Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
multiple balancer timing marks #885740
12/22/10 09:19 PM
12/22/10 09:19 PM
Joined: Feb 2010
Posts: 2,806
Northern NJ
StukaJU87 Offline OP
master
StukaJU87  Offline OP
master

Joined: Feb 2010
Posts: 2,806
Northern NJ
My '68 440 engine has 4 marks on the balancer. When I bought the motor the seller had pulled the distributor. I used my thumb in the #1 spark plug hole and turned the motor to TDC.

How am I supposed to know which mark is "the" mark?


Scott

1969 Super Bee, 383/4 speed


Re: multiple balancer timing marks [Re: StukaJU87] #885741
12/22/10 09:44 PM
12/22/10 09:44 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
it will be the one cut all the way across the damper

the others should only be 3/4 ways across

use a screw driver to feel the top of the piston and rock it back and forth to get TDC

check alinement phase of the itermed shaft slot for dist flat and make sure it points rotor at # 1 term on cap

it turns CCW on the dist

Re: multiple balancer timing marks [Re: scratchnfotraction] #885742
12/22/10 09:49 PM
12/22/10 09:49 PM
Joined: Feb 2010
Posts: 2,806
Northern NJ
StukaJU87 Offline OP
master
StukaJU87  Offline OP
master

Joined: Feb 2010
Posts: 2,806
Northern NJ
Quote:

it will be the one cut all the way across the damper

the others should only be 3/4 ways across




I am going to check this tomorrow, Mike. I am thinking they all go across but I may be mistaken. Thanks for the info.


Scott

1969 Super Bee, 383/4 speed


Re: multiple balancer timing marks [Re: StukaJU87] #885743
12/22/10 10:16 PM
12/22/10 10:16 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
if they do go all the way across,then check to make sure #1 has both valves closed and piston at the tdc..use the mark that lines up on 0*

mine has the bullet nose damper for cast crank

IIRC you have a thin one

Re: multiple balancer timing marks [Re: scratchnfotraction] #885744
12/22/10 10:27 PM
12/22/10 10:27 PM
Joined: Feb 2010
Posts: 2,806
Northern NJ
StukaJU87 Offline OP
master
StukaJU87  Offline OP
master

Joined: Feb 2010
Posts: 2,806
Northern NJ
Yeah, mine is the thin one. Why would they put all these marks on the balancer?

The one on my 383 has only one mark.


Scott

1969 Super Bee, 383/4 speed


Re: multiple balancer timing marks [Re: StukaJU87] #885745
12/22/10 10:44 PM
12/22/10 10:44 PM
Joined: Jan 2003
Posts: 32,934
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
I Win

Joined: Jan 2003
Posts: 32,934
Grand Prairie,Texas
Because your 383 has a pointer that has the before and after tdc degrees on it and your 440 has a pointer and the degrees are on the balancer,

Re: multiple balancer timing marks [Re: stumpy] #885746
12/22/10 10:55 PM
12/22/10 10:55 PM
Joined: Feb 2010
Posts: 2,806
Northern NJ
StukaJU87 Offline OP
master
StukaJU87  Offline OP
master

Joined: Feb 2010
Posts: 2,806
Northern NJ
Quote:

Because your 383 has a pointer that has the before and after tdc degrees on it and your 440 has a pointer and the degrees are on the balancer,


Well, the 440 pointer has before/after TDC degrees on it too. That is part of what is confusing me.


Scott

1969 Super Bee, 383/4 speed


Re: multiple balancer timing marks [Re: StukaJU87] #885747
12/22/10 11:09 PM
12/22/10 11:09 PM
Joined: Mar 2007
Posts: 181
Stow,Ohio
RBSat66 Offline
member
RBSat66  Offline
member

Joined: Mar 2007
Posts: 181
Stow,Ohio
Could the 4 marks have something to do with setting the valves? As in certain marks should have different valves open.

Re: multiple balancer timing marks [Re: RBSat66] #885748
12/22/10 11:25 PM
12/22/10 11:25 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
magnetic wand for osilascope machine-for timeing/settings goes in the u-shape on the timing tab(on my 78 440)and use the other lines/marks,the balencer can have #s and lines with crankshaft * increments,and may very well have something to do with valve lash

the are not stamped very deep in the damper either

most times they are painted over and you dont notice them,seen them on a lot of SB dampers

usally only one full line is cut across the damper to mark 0*TDC

you can referance the throw on the crank by the keyway in the end of crank with damper off,same with cam and doing a t-chain


Last edited by scratchnfotraction; 12/22/10 11:30 PM.
Re: multiple balancer timing marks [Re: scratchnfotraction] #885749
12/22/10 11:59 PM
12/22/10 11:59 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Quote:

usally only one full line is cut across the damper to mark 0*TDC:


but if all 4 do go across I'd start from scratch(n) & bump the starter relay until you feel compression on your thumb on #1 & go from there


live every 24 hour block of time like it's your last day on earth
Re: multiple balancer timing marks [Re: RapidRobert] #885750
12/23/10 12:46 AM
12/23/10 12:46 AM
Joined: Oct 2010
Posts: 606
Montana
Y
Yancy Derringer Offline
mopar
Yancy Derringer  Offline
mopar
Y

Joined: Oct 2010
Posts: 606
Montana
My freekin' GAWUDWUDEAD!!!


Just get or make a POSITIVE STOP and FIND absolutely correct tdc:



Remove the ground cable for safety, determine that the piston is down a ways, and put the stop in no1

Gently wrench the engine around, until it stops, then make a temporary mark on the wheel right under the TDC mark on the timing tab.

Do the same CCW.

Now you'll have two temporary marks some distance apart. True TDC will be halfway between the two, and if any of the marks on the wheel are still accurate, that's where one of them will be.

Re: multiple balancer timing marks [Re: Yancy Derringer] #885751
12/23/10 10:11 AM
12/23/10 10:11 AM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
and DONT FORGET TO REMOVE THE POSITIVE PISTON STOP before cranking it over with starter..DAMHIK


Re: multiple balancer timing marks [Re: scratchnfotraction] #885752
12/23/10 10:55 AM
12/23/10 10:55 AM
Joined: Feb 2010
Posts: 2,806
Northern NJ
StukaJU87 Offline OP
master
StukaJU87  Offline OP
master

Joined: Feb 2010
Posts: 2,806
Northern NJ
Quote:

and DONT FORGET TO REMOVE THE POSITIVE PISTON STOP before cranking it over with starter..DAMHIK




No chance of that happening as the motor is still out of the car.


Scott

1969 Super Bee, 383/4 speed


Re: multiple balancer timing marks [Re: StukaJU87] #885753
12/23/10 12:25 PM
12/23/10 12:25 PM
Joined: Aug 2005
Posts: 11,543
chicagoland,usa
B
buildanother Offline
I Live Here
buildanother  Offline
I Live Here
B

Joined: Aug 2005
Posts: 11,543
chicagoland,usa
You can use a soft drink straw if you don't have the fancy stop tool, or even the red snorkel tube off your brakeleen can.

Re: multiple balancer timing marks [Re: buildanother] #885754
12/23/10 01:51 PM
12/23/10 01:51 PM
Joined: Oct 2010
Posts: 606
Montana
Y
Yancy Derringer Offline
mopar
Yancy Derringer  Offline
mopar
Y

Joined: Oct 2010
Posts: 606
Montana
Quote:

You can use a soft drink straw if you don't have the fancy stop tool, or even the red snorkel tube off your brakeleen can.




Not a chance. What you are trying to accomplish, here is that the marks are ACTUALLY ACCURATE. Sticking sticks, screwdrivers, straws, nails, coat hangers, or any other imaginable object in there is a complete waste of time.

Re: multiple balancer timing marks [Re: Yancy Derringer] #885755
12/23/10 10:12 PM
12/23/10 10:12 PM
Joined: Jul 2003
Posts: 6,167
Maryland
GO_Fish Offline
master
GO_Fish  Offline
master

Joined: Jul 2003
Posts: 6,167
Maryland
I agree, proper use of a mechanical piston stop and then measurement is the ONLY accurate way to determine TDC and confirm the accuracy of the timing marks on the balancer.


Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph
Re: multiple balancer timing marks [Re: StukaJU87] #885756
12/23/10 11:15 PM
12/23/10 11:15 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Quote:

When I bought the motor the seller had pulled the distributor. I used my thumb in the #1 spark plug hole and turned the motor to TDC.


I'm assuming that you are not blueprinting exact TDC on this deal. What you said; Bump it from the relay until you feel compression building then w a breaker bar continue to hand turn it CW until the marks are at 10BTDC then install dist/rotate housing to where, The vac can is roughly where you want it/the rotor is under (or close to) #1 wire/the closest reluctor blade is dead even w the magnet slot/lightly snugged dist holddown so you can time it when it fires.


live every 24 hour block of time like it's your last day on earth
Re: multiple balancer timing marks [Re: RapidRobert] #885757
12/24/10 12:13 AM
12/24/10 12:13 AM
Joined: Feb 2010
Posts: 2,806
Northern NJ
StukaJU87 Offline OP
master
StukaJU87  Offline OP
master

Joined: Feb 2010
Posts: 2,806
Northern NJ
No, I am not blueprinting anything. I checked today and there are indeed 4 marks on the balancer and all go all the way across.

If you view from the front of the motor starting with the mark furthest left:

1st mark is bolder (slightly wider and deeper) than the other three. Moving right there is about a 1 3/4" space until the next mark. Then about 5/8" to the next and maybe 1" to the last. (those are all guesses) I can get the exact measurements tomorrow if you think that will help. The three that are closest together are all uniformly thinner and less deep grooves.

If I had to guess, I'd say the bold line is it. I think the positive stop may be my only answer.


Scott

1969 Super Bee, 383/4 speed


Re: multiple balancer timing marks [Re: StukaJU87] #885758
12/24/10 12:31 AM
12/24/10 12:31 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
Quote:

I think the positive stop may be my only answer.


definitely not 90 deg valve timing marks . Never seen ones like you describe. Yeah sounds as said you need the TDC stop.


live every 24 hour block of time like it's your last day on earth
Re: multiple balancer timing marks [Re: RapidRobert] #885759
12/24/10 01:08 AM
12/24/10 01:08 AM
Joined: Feb 2010
Posts: 2,806
Northern NJ
StukaJU87 Offline OP
master
StukaJU87  Offline OP
master

Joined: Feb 2010
Posts: 2,806
Northern NJ
Quote:

Quote:

I think the positive stop may be my only answer.


definitely not 90 deg valve timing marks . Never seen ones like you describe. Yeah sounds as said you need the TDC stop.


Robert, I will take pics and measurements tomorrow just to let you see what I am dealing with.


Scott

1969 Super Bee, 383/4 speed


Page 1 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1