 Got a question for V8 Gurus, No, I dont know everything! |
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| skline |
 Aug 3 2005, 06:04 PM
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#1
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Born to Drive  Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California  |
Car runs great, I think it is running a tad on the warm side. Also, when it is running warmer than normal around 210 consistently, I notice the Voltmeter goes to max. If I shut it off, it goes back to normal and when I restart the car it stays at around 14 volts but when I rev the motor it runs back up to max again. Any ideas on what would cause that? It just started doing it when the car started running warmer than it was, it used to run at 180 to 190 but now it's up to 210. Anyone know what is going on?
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| John2kx |
Aug 3 2005, 06:22 PM
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#2
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Senior Member Group: Members Posts: 502 Joined: 22-August 03 From: Augusta, Ga. Member No.: 1,066 |
Scott,
Since your car was running consistant at 180-190, I would guess you have a electrical problem that may be throwing off your water temp. gage. Throw that idea out the window if your running a mechanical gage. Sorry, can't help you with the volt meter issue. John |
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| skline |
Aug 3 2005, 07:11 PM
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#3
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Born to Drive Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California |
John, that thought did cross my mind, they are electrical gauges so that could be a possibilty. I was hoping someone here had experienced the same thing and would have a quick answer for me.
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| 914GT |
Aug 3 2005, 08:28 PM
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#4
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Senior Member Group: Members Posts: 1,101 Joined: 11-October 04 From: Tucson Member No.: 2,923 Region Association: Southwest Region |
Scott
If I recall correctly you recently replaced your alternator. How did you wire it up? If something is hosed with the wiring, or if the alternator has a defective regulator or field circuit, the voltage can go too high. Put a DVM on the battery and see what it's running since it's pegging the console gauge. Too high or too low voltage can definitely cause errors in your temp gauge. |
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| skline |
Aug 3 2005, 09:08 PM
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#5
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Born to Drive Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California |
Matt and I just hooked up the VOM to the battery and it confirms that it is jumping to 18 volts when revved up about idle. I sent an email to the guy I got the alternator from as it has a one year warranty on it but he is in Tennessee so I dont think I will hear anything till tomorrow. I just replaced the header gasket with a new one and now my exhaust leak sounds worse, I think I need to change the flange gasket as well.
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| bondo |
Aug 3 2005, 09:20 PM
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#6
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
I hope you aren't running an optima, they don't like anything over 15v.
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| John2kx |
Aug 4 2005, 07:36 AM
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#7
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Senior Member Group: Members Posts: 502 Joined: 22-August 03 From: Augusta, Ga. Member No.: 1,066 |
Scott, I used a aluminum gasket with graphite inserts around exhaust port on my installation as recommended by several small block gurus in my area. This was the only engine with headers I ever ran that did not leak. Looks like your on to something with that alternator and would take care of that issue before doing anything to the cooling system. John |
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| JWest |
Aug 4 2005, 08:25 AM
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#8
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Senior Member Group: Members Posts: 1,662 Joined: 6-January 03 From: Fort Worth, TX Member No.: 97 Region Association: None 
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I always use the blue Fel-Pro header gaskets (look like the same design as a blue Fel-pro composite head gasket) - a little pricy but they work nice. |
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| Twystd1 |
Aug 4 2005, 08:30 AM
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#9
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You don't want to know... really..... Group: Members Posts: 2,515 Joined: 12-September 04 From: Newport Beach, California Member No.: 2,743 |
Scott,
If I am not mistaken, I believe Slits told me he uses Aaron's TOE JAM for exhaust gasket material. (IMG:http://www.914world.com/bbs2/html/emoticons/ohmy.gif) Then again... My memory isn't the best sometimes..... Twystd1 (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif) |
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| skline |
Aug 4 2005, 08:35 AM
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#10
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Born to Drive Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California |
I got a reply this morning from the guy I got the alternator from and he is shipping a new one out today with a return ship label to return the old one. The car is doing nothing till the new one arrives and gets installed. Yes, I have an Optima battery.
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