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Please go to the website drugs.Com and you maybe able to find pictures, names and descriptions of what you need to know. I am not a doctor. I hope this helps
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you never work from the high pressure side of an a/c system. EPA requires it to be recycled, freon is removed using a vacuum tool on the low port until the system holds vacuum for 5 minutes. Then the recycler is removed and freon is added. You mean R134 right?
there are marks on different gears depending on the year and engine, these are small round indention colored marks on the vehicle I am familiar with (02 DOHC).
Drain anti_freeze low pressure air through the heater core will help empty it)
Disconnect Heater core hoses on the engine compartment side of the firewall.
Remove cover panel under dash.
Remove dash board brace (small support brace that runs from firewall to glove box shroud surround.)
Remove lower air box section. ( Many small screws so be sure you get them all)
Remove air conditioning evaporator (Some times this requires the disconnection of hoses in the engine compartment, But try to work around that first to avoid having to recharge your air conditioner.)
Remove the heater core mounting straps and screws.
Wiggle the heater core towards the glove box to extract the steel hoses from the firewall bushings/seals.
Be careful not to spill any remaining anti-freeze on the carpet.
If you had a leaky heater core be sure to clean the air box the best you can to keep the anti-freeze smell out of the car.
Reverse this procedure to install the new heater core.
I hope that helps someone in some way. It's not complicated but it is a pain in the rump to be upside down for that long. You may need to take several breaks during this process to give your neck and back a break as well as your knuckles... It's not an easy repair but it is pretty straight forward.
If I left any thing out please feel free to add comments to these instructions. Generally these instructions should cover most years of Buick Roadmasters.
Just an additional note: If you have to disconnect your air you may have to upgrade your entire system to the new R34 system instead of R12 because of the new environmental laws in some areas. Try to avoid this as best you can because R34 is not as effective in an older systems as it is in newer systems simply because the evaporator and condenser are smaller and they need to be large to transfer the heat in the R34. It's not nearly as effective at the transfer of heat as the environmentally unfriendly R12 was.
when saying crash bar do you mean roll bar? or the front bumper support?
if roll bar, i believe it will fit with minor adjustments on the floorboard.
if the bumper support. i dont think so. the r34 has a slightly more square design on the front end and would not make for a good switch.
in theory if you can weld you can get anything to fit. good luck hope they put a skyline section up for ya...ya lucky bastard. youve got my dream car. have a nice day
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