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Re: new distributor [Re: MR_P_BODY] #2762857
04/11/20 08:54 PM
04/11/20 08:54 PM
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Originally Posted by MR_P_BODY
You may want to advance it a few degrees to pick up some torque
wave


im confused i thought it was advanced??? more or the other way?

Re: new distributor [Re: 8urvette] #2762865
04/11/20 09:13 PM
04/11/20 09:13 PM
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No.. thats retarded.. the company wanted it installed at 112... the smaller the number is advancing
it... the way it is now would be more for a nitrous engine... I would put it in at 108 to no more than 110
wave

Last edited by MR_P_BODY; 04/11/20 09:15 PM.
Re: new distributor [Re: MR_P_BODY] #2762877
04/11/20 09:53 PM
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will that get me more vacuum at idle?

will this help is not overheat?

Re: new distributor [Re: 8urvette] #2762888
04/11/20 10:42 PM
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Not really on either of those issues.. it could reduce some heat.. but on the heat I think you
have another issue.. it could be as simple as the pump not turning fast enough.. do you run
a shroud on the fan.. are the fan blades just in from the edge of the shroud
wave

Re: new distributor [Re: 8urvette] #2762890
04/11/20 10:49 PM
04/11/20 10:49 PM
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Which lifter, the first one at the front of the driver side or the second one from the front, where you checking the cam timing from?


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: new distributor [Re: Cab_Burge] #2762892
04/11/20 11:01 PM
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Originally Posted by Cab_Burge
Which lifter, the first one at the front of the driver side or the second one from the front, where you checking the cam timing from?


so i actually did it four times... the first time i did the very front cylinder, i quickly realized this was the exhaust valve.

I then repeated 3x on the intake valve.

Re: new distributor [Re: MR_P_BODY] #2762894
04/11/20 11:14 PM
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Originally Posted by MR_P_BODY
Not really on either of those issues.. it could reduce some heat.. but on the heat I think you
have another issue.. it could be as simple as the pump not turning fast enough.. do you run
a shroud on the fan.. are the fan blades just in from the edge of the shroud
wave


this is what i am running at this time.

fan shroud.jpg
Re: new distributor [Re: 8urvette] #2762960
04/12/20 10:23 AM
04/12/20 10:23 AM
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You need to answer a few questions.. you checked the cam.. did you use a solid lifter... your big
issue seems to be temp.. did you change any of the pulleys... things dont change if you dont
do anything
wave

Re: new distributor [Re: MR_P_BODY] #2762968
04/12/20 10:48 AM
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I used the hydraulic lifters but removed the rockers, I made a little brace to hold the pushrods in place. The dial indicator sat straight above the pushrod.

I have a set of pulleys that is different, they are a 1 to 1 ratio. I will try them next.
Could it really be that simple?

Re: new distributor [Re: 8urvette] #2762975
04/12/20 10:56 AM
04/12/20 10:56 AM
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You need to use a solid lifter.. on the pulleys 1 to 1 isnt gonna cut it.. you need to get the pump speed up
those pulleys are more for racing than the street
wave

Re: new distributor [Re: MR_P_BODY] #2763050
04/12/20 01:40 PM
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Originally Posted by MR_P_BODY
You need to use a solid lifter.. on the pulleys 1 to 1 isnt gonna cut it.. you need to get the pump speed up
those pulleys are more for racing than the street
wave


okay I have made a solid lifter from an old socket. it measures .900 OD. I welded a cap on it and ground it flat. I marked it so i can verify it is not spinning when doing this.

Here is my question now

Is this advanced on the cam 4*???

cam+4?.jpg
Re: new distributor [Re: 8urvette] #2763053
04/12/20 01:50 PM
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I believe so.. but I never trust those marks.. I have had cams that were way off using them.. I
always degree the cam to make sure its right
wave

Re: new distributor [Re: MR_P_BODY] #2763056
04/12/20 02:01 PM
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i will degree it. I just wanted to make sure this is proper before try.

so if i had it at 114* it should now be 110*?

Re: new distributor [Re: 8urvette] #2763067
04/12/20 02:40 PM
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I've had several timing sets like this one, Cloyes , that the upper cam gear was off a half a tooth, it would ailn straight up and down with any of the crank gear alignments marks. They were all off a half tooth work scope
If yours are that way move the cam gear clockwise so the cam dot is to the left of the crank gear looking at it from the front scope up
One tooth is right at 12 degrees so if you want use the 0 dot for no additional cam advance twocents The reason being some of those timing stes have two camshaft degrees advance built in a nd some don't shruggy
Same thing on the cams on built in advance shruggy
Good luck, you should be able to feel the difference on getting the cam dial in and advanced boogie grin
Let us know how it goes wrench


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: new distributor [Re: Cab_Burge] #2763078
04/12/20 03:00 PM
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Originally Posted by Cab_Burge
I've had several timing sets like this one, Cloyes , that the upper cam gear was off a half a tooth, it would ailn straight up and down with any of the crank gear alignments marks. They were all off a half tooth work scope
If yours are that way move the cam gear clockwise so the cam dot is to the left of the crank gear looking at it from the front scope up
One tooth is right at 12 degrees so if you want use the 0 dot for no additional cam advance twocents The reason being some of those timing stes have two camshaft degrees advance built in a nd some don't shruggy
Same thing on the cams on built in advance shruggy
Good luck, you should be able to feel the difference on getting the cam dial in and advanced boogie grin
Let us know how it goes wrench



i am now getting 118.5* using that 4* mark on the crank gear.

I am going to pull it part and set it to zero and tray again... what the heck????? panic

Last edited by 8urvette; 04/12/20 03:00 PM.
Re: new distributor [Re: 8urvette] #2763080
04/12/20 03:02 PM
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118.5 - 12.0 =106.5 grin scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: new distributor [Re: Cab_Burge] #2763095
04/12/20 03:23 PM
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i pulled it apart set it back at zero.

went through the process 3x and get a variance of .5*.

I now get 108 to 108.5* on cam centerline. 0 according to the cam specs is supposed to be 112*

What ever, if it truly is at 108ISH i am happy and will run it as it is.

Next question, should my intake valve really be starting to open 30* before TDC?

Re: new distributor [Re: 8urvette] #2763163
04/12/20 07:09 PM
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Originally Posted by 8urvette
i pulled it apart set it back at zero.
Next question, should my intake valve really be starting to open 30* before TDC?
Only if you run baby cams whistling
Big cams starting opening @.050 from 40 BTDC to 55 BTDC with no advance shruggy
The LSA affects the intake and exhaust lobes opening and closing, a cam that is ground on a 112 LSA with 250 @ .050 on both lobes will have the intake opening @ .050 further away from TDC than the same lobes ground on a 108 LSA scope shruggy


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Re: new distributor [Re: Cab_Burge] #2763221
04/12/20 10:45 PM
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we will see tomorrow if it fires up and runs. I found an assortment of pulleys at my parents from my old cars.

I have stripped their home of almost all my old car parts to get his running. lucky them, they only had to store my stuff for 20 years before it became useful to them!

Cab and Mr. P Thank you for your help. it has been great. SO FAR....

Re: new distributor [Re: 8urvette] #2763580
04/13/20 06:43 PM
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no change.
I swapped out the water pump pulley that is 1.25" smaller diameter. i think it is something like a 24% change in water pump rpms.

NO FRIGGIN CHANGE.

Timing is at 15 BTDC, its a 180* thermostat. Should I go to a 160*? would it help? could it help?


HELP

help

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