this was posted in another thread about swapping out a coupe trunk lid for a sedan one (this is 92/93, ive never dealt with a 9091 trunk lid). this should work either direction when swapping, but the problem is that you cant keep your working key since the lock cylinders dont swap between the lids... so i found a way to swap the actual pins on the cylinders so you can keep the new cylinder, but itll have your old pins so itll match your old key. just read on... pics by uncle_el, thanks elliot!
lemme think thru this in my head.... there should be like 5 plugs on the wiring harness - one for each tail, one for each plate light, and one for the latch... disconnect those, and unclip the harness from the lid (there are a few plastic clips u can pop out with pliars). pull the whole harness out of the whole on the side of the trunk. take the three 10mm bolts out of the latch and pull the latch out a bit, theres a plastic clip (usually purple from what ive seen, can vary tho) - push it back towards the inside of the trunk lid to release the metal bar, pull the bar out of the hole (this bar is what connects the keyhole to the latch). once thats out, the cable pops right out of the latch... once u pop it out, pull it out thru the same hole on the left side of the trunk. it should be all out now, there are four bolts (2 on each side) holding the trunk lid onto the hinges. unbolt the trunk and flip it over next to the new one - so you can compare lock cylinders.
swapping lock pins is a little complicated, and i can only give very basic instructions because i would be doing it from memory... so i say hold off on the lock, and swap around the pins later, when i can take the time to write a good DIY (i need to get a coupe lock for an example and pics). so just leave the locks how they are for now, you can always get to them later.
bolt the new trunk lid on (helps if u have a second person), then start weeding the wires / cable into the hole. i say put the cable in first, and get that hooked up before running the wires. just stick the cable in, it doesnt matter really where it runs as long as it reaches to the latch. pass it in, grab it w/ ur fingers at the next closest hole, and pass it to the next hole, etc etc until you can get it hooked up.
do the same for the wiring harness, until all of the plugs reach and plug in. the plugs on the harness should plug right into the new sedan lights with no problem.
and voila, trunk lid conversion is done
LET ME SAY IT RIGHT NOW:swapping trunk lids between any 90-91 and a 92-93 sedan the locks are swappable, but swapping to or from a 92-93 coupe lid is when you need to do the following crazy lock disassembly.
for the locks, there is a set of pins that match your exact key. Thats how just your key works with your car, your pins are matched to your key. so the point of swapping pins is to keep YOUR matching set of pins from the old trunk lid, and install them in the new trunk. you cant just swap entire lock cylinders because they dont mount up, but if you swap the pins between them, you can put your pins into the new cylinder, so your key works in the new lock.
for a graphical explaination of how a lock works (itll make swapping pins much more clear) go here and read this page, and then click next and read that page too: http://home.howstuffworks.com/lock-picking3.htm now the only difference is that cars use flat plates ("wafers") instead of cylinder pins, but the idea behind it is the same.
make sure to take the pins out of the old lock cylinder (the ones that work from the old trunk), and swap them for the pins in the new lock cylinder (the ones that won't work in the new trunk).
lemme think thru this in my head.... there should be like 5 plugs on the wiring harness - one for each tail, one for each plate light, and one for the latch... disconnect those, and unclip the harness from the lid (there are a few plastic clips u can pop out with pliars). pull the whole harness out of the whole on the side of the trunk. take the three 10mm bolts out of the latch and pull the latch out a bit, theres a plastic clip (usually purple from what ive seen, can vary tho) - push it back towards the inside of the trunk lid to release the metal bar, pull the bar out of the hole (this bar is what connects the keyhole to the latch). once thats out, the cable pops right out of the latch... once u pop it out, pull it out thru the same hole on the left side of the trunk. it should be all out now, there are four bolts (2 on each side) holding the trunk lid onto the hinges. unbolt the trunk and flip it over next to the new one - so you can compare lock cylinders.
swapping lock pins is a little complicated, and i can only give very basic instructions because i would be doing it from memory... so i say hold off on the lock, and swap around the pins later, when i can take the time to write a good DIY (i need to get a coupe lock for an example and pics). so just leave the locks how they are for now, you can always get to them later.
bolt the new trunk lid on (helps if u have a second person), then start weeding the wires / cable into the hole. i say put the cable in first, and get that hooked up before running the wires. just stick the cable in, it doesnt matter really where it runs as long as it reaches to the latch. pass it in, grab it w/ ur fingers at the next closest hole, and pass it to the next hole, etc etc until you can get it hooked up.
do the same for the wiring harness, until all of the plugs reach and plug in. the plugs on the harness should plug right into the new sedan lights with no problem.
and voila, trunk lid conversion is done
LET ME SAY IT RIGHT NOW:swapping trunk lids between any 90-91 and a 92-93 sedan the locks are swappable, but swapping to or from a 92-93 coupe lid is when you need to do the following crazy lock disassembly.
for the locks, there is a set of pins that match your exact key. Thats how just your key works with your car, your pins are matched to your key. so the point of swapping pins is to keep YOUR matching set of pins from the old trunk lid, and install them in the new trunk. you cant just swap entire lock cylinders because they dont mount up, but if you swap the pins between them, you can put your pins into the new cylinder, so your key works in the new lock.
for a graphical explaination of how a lock works (itll make swapping pins much more clear) go here and read this page, and then click next and read that page too: http://home.howstuffworks.com/lock-picking3.htm now the only difference is that cars use flat plates ("wafers") instead of cylinder pins, but the idea behind it is the same.
Originally posted by cpmike
swapping the pins of the lock cylinders - so when you swap trunk lids, you can make it so your key still works with the new lid
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c p m 1 x e: ok so um lemme type
c p m 1 x e: this will be all completely from memory
c p m 1 x e: and i havent seen a lock cyl since i was at ur house
accordtun3rx: hmm
accordtun3rx: well ok
c p m 1 x e: typing.
accordtun3rx: just see what you can do
accordtun3rx: as long as it's ballpark
c p m 1 x e:
1. use a flathead screwdriver and pry off the shiny metal cap, the one thats over the end where u put ur key in
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c p m 1 x e: ok so um lemme type
c p m 1 x e: this will be all completely from memory
c p m 1 x e: and i havent seen a lock cyl since i was at ur house
accordtun3rx: hmm
accordtun3rx: well ok
c p m 1 x e: typing.
accordtun3rx: just see what you can do
accordtun3rx: as long as it's ballpark
c p m 1 x e:
1. use a flathead screwdriver and pry off the shiny metal cap, the one thats over the end where u put ur key in
2. unwrap and pop off the spring and plastic clip thing from the other end
3. the center column slides out of its cylinder shell, and theres these flat plates and springs coming out of either side of it, like 5 on one side, 4 on the other? when ur pulling it out, hold all of the plates in with ur fingers. when the column is all the way out, set it down on its side so none of the plates fall out
c p m 1 x e: do that to both cylinders
c p m 1 x e: and then one by one pull the first plates out and swap them, then the second one, then the third
c p m 1 x e: till all of the flat plates are swapped between the two cylinders.
c p m 1 x e: reassemble backwards and test the keys
c p m 1 x e: make sure u dont lose the tiny springs, and u gotta make sure they go back in the right spot. lemme draw a quick diagram of where the spring goes:
accordtun3rx: k
c p m 1 x e:
c p m 1 x e:
how the pins are arranged sticking out of hte sides of the column:
c p m 1 x e: and then one by one pull the first plates out and swap them, then the second one, then the third
c p m 1 x e: till all of the flat plates are swapped between the two cylinders.
c p m 1 x e: reassemble backwards and test the keys
c p m 1 x e: make sure u dont lose the tiny springs, and u gotta make sure they go back in the right spot. lemme draw a quick diagram of where the spring goes:
accordtun3rx: k
c p m 1 x e:
Code:
_______
/_ |
#| _ |
#| | | |
#|_| |_|
^ the lb signs are the spring, under the little overhanging ledge of the plate
how the pins are arranged sticking out of hte sides of the column:
Code:
___
===| o |
| o |===
===| o |
| o |===
===| o |
| o |===
===| o |
|___|
c p m 1 x e: if youre very careful pulling it apart, and pay atention to where you took everything off of, you should just be able to put it all back together, just with all of hte plates swapped
c p m 1 x e: do NOT rearrange them :-P
accordtun3rx: lol awesome
c p m 1 x e: sha
c p m 1 x e: do NOT rearrange them :-P
accordtun3rx: lol awesome
c p m 1 x e: sha
ill have to check the 9091 lock cylinder soon.
)
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