostPosted: Tue May 22, 2018 3:51 pm
OK the oversize O rings have arrived. Not been to range yet but I may have some more pertinent information with reference to the gas system. Firstly this gun has the older two part piston assembly (serial number PC487217) which is 100% clean and free moving
Taking it down again to double check the EZloader positioning (it did need a slight adjust) and to fit the oversize O ring I noticed a discrepancy with respect to the schematic that I have.
On the schematic are shown the parts pictured below, labelled as Gas cylinder collar and Gas cylinder collar spring, I do not have these parts and it would seem that the two holes in the cylinder would vent the gas and so reduce the volume available to cycle the action. It would appear that the spring (ring) would sit over these vent holes and release any excess gas from heavy loads. From the look of the collar it would seem to be some sort of shroud to perhaps protect the wood from the hot gases but may also have a contributory function connected to the movement or confinement of the gas.
Perhaps you would advise whether I do indeed have parts missing and if this would contribute to the cycle problems i am having, or whether these parts are not fitted to some models.
remm.jpg
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remm1.jpg
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Thank you for your interest
User avatar
.270 WIN
Posts: 227
Joined: Fri Dec 19, 2014 6:31 am
Location: Williamsburg, Va.
PostPosted: Tue May 22, 2018 9:28 pm
You definitely need the spring (GAS CYLINDER SPRING 93498). Do NOT over spring it installing it. The collar is used on wood Fore end guns, but I have shot a many a round without one with no ill effects.
What could have happened... did.
User avatar
.410
Posts: 42
Joined: Tue Apr 05, 2016 6:34 pm
PostPosted: Wed May 23, 2018 12:15 pm
Thanks, the part is now ordered. I hope that when i next take the gun to the range that I can add reliability to its other virtues, that of being comfortable to shoot, accurate and slick handling.
Looking forward!
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.410
Posts: 42
Joined: Tue Apr 05, 2016 6:34 pm
PostPosted: Sun Jun 10, 2018 3:11 pm
Slight Problem when testing at range today
I loaded a single round, took aim and click, nothing. Thinking it was a dud I reloaded, again click. looked for light strike, on both rounds, zero. On closer inspection it seemed possible that the bolt was not fully in battery (although securely locked). Without tools/spares (forgot them at home, Doh!) I decided to pass on further testing until I could take it down.
I confirmed the fault at home using snap-caps with masking tape over the strike point, there was no indentation at all.
I took the gun down and to cut a long story short, I found that the oversize O ring was to blame. When I fitted a standard O ring I would get a good perforation of my tape markers. The oversize O ring mics at 009 thou (just under the 3/32 cross section stated)
So did I do something wrong, or are my guns tolerances too fine for the oversize O ring?
I should be grateful for your opinions
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.270 WIN
Posts: 227
Joined: Fri Dec 19, 2014 6:31 am
Location: Williamsburg, Va.
PostPosted: Sun Jun 10, 2018 3:26 pm
You need to get that O ring wedged into the beginning of the channel leading forward to the gas relief system. Should get it just cycling the action.
What could have happened... did.
User avatar
.410
Posts: 42
Joined: Tue Apr 05, 2016 6:34 pm
PostPosted: Sun Jun 10, 2018 4:31 pm
OK I will try that next time. I had simply placed the O ring in the grooved section of the mag tube, when removing the barrel the O ring had moved rearwards half an inch (which was what gave me the clue that the O ring was problematic) A final thought, would the updated (clip together) piston system be of any benefit in this situation?
Thank you as always for your patience and advice

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