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-   -   Just venting a bit (https://67-72chevytrucks.com/vboard/showthread.php?t=592310)

Chevys10dr 08-12-2013 12:27 AM

Just venting a bit
 
Well Arrrrrrrrrgggggggggg,
I think I just ruined a perfect rebuilt ZZ4 engine. Ready to do the break-in today, primed oil pump, setup timing to 10 degrees, primed the fuel bowl, and everything by the book, she didn't even try to start, after the 4th crank I get a high pitch squeal like metal on metal from the back of the block. Looks its back to the old engine that I took out because of burning alot of oil.

jons70 08-12-2013 12:34 AM

Re: Just venting a bit
 
Are you sure its starter not engaging the ring gear properly?

jons70 08-12-2013 12:37 AM

Re: Just venting a bit
 
If the solenoid is week, it might not engage the bendix drive properly or the bendix drive could be bad or the started isn't aligned properly

Chevys10dr 08-12-2013 01:24 AM

Re: Just venting a bit
 
Thanks Jon, just checked all that, but everything looks on the starter side of things.

Chevys10dr 08-12-2013 01:29 AM

Re: Just venting a bit
 
what's got me pissed is that the motor wouldn't even try to fire up there was on little backfire and that was it, it just keeps spitting fuel up in the air, I tried advancing and retarding and still getting the same results. AAAAAAAAAAHHHHHHHHHHHH
lol

jons70 08-12-2013 01:34 AM

Re: Just venting a bit
 
You must have the distributor out 180 degrees. Easy mistake and very common. Who put the motor together?

Chevys10dr 08-12-2013 01:41 AM

Re: Just venting a bit
 
Short block was built by a pretty reputable builder in manitoba, flipping the dizzy 180 will be the next thing I will be checking tomorrow after work.

jons70 08-12-2013 01:56 AM

Re: Just venting a bit
 
I would try rotating the distributor 180 first. As for the squealing noise, I'm sure the starter is to blame, just looking won't tell you whats wrong. I'm assuming that it makes this squealing when you hit the starter right?

Chevys10dr 08-12-2013 02:07 AM

Re: Just venting a bit
 
Thanks again Jon, After reading a few articles it is a good chance the dizzy is out 180, back at her tomorrow after work.

jons70 08-12-2013 02:16 AM

Re: Just venting a bit
 
Good luck with it and don't get discouraged, there's always a solution. Sometimes it's best to walk away for a while, ask for second opinions and the solution becomes clear

Keep us posted on your progress

bobs409 08-12-2013 06:53 AM

Re: Just venting a bit
 
Do you have a flywheel dust shield on? (particularly a manual trans but possibly an auto will do it too)

I had one that was rubbing the crank flange and made a hell of a metal squeel/screetch when I fired up my first 454. Scared the hell out of me.

TBONE1964 08-12-2013 07:01 AM

Re: Just venting a bit
 
Quote:

Originally Posted by jons70 (Post 6216231)
good luck with it and don't get discouraged, there's always a solution. Sometimes it's best to walk away for a while, ask for second opinions and the solution becomes clear

keep us posted on your progress

^2

Tinkermc 08-12-2013 08:39 AM

Re: Just venting a bit
 
Please let us know what you find it could help someone else at a later date

slow-1 08-12-2013 09:29 AM

Re: Just venting a bit
 
Quote:

Originally Posted by bobs409 (Post 6216301)
Do you have a flywheel dust shield on? (particularly a manual trans but possibly an auto will do it too)

I had one that was rubbing the crank flange and made a hell of a metal squeel/screetch when I fired up my first 454. Scared the hell out of me.

Me too on my 350 about a month ago...auto will definately make some disasterous sounding noises too.

I have also done the 180 out thing...it will spit and sputter just enough to give you hope, but it will never start that way...it will catch your Q-Jet on fire though:devil:.


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