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Author Topic: UPDATE!. .It's time for Polaraco. . I'm goin in  (Read 6863 times)

Stitcherbob

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UPDATE!. .It's time for Polaraco. . I'm goin in
« Reply #30 on: March 24, 2010, 04:28:02 PM »


Quote from: POLARACO
Yeah Bob. . .   I agree.

And you wanted me to paint it silver


that was before I knew you had those maggy valvecovers!

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Steve

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UPDATE!. .It's time for Polaraco. . I'm goin in
« Reply #31 on: March 24, 2010, 05:11:59 PM »






 
I have to say it looks a heck of allot cleaner and organized with the blue then the black
 
 
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Leaburn Patey

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UPDATE!. .It's time for Polaraco. . I'm goin in
« Reply #32 on: March 24, 2010, 05:20:07 PM »

Looks good!! Almost ready to fire up??
make sure you video the fire up if you can

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Stan Paralikis

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UPDATE!. .It's time for Polaraco. . I'm goin in
« Reply #33 on: March 25, 2010, 04:03:55 AM »

Suit up, men...
 

 

Stewart Van Petten

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UPDATE!. .It's time for Polaraco. . I'm goin in
« Reply #34 on: March 25, 2010, 06:43:52 AM »

It sure looks a lot different than when it rolled off of the line Steve! A video is always cool when you first fire them up. I will be interested in hearing it run...especially interested in how your cam choice will work. Did your last engine run a roller cam? If not you are going to love the difference! She should snap pretty good off the line with your combination.


 
Good luck! Hope you don't need the bomb squad!
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Snotty

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UPDATE!. .It's time for Polaraco. . I'm goin in
« Reply #35 on: March 25, 2010, 09:26:00 AM »

Yes, agreed on the video.
 
You can see the first firing of our Gremlin in the Gremlin Update thread.
 
(Total plug, I have no shame....)
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Steve

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UPDATE!. .It's time for Polaraco. . I'm goin in
« Reply #36 on: March 25, 2010, 12:25:34 PM »

forgetaboutit
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Steve

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« Reply #37 on: March 25, 2010, 01:11:35 PM »

No Start.  It's possible I have the wrong pushrods
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Steve

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« Reply #38 on: March 25, 2010, 04:12:52 PM »

My ego is deflated and this is a first for me after all the engines I have done.
 
I have spark and fuel, but the engine spins over too fast like the valve timing is off.    
 
Can't find my compression gauge, what else is new.  I just saw it a few weeks ago here somewhere.  Between myself and all my little helpers, this place is a disaster again.
 
Ed, I'm waiting for you to call me
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Stewart Van Petten

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« Reply #39 on: March 25, 2010, 04:50:47 PM »

Take a deep breath and relax for a bit...it will help you think about the problems. Maybe take the time to reorganize your tools. Is it possible your distributor is set wrong? Did you use adjustable rocker shaft arms for this build? You mention that you think you may have used the wrong pushrod length...shorter ones required with the roller cam? If it makes correct compression that will narrow your trouble shoot list down a lot.
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Steve

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« Reply #40 on: March 25, 2010, 05:16:21 PM »

Nope. . .We checked it, and rechecked it over and over.  Makes no sense. 
 
I installed the gear and chain and can vividly recall what I did.  A budy of mine, who is real good, stopped by and he started to fool with it and confirmed I had the chain right.  Dots matched, intake and exhaust were closed.  Then he confirmed I had compression as he reset the motor to TDC.
 
Sunday, I set the pump gear and distributor.  Pump gear points at #1 and the rotor points to #1 on the breaker plate (Remember, this is EFI)  Turned the engine one turn and the disty was 180* from setpoint, and #1 exhaust valve was open.
 
I'll tell ya, it spins like it has no compression.  I think I know where my compression gauge is, I have to go over there and beat the Shtuff outa him for not bringing it back.  Doint that at 10:00 when he gets home from work.
 
When I take a plug out and put my finger over the hole, I am getting a push, but it doesn't seem like allot.  The vacuum gauge flutters slightly and you can feel vacuum on the intake.
 
It has three of us, all of whom have done numerous engines, baffled.
 
I'm watching NCIS.  If it doesn't rain, I'll stick the gauge in #1 and see what I am getting.
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Stewart Van Petten

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« Reply #41 on: March 25, 2010, 08:59:51 PM »

Your short duration roller cam should make lots of compression. I was going to suggest you put your finger over the spark plug hole! lol Does it have adjustable rocker arms? You could check the preload on the lifters. If the pushrods are too long it would open the valves all the time would it not? Especially if you are using non adjustable rocker arms.
 
I recall normal lifter preload is around .030" give or take .010". I had to figure out my pushrod length after I assembled my engine because of some retrofits . More on that later if you need to learn how.
 
Need to know if it is making proper compression.
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Stitcherbob

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« Reply #42 on: March 25, 2010, 09:22:48 PM »


I'll bet you'll have to put a degree wheel on it and determine the correct cam phasing for your aftermarket camshaft....lining up the dots doesn't always mean that it's installed right per the manufacturer's recommendations......

http://flag.blackened.net/mopar/camchart.html

http://www.carcraft.com/howto/116_0701_how_to_degree_a_camshaft/index.html

http://cranecams.com/pdf/803.pdf



stitcherbob2010-03-26 01:33:50
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Stan Paralikis

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« Reply #43 on: March 26, 2010, 05:09:40 AM »

Back-to-basics engine troubleshooting 101:
 
Follow the spark trail.  Everything 110% copastetic?
Damn EFI.  I know zip about them.  Check your sensor/pick-up/ whatever you call it thingamabob.
 
 

Steve

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« Reply #44 on: March 26, 2010, 07:45:03 AM »

Quote from: Rockwerx
Your short duration roller cam should make lots of compression. I was going to suggest you put your finger over the spark plug hole! lol Does it have adjustable rocker arms? You could check the preload on the lifters. If the pushrods are too long it would open the valves all the time would it not? Especially if you are using non adjustable rocker arms.
 
I recall normal lifter preload is around .030" give or take .010". I had to figure out my pushrod length after I assembled my engine because of some retrofits . More on that later if you need to learn how.
 

Yeah Stewart.  I checked the preload again.  At least 30.  I primed the heck out of the  enigne while spinning it through to pump up the lifters some more.  Plus the lifters soaked, holes up for over two weeks.  That aint it.  I was wrong.
 
Ed, Dana44, and I talked for about and hour about it last night.  Thank you ED!  The only parts I did not reuse from the 5.2 were the injectors.  I used the new aledged new ones in the beer barrel.  It's possible they are no good at all.  But I know the fuel rail is full of fuel.
 
Ed seems to think the low compression is due to the fact this is a brand new motor.  could be, but when hand turning, it felt more dramatic.  
 
POLARACO2010-03-26 11:46:43
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