Help For the mechanically challenged - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cojnit · 04-12-2004, 03:56 PM

I need to fix my HEI. I read a bunch of stuff from searching, but I was in way over my head.

I want to make sure I get the thing installed correctly, what should I be marking and referencing to make the new one go in and start right up?

thanks in advance

diggin69 · 04-12-2004, 05:02 PM

make sure it is at top dead center then put dizzy in with vacum pointed to #8 then point rotor to #1 drop in if it back fires through the carb it might be 180 out pull dizzy up turn rotor to were it points the oposit way this should get it then move your dizzy to time correctly.........if I left somthing out sombody will set me staight....lol

cojnit · 04-12-2004, 05:06 PM

what the heck is a dizzy?

acloco · 04-12-2004, 05:08 PM

Have you removed the distributor yet? If not...

1. remove cap from distributor, noting location of #1 cylinder plug wire on cap-use a sharpie pen on the distributor base or scratch mark. REMOVE the BAT, TACH, & ignition module wires from cap - coil WILL fire if they are not.
2. rotate engine, until timing mark is at TDC and rotor is pointing to #1 plug location on cap. note which way distributor turns-clockwise as viewed looking down at rotor.
3. remove distributor, replace your parts as needed...
4. install distributor - note -turn rotor back (counterclockwise) approximately 3/4".....because the distributor gear and can gear for distributor drive are helical cut like this /////
5. You might have to rotate the engine until the bottom of the distributor engages the oil pump drive shaft.......if so..no problem, rotate the engine until #1 is at TDC & timing mark is at 0. If rotor points to #1 cylinder mark on distributor housing....you are good to go. rotate engine to 8 or 10 BTDC....install your cap, wires, etc...and fire it up. Check timing after engine is started. GOOD LUCK!

bigskiohio · 04-12-2004, 05:29 PM

put # 1 piston on compression stroke ,put thumb over spark hole, when you feel pressure stop. then turn balancer to "0" on balancer indicator. motor ready.
now on dist pick out #1 cyl. tower on cap. scribe scratch or mark on aluminum body of dist. right below that. take off dist. cap ,now when you drop in dist. you want rotor pointing at that mark. if dist. does not go down all the way turn motor by hand till it drops and engages oil pump drive. point vac cannister at front right of engine should be good to start. dont forget dist. clamp.

70ChevyLongbed · 04-12-2004, 05:55 PM

Quote:

Originally posted by cojnit
what the heck is a dizzy?

You prolly know this already...

dizzy = Distributor (or HEI)

Good luck Bra!

04-12-2004, 05:02 PM	#2
diggin69 Southern but in Ohio!!!! Join Date: Jan 2002 Location: Eaton,Oh. 45320 Posts: 467	make sure it is at top dead center then put dizzy in with vacum pointed to #8 then point rotor to #1 drop in if it back fires through the carb it might be 180 out pull dizzy up turn rotor to were it points the oposit way this should get it then move your dizzy to time correctly.........if I left somthing out sombody will set me staight....lol __________________ 1969 C/10 3/4 ton 4x4 longbed custom, frame made from a 79 1972 custom-10 half/ton longbed 1980 1/2 ton 4x4 all original 350/350/205 with air Eaton,Oh rebelryder@hotmail.com

04-12-2004, 05:06 PM	#3
cojnit Nothing clever Join Date: Jun 2003 Location: Kailua HI Posts: 828	what the heck is a dizzy? __________________ Got "the Midas Touch!"

04-12-2004, 03:56 PM	#1
cojnit Nothing clever Join Date: Jun 2003 Location: Kailua HI Posts: 828	Help For the mechanically challenged I need to fix my HEI. I read a bunch of stuff from searching, but I was in way over my head. I want to make sure I get the thing installed correctly, what should I be marking and referencing to make the new one go in and start right up? thanks in advance __________________ Got "the Midas Touch!"

04-12-2004, 05:08 PM	#4
acloco Registered User Join Date: Apr 2004 Location: Nebraska Posts: 335	Have you removed the distributor yet? If not... 1. remove cap from distributor, noting location of #1 cylinder plug wire on cap-use a sharpie pen on the distributor base or scratch mark. REMOVE the BAT, TACH, & ignition module wires from cap - coil WILL fire if they are not. 2. rotate engine, until timing mark is at TDC and rotor is pointing to #1 plug location on cap. note which way distributor turns-clockwise as viewed looking down at rotor. 3. remove distributor, replace your parts as needed... 4. install distributor - note -turn rotor back (counterclockwise) approximately 3/4".....because the distributor gear and can gear for distributor drive are helical cut like this ///// 5. You might have to rotate the engine until the bottom of the distributor engages the oil pump drive shaft.......if so..no problem, rotate the engine until #1 is at TDC & timing mark is at 0. If rotor points to #1 cylinder mark on distributor housing....you are good to go. rotate engine to 8 or 10 BTDC....install your cap, wires, etc...and fire it up. Check timing after engine is started. GOOD LUCK!

04-12-2004, 05:29 PM	#5
bigskiohio Registered User Join Date: Sep 2003 Location: Ohio Posts: 127	put # 1 piston on compression stroke ,put thumb over spark hole, when you feel pressure stop. then turn balancer to "0" on balancer indicator. motor ready. now on dist pick out #1 cyl. tower on cap. scribe scratch or mark on aluminum body of dist. right below that. take off dist. cap ,now when you drop in dist. you want rotor pointing at that mark. if dist. does not go down all the way turn motor by hand till it drops and engages oil pump drive. point vac cannister at front right of engine should be good to start. dont forget dist. clamp.



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