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Discussion Starter · #1 ·
I changed the water pump and thermostat but my car still overheats. No leaks no nothing. only thing i notice is my idle. idoling at 650-750 my temp is perfect, but all of a sudden it shoots up to 800-1000 rpm, thats when the overheating starts. also when its up there my idle doesnt come back down.
Another tip could be my ignition timing. With my timing gun set at 0, the mark on the crank cover is right below the tdc mark on the crank. ha come? isnt it supposed to be around the 3 marks when the gun's set at zero? Some1 please help me, i feel so hopeless.
 

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Yes, you definitely have a serious problem there if you are using the correct plug wire on your timing light.

Things to check:

When you check ignition timing, make sure you bridge the service connector

Check that the crank and cam gears line up at cylinder 1 TDC

Try rotating your distributor to get to 16 degrees BTDC. If you can't get there by rotating the dizzy and your service connector is bridged, this means your timing belt is off and needs to be re-installed or replaced.
 

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Discussion Starter · #3 ·
thanks man i hope your right. I might have installed the timing belt wrong when i changed the pump. Oh n yes i tried rotating the distributor, but seems the more i advance the higher my rpm gets. And when i retard it i hear my rpm's go down but not enough to get it to idle at 650-750. Actualy, i can fully retard my dizzy n im still idling at 900-1k rpms. Oh well, more work 4 me =/ my finger tips hurt.
I have another quick question. with my gun set at 0, the mark on the pastic is right under the btdc mark on the crank. am i too advanced or too retarded? thanks for the help man, i greatly appreciate it. you've given a hopeless man hope. =) peace
 

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TurboLS on Sep/13/07 said:
Yes, you definitely have a serious problem there if you are using the correct plug wire on your timing light.

Things to check:

When you check ignition timing, make sure you bridge the service connector

Check that the crank and cam gears line up at cylinder 1 TDC

Try rotating your distributor to get to 16 degrees BTDC. If you can't get there by rotating the dizzy and your service connector is bridged, this means your timing belt is off and needs to be re-installed or replaced.
dude your wrong he said he had the timing light set to zero meaning that it wil show the white tdc mark on the crank pully. if you want to see what your timing is in relevance to a 16 degree scale (red mark) then set the gun to 16 and you will see that mark. btw your car would idle like crap and you would only get about 10 to 15 in/hg if your timing was that far off. as to your overheating issue try doing a leakdon test i had a similar issue on a friends car that had a very minor head leak (internal)
 

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gsrallmotor on Sep/13/07 said:
thanks man i hope your right. I might have installed the timing belt wrong when i changed the pump. Oh n yes i tried rotating the distributor, but seems the more i advance the higher my rpm gets. And when i retard it i hear my rpm's go down but not enough to get it to idle at 650-750. Actualy, i can fully retard my dizzy n im still idling at 900-1k rpms. Oh well, more work 4 me =/ my finger tips hurt.
I have another quick question. with my gun set at 0, the mark on the pastic is right under the btdc mark on the crank. am i too advanced or too retarded? thanks for the help man, i greatly appreciate it. you've given a hopeless man hope. =) peace
I lied. sk8er is correct. I assumed a timing light and overlooked the phrase "set to 0". Thanks for the reality check, man...
 

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no problem man i didnt mean to freak out so bad like that but when i see something that could potentialy destroy a motor like advanceing a dizzy 16 degrees i tend to freak out.
 

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Discussion Starter · #8 ·
hay guys, found the problem, i think...i jumped my fan then warmed up my car. At 1st it was idling high but i noticed the temp didnt go passed normal even after 5 min of being started. So i just reved it at 2500 rpm for a good 5 sec. then right when i let go the rpm went down to 750...thank God. and thank u guys for the input. So moral of the story is, life is hard. but it's even harder when your dumb. I changed my f'n water pump and thermostat for no reason when it's been my fan relay or some kind of electrical problem. But everything is all G 4 now...till next problem, take care guys.
 
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