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Author Topic: Help! 51 CJ3A  (Read 102376 times)

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Offline SSG T

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Re: Help! 51 CJ3A
« Reply #285 on: April 23, 2015, 08:39:05 PM »
Haha turned sh** into excrement..... Anyways should I replace the head gasket and stud?/or can I get away with just the stud

Offline athawk11

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Re: Help! 51 CJ3A
« Reply #286 on: April 24, 2015, 11:25:50 AM »
Ouch.

Hopefully the stud is the only thing that is damaged and stripped.

If the new stud doesn't seat tightly, you might have to pull the head and repair the deck surface with a threaded insert.  (Available everywhere)

So, get a new stud and head seal.  Drain a portion of the radiator fluid from the block.  Clean the deck and head while open.  Inspect them for cracks.  Fix bad stud threads in deck if needed.  Install new stud, and new head seal.   Torque the head in the recommended order.  Fire it up.



 
2-1949 CJ3As
1-1946 CJ2A

Offline SSG T

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Re: Help! 51 CJ3A
« Reply #287 on: April 26, 2015, 10:32:48 PM »
Its the threads not the stud. Friend is coming over Tuesday hopefully to fix it. Then hopefully shell be done

Offline SSG T

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Re: Help! 51 CJ3A
« Reply #288 on: April 26, 2015, 10:41:21 PM »
Anyone know the size and pitch for the hellicoil?

Offline SSG T

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Re: Help! 51 CJ3A
« Reply #289 on: April 27, 2015, 08:54:57 PM »
Trying to find the stud pitch but can't find it online anywhere. Not gonna have time to get somewhere to measure it before he comes and he's picking up what he needs on the way. Any of you guys know the pitch!!??!!

Offline athawk11

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Re: Help! 51 CJ3A
« Reply #290 on: April 27, 2015, 09:16:26 PM »
I believe it's 7/16" x 14.

2-1949 CJ3As
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Offline SSG T

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Re: Help! 51 CJ3A
« Reply #291 on: April 27, 2015, 09:52:41 PM »
Thank you brother!

Offline SSG T

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Re: Help! 51 CJ3A
« Reply #292 on: May 03, 2015, 07:07:57 AM »
Alright guys got it fixed! New stud and head gasket seems to have worked. Need a new fuel pump because its spitting out fuel. Also the Generator isn't working. My friends dad says I can get a 1 wire GM alternator, 12 volt coil, new bulbs and I can have it switched over to 12v with out buying the expensive conversion kit. Any truth behind that? As always thanks for the help boys!

Offline SSG T

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Re: Help! 51 CJ3A
« Reply #293 on: May 08, 2015, 05:43:52 AM »
Hey guys,

Ended up ordering a 12v convention kit but I think my timing is still a little off. You can here it miss firing from the exhaust. What should I do?

Offline Ryan_M

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Re: Help! 51 CJ3A
« Reply #294 on: May 08, 2015, 07:11:58 AM »
Do you have a timing light to help dial in the timing? How about a dwell meter or at least a feeler gauge to make sure the points are adjusted correctly prior to setting the timing?
Current:
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'51 CJ3A
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East Coast Wi

Offline SSG T

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Re: Help! 51 CJ3A
« Reply #295 on: May 08, 2015, 07:14:06 AM »
Nope unfortunately. Some one said I can loosen up the distributor and listen?

Offline Oilleaker1

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Re: Help! 51 CJ3A
« Reply #296 on: May 08, 2015, 08:19:42 AM »
A timing light is the best, but a old rule of thumb for on the road fixes, is loosen the clamp on the distributor and rotate it in the direction of increased idle. That's advancing. Rotate it for the fastest idle without faultering. Then retard the timing 100 RPM's and you will be close. If it sputters, try adjusting the carb mixture screw to smooth the idle out to the best. If that doesn't work, you may need to do a valve adjustment. One or more may be tight, or not enough clearance. John

Offline athawk11

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Re: Help! 51 CJ3A
« Reply #297 on: May 08, 2015, 01:24:15 PM »
Leaker,
What are your doing over here...slummin it?  ;D

Sarge, the Leaker speaks the truth, but I'll be honest, I don't have a timing light either.

The entry from the 2A Page, done by Sean is excellent.  It's called the Geico Methoud.  (you know...It's so easy, even a cave man can do it.)

I rely solely on this approach.  You may find it very helpful...

http://www.thecj2apage.com/forums/l134-ignition-timing_topic13819.html

Tim

2-1949 CJ3As
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Offline Bob W

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Re: Help! 51 CJ3A
« Reply #298 on: May 08, 2015, 03:07:53 PM »
A regular test light can be used to set the timing too. Connect the test light between ground and the distributor side of the coil (-). Use Sean's "Geico" method of setting the crankshaft at 5 degress BTDC and then with the key on turn the distributor as described. When the test light lights up the points have just opened and you can tighten down the adjustment bolt.
Bob W

Offline Oilleaker1

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Re: Help! 51 CJ3A
« Reply #299 on: May 09, 2015, 08:13:39 AM »
I came over here to see what "Hawky" was doing. I have a 3A too you know. I don't descriminate when it comes to Jeeps---LOL.  8-) Oilly