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About ptt

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    Senior Member
  • Birthday 08/04/1950

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  • Location:
    Independence, Missouri
  • Interests:
    Things that go zoom-zoom.
  1. 1990 AC system

    Thank you, Barney.
  2. 1990 AC system

    The ac system has been converted to R134a by PO. Was performing fine for a few seasons before compressor manifold tube cracked. I'm wondering about how many cans of R134a refrigerant it will require to recharge after I vacuum the system.?
  3. I'm redoing the AC system on my 1990 Coupe. The AC system was converted over to R134a refridgerant by the PO and worked fine for a couple of seasons before a cracked pipe at the hose coming off the compressor happened. I'm wondering what the correct orifice needed if different from the original R-12 tube. The difference of the different refridgerants at the molecular level being considered.
  4. My crankbolt isn't 18mm...its apparently 23mm. I also noted my 23mm impact socket has disappeared so I have to go buy a replacement. I did notice that when I pulled the electrical plug from the sensor that there was lots of oil present IN the sensor. No wonder it failed.
  5. I am about to tackle the crank position sensor on my 90 coupe. I have replaced the harmonic balancer on my 90 convertible a year ago when it started chattering. Unfortunately I can only find my 1988 FSM and it doesn't refer to the bracket that shields the sensor. It appears to support the little damper shock on that side of the engine. I don't recall there being any issue with removing this bracket to get the HB off of the 90 convertible. Will there be a bolt alignment issue when putting the bracket back onto the block (two bolts)? Also, as I recall I used an electric impact gun to get the crankshaft bolt out. I hope that's OK..... Thanks.
  6. 1990 Convertible trunk release.

    Put the wire up on the little metal tab but it didn't work. Ive been releasing the rear of the top and manually popping the hard tonneau cover to access the little orange emergency release lever with a long wooden handled squeegie while having my umbrella propped up under the lip of the trunk. Also...replaced the #2 BODY fuse that was blown. Still doesn't pop the trunk up enough. I'm thinking maybe the solenoid isn't releasing the latch enough to let trunk deck release. Is there any adjustment that I'm missing?
  7. 1990 Coupe w/149K dies....

    ICM is only two weeks old. When this problem first started I automatically checked to see if the ICM was spewing green slime. There was green goop on the coolant hose below it so I swappd on my spare I keep for such a situation. Its starting to look like the CPS may be the culprit.
  8. 1990 Coupe w/149K dies....

    Took delivery of new fuel pressure tester and hooked it up. It read 40psi and 15min later it was at 36psi. It started right up with previously charged battery. Once the engine had warmed up to 4th bar on temp gauge it died.
  9. 1990 Coupe w/149K dies....

    Could an undercharged/weak battery cause the same symptoms? Ive got a fuel pressure tester ordered.
  10. I first had a problem starting the Coupe a couple weeks ago. I do get the fuel pump buzz and stopping. It finally started. Now it will intermittantly start and idle fine for a minute or two and just die as if I turned the key off. Now it will only turn over and catch then idle a few seconds and die . I noticed the coil packs were leaking so I replaced with a new one. Still starting then stalling out. Thoughts appreciated.
  11. 1990 AC green o-rings

    I'm getting ready to recharge my previously converted to r134a 1990 AC system and have the green set of O-rings for the job. My question is do these green O-rings require some silicon on them when installed? I recall doing that in the past but I'm not sure it was with green O-rings or even with r134a refridgerant.. I think the r134a refridgerant is smaller sized moleculer-wise and whether or not that would require the silicone to achieve a better seal at the O-rings may be the case.
  12. I have cracked AC aluminum tubing where it comes off the compressor itself and the hoses start to go to the accumulator thus losing all the r134a refridgerant. I have acquired everything to fix the problem. The system worked fine for a couple of Summer seasons and had been converted to r134a by the previous owner. I'm wondering what high and low pressures I should look for when I recharge the system. Ive heard that the r134a conversion in the Reatta AC system only requires approximately 80% of the original R-12 pressures. Like possibly HIGH side 180 and LOW side 40 maybe??? I'm considering using ENVIROSAFE-12 which requires even lower system pressures which would put even less strain pressurewise on the system.
  13. It seems like my convertible has acquired gremlins over the winter in both the trunk and tonneau release mechanisms. I posted prior to this post about the trunk release problem now I'm having to open the tonneau by using the levers manually after pulling the lever to release the rear of the top. Sliding the tonneau release button up doesn't work. Isnt this supposed to activate a solenoid to pop the tonneau up? It doesn't click at all. Would this be controlled by a fuse?
  14. 1990 Convertible trunk release.

    Using Barneys pic as reference, it appears my horizontal WIRE is not in the horizontal position but below the metal tab when trunk is open. I will try putting the WIRE back in the same horizontal position as the pic and see if it works. Thanks all.
  15. My convertible trunk will CLICK when the release button is pushed but will not open. Any thoughts appreciated.