MoparFins

Techical Discussions => Tech- - Engine => Topic started by: Leaburn Patey on July 23, 2010, 06:48:01 PM

Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 23, 2010, 06:48:01 PM
My good buddy Dougy just got his freshly rebuilt 360 home today.
He needs to know what position the oil pump shaft/dizzy gear should be in.
motor has been set to TDC.
I know that B/RB has the slot for the dizzy aligned with the center of the cam as you look at it.
Is the small block any different??
Need to know so we avoid bent pushrods/valve upon initial startup.
Thanks
CBarge2010-07-26 20:47:14
Title: LA dizzy drive gear/motor install update
Post by: Guests on July 23, 2010, 09:31:47 PM
Standing in front of the engine and looking to the rear over the carb, the vacuum advance should be to the left, so it can turn from the 9:30 down to the 7:00 area. As far as the rotor/oil pump goes, Mopars are a hex, so, line up the timing mark and drop the distributor into the block and where the cap crown lines up is where the number one sparkplug goes. The crown it is under is the number one, no matter what anyone says, it doesn't have to be in any specific spot physically (like a SBC for an oil hole to line up for oiling the shaft), but, because it is a hex, you can also adjust it wherever you want without fear of damage.
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 24, 2010, 06:31:21 AM
I may be missing something here.
Pardon my ignorance.
I am talking about the slot in the  drive gear for the dizzy.
Does it point to #1???
Does the flat slot end of t he dizzy match up to #1 on  the cap??
 
Title: LA dizzy drive gear/motor install update
Post by: Rich on July 24, 2010, 07:20:53 AM
here is a pic from an old "Motors Manual":
(http://www.moparfins.com/forum/attachments/171/1BjkIS-de23e8a39f03052a04582ab247698409.jpg)


Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 24, 2010, 07:30:26 AM
So,the slot is in line with the camshaft and cylinder number one plug wire on the cap.
OK..Thanks
 
Title: LA dizzy drive gear/motor install update
Post by: Steve on July 24, 2010, 08:50:19 AM
The gear should be pointing towards Cylinder #1 Lea.  Krauts drawing is a tad off .  The gear doesn't matter which end is pointing at the cylinder.  It's just the disty that can me out 180*POLARACO2010-07-24 13:51:05
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 24, 2010, 02:21:06 PM
Got it.Slot in gear should be pointing to #1.

Title: LA dizzy drive gear/motor install update
Post by: Steve on July 24, 2010, 05:05:43 PM
Yup
Title: LA dizzy drive gear/motor install update
Post by: Stan Paralikis on July 25, 2010, 02:37:23 AM
Depends on which way you're facing, doesn't it.....


(http://www.moparfins.com/forum/smileys/smiley2.gif)

Title: LA dizzy drive gear/motor install update
Post by: Rich on July 25, 2010, 03:19:15 PM

Quote from: POLARACO
The gear should be pointing towards Cylinder #1 Lea.  Krauts drawing is a tad off .  The gear doesn't matter which end is pointing at the cylinder.  It's just the disty that can me out 180*

(http://www.moparfins.com/forum/smileys/smiley10.gif) ....but it is pointing at #1  (sorry about my shaky old hands !!!!!!!)

Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 26, 2010, 03:24:24 PM
Got it pointing at #1.
At TDC,it actually points to the front of the engine almost paralell to the centerline of the cam.
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01650.jpg)
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 26, 2010, 03:41:29 PM
Here are some pics of yesterday's install.
Truck is from Oklahoma,and is in very nice shape.
The rebuild was done after diagnosing a thrust bearing wore out and the crank was walking out under load and spewed oil from the rear main seal.
No crate here,just the original 360 in more recycle friendly shrinkwrap.
CBarge2010-07-26 20:42:08
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 26, 2010, 03:44:35 PM
Purdy fresh engine...
Rebuilt by Ajax Engines & Auto Centre.
http://www.yellowpages.ca/bus/Ontario/Ajax/Ajax-Engines-Auto-Centre/56173.html (http://www.yellowpages.ca/bus/Ontario/Ajax/Ajax-Engines-Auto-Centre/56173.html)
Yes they are factory chrome valve covers he scarfed off an old B250 van in a local scrap metal yard.
The 4bbl intake is a 69 340 piece that has been port matched to the 360 heads.
Crank had to be cut and oversized bearings were installed.Doug went with a Comp 268 cam with 454 lift,flat top pistons,bored 30 over and square deck the block.He has 3.23 gears,duals and 28" tall rear tire.Should be a good truck for the street and highway.
CBarge2010-07-26 21:23:01
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 26, 2010, 03:48:34 PM
But I would not install a purdy engine in a dirty bay..Not me,no,no..
CBarge2010-07-26 20:53:18
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 26, 2010, 03:56:35 PM
After I was done wasting time..
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01645.jpg)
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 26, 2010, 04:11:32 PM
No down to business getting  the lump back into it's hole..
Mated the 727 to the motor,and in she went.
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01655.jpg)
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01658.jpg)
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01659.jpg)
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01660.jpg)
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 26, 2010, 04:26:34 PM
Doug begged for my help so I caved and spent 12 hours at his place.
Where you saw the motor sitting in front of the truck is where it landed.He has no garage and wanted the motor inside the engine bay out of the weather.
Worst part is over now.Doug can finish hooking thing back up and eventually turn the key for the first time.
Title: LA dizzy drive gear/motor install update
Post by: Ken on July 26, 2010, 04:54:46 PM
Purdy truck *drooooooooools*

Title: LA dizzy drive gear/motor install update
Post by: Steve on July 26, 2010, 06:23:00 PM
Quote from: CBarge
Got it pointing at #1.
At TDC,it actually points to the front of the engine almost paralell to the centerline of the cam.

You're off a tooth
Title: LA dizzy drive gear/motor install update
Post by: Stan Paralikis on July 27, 2010, 04:12:57 AM


You're off a tooth[/QUOTE]
(http://www.countrygirl.com.au/product_images/z/10226e4__30181_thumb.jpg)

Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 27, 2010, 11:43:11 AM
(http://www.moparfins.com/forum/smileys/smiley36.gif)(http://www.moparfins.com/forum/smileys/smiley36.gif)
Title: LA dizzy drive gear/motor install update
Post by: Steve on July 27, 2010, 05:59:37 PM
Quote from: Commando1
Quote from: POLARACO

You're off a tooth
 
Well he is!  That could be a problem when he goes to turn the disty
Title: LA dizzy drive gear/motor install update
Post by: Steve on July 27, 2010, 06:01:31 PM
Quote from: CBarge
(http://www.moparfins.com/forum/smileys/smiley36.gif)(http://www.moparfins.com/forum/smileys/smiley36.gif)
 
You need to go left one tooth.  I know it's a pain, but the V advance could be hitting the firewall
Title: LA dizzy drive gear/motor install update
Post by: Rich on July 28, 2010, 05:51:15 AM


Quote from: CBarge

The rebuild was done after diagnosing a thrust bearing wore out and the crank was walking out under load and spewed oil from the rear main seal.


Thrust bearing wear is another problem with modern oils without ZDDP - I had a 2005 PT Cruiser that did the same thing - except it was the front seal that kept popping out and gushing oil.
krautmaster2010-07-28 10:52:02
Title: LA dizzy drive gear/motor install update
Post by: Steve on July 28, 2010, 06:10:02 AM
It's also a good indication of a bad torque converter
Title: LA dizzy drive gear/motor install update
Post by: Stan Paralikis on July 28, 2010, 08:53:17 AM
I'm hearing to many horror stories about these ZDDP-less oils...(http://www.moparfins.com/forum/smileys/smiley20.gif)
Title: LA dizzy drive gear/motor install update
Post by: Snotty on July 28, 2010, 09:18:04 AM
That little small block looks good!  Nice work Gentlemen.
Title: LA dizzy drive gear/motor install update
Post by: Steve on July 28, 2010, 09:38:53 AM
Sheesh  You didn't say that about my Magnum
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 28, 2010, 02:15:47 PM
Quote from: POLARACO
Sheesh  You didn't say that about my Magnum
(http://yahoofreak.com/animated%20emoticons/Funny%20Animated%20Emoticons/stick%20with%20poke.gif)
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on July 28, 2010, 02:25:00 PM
We  installed the motor with the dizzy already in place.
Actually,it is not against the firewall.The vacuum advance is between 8 and 9 o'clock with room to spare to set the timing.
The rotor is at cylinder #1 terminal at the distributor cap and crank is at TDC.
Doug was smart enough he marked the plug wires prior to tearing down the motor and everything is in line.
kEEP IN MIND THERE IS A COMP CAMS 268H in there--not a factory cam.
I will move it back a tooth,but I may have to shift the plug wires back by one.
I am going back this weekend since the truck is almost an hour away from my house.
CBarge2010-07-28 19:30:22
Title: LA dizzy drive gear/motor install update
Post by: Steve on July 28, 2010, 03:34:08 PM
Ahhhh   If it runs, that's what matters.  As long as you have the room
Title: LA dizzy drive gear/motor install update
Post by: Snotty on July 28, 2010, 04:11:50 PM
Quote from: POLARACO
Sheesh  You didn't say that about my Magnum


 
I did too, and you're yet to compliment the Gremlin.
Title: LA dizzy drive gear/motor install update
Post by: Steve on July 28, 2010, 04:24:10 PM
I believe I did buddy. . .POST JUMPER!
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on August 01, 2010, 04:19:18 AM
Quote from: POLARACO
Ahhhh   If it runs, that's what matters.  As long as you have the room
It runs.Fired it up yesterday.Ran it for about 15 minutes and shut it down when it started to get hot.
Cooled down for 30 minutes and fire up again,set  the timing.It was a little retarded which explains the overheating.
Sounds good,a bit of a lumpy idle with the cam,and still pull 18 inches of vacuum.
Still need to do fine tuning but that can be tricky with a fresh,tight motor.
Everything needs to get settled in.
One minute it idles perfect,than almost stalls,hit  the gas and then idles high,then drops and stalls.
I told doug to drive it to put a load on the engine to help seat the rings.He has some oil smoke coming out of the exhaust,but it was gradually going away.
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01664.jpg)
Title: LA dizzy drive gear/motor install update
Post by: Stan Paralikis on August 01, 2010, 04:21:21 AM
No go kaboom yet?
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on August 01, 2010, 04:27:21 AM
Me
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01669.jpg)
Doug MacDonald,with his family and my wife Gerri in the background
CBarge2010-08-01 09:27:59
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on August 01, 2010, 04:33:18 AM
Doug,son Mike,and one of his twin daughters.
I don't know which one--I can't tell them apart!LOL! Sorry Doug!
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01668.jpg)
Title: LA dizzy drive gear/motor install update
Post by: Leaburn Patey on August 01, 2010, 04:50:20 AM
I am going to have to invest in a better timing light with the degree button on the back.
Factory timing calls for TDC,but with the bigger cam,she likes running at 10 degress BTDC
I beleieve there is still room for improvement.
BTW,Steve the vacuum pod had to come forward so it did not hit the firewall.
(http://i51.photobucket.com/albums/f385/68Cbarge/dougs%20truck/DSC01670.jpg)