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440 new build problems

74roadrunner440

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karlsruhe nd
i just put my new motor back in after the cam bolt cam loose and runing all the bearings but noW i havE a new can of worms to deal with my motor now is over fueling and missing and has a eratick idle and no power took carbs off and opened them up and seem fine but there was fuel and carbon in the planes still from last night timming semmes to be on i put in #1 and timming marks seem right on and so does the dist but i do get a ocasional back fire and engine when started floods out untill i clear it out and when finaly got it started had to increase idle dramaticaly to keep running and now from idle over 1700 rpms ive never herd of this before and realy lost now i did instal a grear drive unit for timming instead of chain iknow this is alot of stuff to happen and also my headers also got warm and disored the coateng the werend red but did get hot and help would be greatly appreciated
 
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i just put my new motor back in after the cam bolt cam loose and runing all the bearings but noW i havE a new can of worms to deal with my motor now is over fueling and missing and has a eratick idle and no power took carbs off and opened them up and seem fine but there was fuel and carbon in the planes still from last night timming semmes to be on i put in #1 and timming marks seem right on and so does the dist but i do get a ocasional back fire and engine when started floods out untill i clear it out and when finaly got it started had to increase idle dramaticaly to keep running and now from idle over 1700 rpms ive never herd of this before and realy lost now i did instal a grear drive unit for timming instead of chain iknow this is alot of stuff to happen and also my headers also got warm and disored the coateng the werend red but did get hot and help would be greatly appreciated
We're going to need a little more info on how you set the timing, have you put a timing light on it? how many psi is your fuel pump putting out? I'm sure we can help with a little more info.
 
If I were you? I'd be more concerened about my spelling, sentence structure and punctuation, and worry less about the car. Just sayin!
 
im using a mechanical fuel pump. and not sure of the pressure, would a vacume leak cause to run rich? all i know is i dont want to ruin another motor or have to redo it like i did this one.due to the cam bolt to come lose? and ive inicialy set timing at arount 10 advanced.
 
high idle & discolored headers are a sure sign of vac leak. look for that first. hopefully someone with more knowledge will chime in before you rip up that motor.
 
Are you sure you lined up the marks on your camshaft properly? To degree it either at 0 or-4 or +4 degrees? If yes, it sounds to me like the floats could be stuck in your carb try tapping the bowl area lightly.
 
Vacuum leaks cause it to run leaner but could still be rich depending on your carb settings. You need to find out what your fuel psi is, a stuck float, improperly set float level or excessive fuel psi will cause flooding. What type of carb is it?
 
If I were you? I'd be more concerened about my spelling, sentence structure and punctuation, and worry less about the car. Just sayin!

How correct is your post in these matters?

Just? thinkin'? because? I've? failed? to? find? "concerened"? in? the? dictionary?

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Discolored headers is usually caused by fuel burning in the headers. This is ALMOST ALWAYS caused by too little spark advance! If you don't have enough spark advance, the fuel doesn't have time to burn in the cylinder and it finishes burning in the header.

Lack of spark advance will also cause the engine to backfire during starting, rough idle and poor acceleration.
 
im running edelbrock n i think the intake was leaking i took it off and cam off with out any force just lifted off i used copper spray on the valley pan but maybe only part of my problems

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whats spark advance
u meane timming advanced or somthing else? i put a light on timming marcks and there adjustable to retard and advance. so the dist gear cant be off a cog right?

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can this ruin a engine i only ran it like this 4 about 30-60 min
 
Yes, spark advance is timing. If you have any type of larger duration aftermarket camshaft, 10 degrees advance at idle will be way too little initial timing. What cam are you running? The camshaft duration will determine the proper initial timing required to run properly. I'm lacking time to search earlier threads to see what you may have posted earlier.

"took carbs off", does this mean you are running dual 4bbls or a six pack? Were the carbs operating properly before the original cam problem? If so, it is less likely a carburetion problem.

Ruined in 30-60 minutes? Unlikely in this case. But, I've seen engines ruin themselves in 12 seconds when they were assemblied improperly.
 
Are you sure you lined up the marks on your camshaft properly? To degree it either at 0 or-4 or +4 degrees? If yes, it sounds to me like the floats could be stuck in your carb try tapping the bowl area lightly.

You need to post more often so we can get a look at that avatar!
 
Come on now...Miss spelled words do and quite often happen on these forums. The OP though has a sever problem with a sentence that runs on and on which makes it extremely difficult to decipher what he /she is actually trying to ask. This Board is not an iPhone or similar device but a place to discuss things related to our Rides. Those that continually use that type if writing are doomed to be nothing more than "Borgs" when it comes to explaining them selves. Had the OP at least attempted to construct something coherent in his writings then this type of comment wouldn't have come into play at all. I even had a difficult time trying to understand what was being said and asked. "Just Sayin' is all!!!!!!
 
1. get some carby cleaner, spray it all around the carb, the intake, and any fittings on the carb etc. while engine idleing if the idle goes up when spraying the carby cleaner, it means you have a vac leak.
2. if it is popping and backfiring i have noticed on my build that it was doing that when i did not have enough timing advance, go up in advance by 2* each time until it pings then retard it 2* and this should be perfect initial timing.
3. set idle around 900rpm, get a vac gauge on one of the vacuum ports on the carb and tune the A/F screws until you get the highest smooth idle vacuum, keep setting the idle back to 900 if it changes while tuning the Air/fuel screws.

4. get a fuel pressure gauge on your fuel line to see what pressure it is running at.

what pump are you using?
are you certain you cam is in correctly?( degreed correctly?)
 
im running comp cams 564 grose lift. duration 295 307, 251 257 @50, 110 lobe seperation. i think the carbs need to be rejeted and metering rods and springs. yes im running dual quads. i am on here alot and post alot also . ive just set timing to 10deg advanced just for start up. i thought it would be fine iuntil i got eaverything dialed in. then jump up until it pings ne retard 1 deg. i put timing gears in my self n god i gope not a cog off but i did put on top dead center and dist is at # 1 on dist.

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i did find that intake was leaking it was not sealed to block or the valley pan. i used copper seal and being it did not seal due to the intake being shaved ill have to use right stuff sealent.
 
I don't have any idea what compression you are running but that camshaft will be most uncooperative without at least 18 degrees initial at idle.

It's very important to time the camshaft with a degree wheel and a dial indicator. Without doing so you will never know for sure what you're working with.
 
...

i just put my new motor back in after the cam bolt cam loose and runing all the bearings but noW i havE a new can of worms to deal with my motor now is over fueling and missing and has a eratick idle and no power took carbs off and opened them up and seem fine but there was fuel and carbon in the planes still from last night timming semmes to be on i put in #1 and timming marks seem right on and so does the dist but i do get a ocasional back fire and engine when started floods out untill i clear it out and when finaly got it started had to increase idle dramaticaly to keep running and now from idle over 1700 rpms ive never herd of this before and realy lost now i did instal a grear drive unit for timming instead of chain iknow this is alot of stuff to happen and also my headers also got warm and disored the coateng the werend red but did get hot and help would be greatly appreciated
 
i just put my new motor back in after the cam bolt cam loose and runing all the bearings but noW i havE a new can of worms to deal with my motor now is over fueling and missing and has a eratick idle and no power took carbs off and opened them up and seem fine but there was fuel and carbon in the planes still from last night timming semmes to be on i put in #1 and timming marks seem right on and so does the dist but i do get a ocasional back fire and engine when started floods out untill i clear it out and when finaly got it started had to increase idle dramaticaly to keep running and now from idle over 1700 rpms ive never herd of this before and realy lost now i did instal a grear drive unit for timming instead of chain iknow this is alot of stuff to happen and also my headers also got warm and disored the coateng the werend red but did get hot and help would be greatly appreciated
When the cam bolt came loose what was repaired? Did you check to see if it bent any valves? How did the cam bolt coming loose cause bearing damage? What else was damaged and/or replaced?
Doug
 
motor was completly rebuilt machine shap put in new bearings honed cylinders checked heads and pollished crank and shaved heads etc

got motor to run decent. but either it been a long day or a brain fart!! i got idle mix set but timming is almost off the board. im advancing dist but way past the marks .how far do u advance? it almost strait across or 270 deg on harmonic ballencer but it starts and shuts off no compression sound when i start it. i now cant get back to 0 unless i raise idle up but i started out with timming at 0 that prob due to ne adjusting idle . is this normal or am i thinking to much? i cant get it to ping yet at a idle. and advaning is counter clock wise right?

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does this mean im still a cog off?
 
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