Motor Going?? PLEASE HELP
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Would this hole be blowing air, or sucking at all, tho where i can start the motor and feel around for it?
Senior User
Joined: Dec 2007
Posts: 294
Likes: 0
From: Noblesville,IN
I had a donut gasket on my '64 Galaxie leak after the bolts loosened up and it didn't sound like anything exhaust at all. It sounded like whistling and grinding like huge saw teeth going across metal. I think that if you fix that part or plug where it went (whichever) you'll be all good.
Post Fiend
Joined: Nov 2008
Posts: 23,849
Likes: 20
From: McKenzie River
You should be able to get at the bolts on the back of the head with a end wrench, but its damn tight and uncomfortable place to work. Use a step ladder, you might even need a mirror to see what your doing back there........good luck!
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Can anyone tell me what side head (passanger or driver facing truck) this check valve would be? I've been feeling around and haven't been able to spot/feel anything in the heads where this hole might be...
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Update
I finally got the port plugged and the rusted out pieces on top of the motor taken care of... The noise is still there. The raspy sounding noise is audible from between the cab and bed. The motor is def. not the culprit on this one. Checked the smog pump in case it messed up, rotated fine and the smog equipment is still operable. Trans shouldn't be the problem here because at a sit still with the motor revved a little, the noise can be heard. It's only there when the RPM's are around 2500-3000 rpms and higher. Also, the truck feels like it is lacking power. I really hope i didnt damage anything by driving the distance with the crossover pipe off. Please, any suggestions will be appreciated.
Posting Guru
Joined: Dec 2008
Posts: 1,226
Likes: 5
From: Rusty, Maine
try taking off the serp. belt and rev it just to rule out any engine accessories. Not for long though, or you'll over heat it.
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Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
Thanks for the post. Ill try this tomorrow when its daylight out.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
You need a small mirror to see the tube at the back, and yes you could have damaged the motor running it this way.. unfortunately. You need to remove the tube completely and plug the holes in the heads, I used bolts and copper washers to do this on the motor below....
IN the pic below you can see the tube on the back of this nasty piece of work..
IN the pic below you can see the tube on the back of this nasty piece of work..
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
What could have happened to damage the motor with this pipe disconnected. Its hard to tell how long its actually been off.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
It will cause the motor to run excessively lean which leads to detonation.. that's the stumbling and vibration you feel under load, and if this goes on long enough it can result in piston damage and lower compression. I had a 5.0 that developed a serious misfire and stumble that would show up as soon as the engine warmed up if you were highway driving, around town it wasn't as noticable. It never threw a code and eventually I figured out the tube at the back of the motor had rotted out. Once the tube was replaced the stumbling and misfire completely disappeared, but the damage was already done, the engine had suffered permanent and significant power loss.
Elder User
Joined: Nov 2008
Posts: 639
Likes: 0
From: houston
If it was the tube going to the tail pipe it was just blowing air out the end of it instead of stoking the cats when the air pumps diverter valve kicked in. But you might want check it out further.I hate that emissions stuff too!
Thread Starter
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Cargo Master
Joined: Oct 2008
Posts: 2,308
Likes: 1
From: Elyria, OH
But another thing i wanted to ask about....
This lil' dohicky isn't blowing air like it used to. Stoped about a week ago when the raspy noise was being heard. Maybe they are connected somehow? Bad smog pump? I rotated the pump and it felt free and had no noises really...