Re: Bleed caliper with broken bleeder screw + voltage reg.? - Saab 900 Bulletin Board - Saabnet.com
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Re: Bleed caliper with broken bleeder screw + voltage reg.?
Posted by JohnK (more from JohnK) on Mon, 3 Jan 2005 09:42:00
In Reply to: Bleed caliper with broken bleeder screw + voltage reg.?, dedreux, Sun, 2 Jan 2005 17:58:50
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A bad alternator ground will not usually be an intermittent cutting out or hesitation like a bad miss...not really an idle fluctuation. Alternator ground check is easy. Just take a jumper cable or scrap rwire and connect between alternator frame and battery ground. If that fixes your problem, replace existing ground wire or just add a backup directly to battery.
If the angled screwdriver won't crack the regulator screw, get a decent quality needle nose vice grip and grab the head. Once broken free, the angle screwdriver will work. Repace the screw with a hex bolt when you put in the new regulator.
I would not rule out the O2 sensor or the AIC valve, and make sure the throttle position switch is OK and throttle body is clean so the butterfly closes.
Finally, hacking a caliper bleeder screw is no fun and you might just have to get a rebuilt caliper.
Here's how I would go after the bleeder screw. Spray with penetrant and give it a few sharp whacks to help the penetrant soak in. Then try an ez-out in the hole connected to a hand impact driver to "shock" the threads loose. If that doesn't work, i'd heat it up and try with the impact driver and ezout again. Then I would give up and put in a new caliper rather than trying a drill out. Some might try a drill out, but calipers aren't that expensive and I wouldn't trust bodged threads from the drill.
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