no guys im not stupid, i took the 650 off because it wouldnt idle, and i put my buddies 750 tht i know works on and the prollem continued,
i am pulling the heads because the valve seals are blown, and need to be changed
overwise there would be no oil on the plugs no miss and no blueish grey smoke in the exhaust,
im not tryin to be a dick, but i wanted help from you guys, u dont gotta make fun, as easy as it may be to do lol

and its not idleing because the plugs are fouled from the oil not because of a vaccume leak

Seals?
 

You DO Realize that You can CHANGE the Seals w/Out Pulling the Heads off!If its a SBC,and the Heads had a O-Ring type of Seal?Go down to the Local Auto/Machine Shop.Tell the Machinist you Need a set of UMBRELLA Seals for a SBC.They can be Changed with a Moroso Valve Spring Tool 1 @ a Time.And thats a hole Lot easier than Pulling the Heads!
Truthfully,I think the Guides would have to be REAL Bad for this Problem to Happen???
Later
G 8)

I have run small blocks with NO valve seals before and never fouled a plug...guides would have to be worn slap out to leak that much oil , I THINK YOUR JETS ARE STUCK OPEN :lol: :lol: :lol: :lol: :lol: :lol: :lol:

but how else would there be tht much oil on the plugs?
it isnt the rings, cus compression was good on all of the cyllinders

ITs probably gas fouled plugs, not oil

Could be his Bellhousing gasket blown out :!: :!:




''JUST MY TWO CENT'S WORTH''

gas
 

I would Also say that its Gas Not Oil?
Let me step out on a Limb and ask?What do you have for IGNITION?
Later
G 8)

SLOW DOWN!!! this is giving me a headache... I can't believe this thread is still going.

Bowhay: I am not the smartest guy on carbs either, but slow down & lets go back to the basics. I agree- valve seals are not why this thing has no/poor idle & is rich.

1. What the is the vacuum read at idle around 2K RPM???
2. Your jets appear to be too big like Tod said.
3. Is the carb too big for the application???
4. Flip the carb over & notice the adjustment for the secondary butterflies... where is it set??? You can over adjust this & cause more problems. have you messed with it?
5. WHERE are the floats set??? primary & secondary??? You said they were "fine"... what is fine to you??
6. Like Tod said, your cam spec will cause a certain amount of vacuum (or lack thereof) at low speed/idle. If you do not have a lot of vacuum at idle, you may be dumping fuel & not enough vacuum to compensate for it. This is why some folks will drill little holes in the secondary butterflies.
7. Are there any other vacuum sources on the motor (P/B Booster) etc...??
8. What distributor? does it have a vacuum advance? Manual? If vac advance, is it the low vac style?
9. Low vac will also dictate which PV you should use as well.... it has to have enough vacuum to open. To determine this, get a vac gauge reading. Randomly changing PV's will cause more confusion.

Lets get all the facts straight. One adjustment at a time without tearing apart everything... note the adjustment/improvement. Once all these facts are answered we can help you better. Scoot

Have you ever used nitrous on this engine?

ok yes i have sprayed it 5 or 6 times
i am fairly positive it is not a carb issue because it began with the 650 i had and got worse with the other, i also put a buddies 750 on it tht i know works with no luck, it IS oil on the plugs, if it looks like oil, and smells like oil it must be oil
i was recently told tht when i built this motor i did a big no no and reused the seals because i used the same headsafter they had been vatted
this is why i am leanin toward them as the prollem and because the plugs have fouled out 3 times in 1000 miles, the oil is all the way up on the threads of the plugs not just the tips
there are only two ways to get oil on the plugs right? rings or valve seals
i do not have a vaccume guage but it would do no good due to the fact tht it will not idle or run

and ya mopar lol ive had to change those a time or too jk :P

and its a malory unilite dist. with a msd coil

if you are getting enough oil down valve stems to foul the plugs then the guides are worn out bad.,,as I stated earlier , i have run heads with NO seals at all with no problems ( good tight guides) just my input :)

heres a thought i know my cam is way to big my carb way to small and my preformer intake to restrictive for my heads (ported and polished) and my car idles like crap when it does made small adjustments to carb and got it as best as i can. (found out recently the parts arent meshing) so my thoughts on this are that one ore more parts not meeting the requirements you need. and the 750 you borrowed may not be adjusted to your engines need hence the problem still there

Do you have a PCV valve? Do the valve covers have baffles? High volume oil pump?

Did you steal gas from your father's shed...possibly his weed eater gas? :)

How much nitrous are you spraying :?: And how much timing were you using :?: I just got a feeling this might be the root cause, When i ran nitrous i was tempted to use it when i shouldn't :!: :!: When you used it, did the engine make any noise at all :?:



''JUST MY TWO CENT'S WORTH''

After reading thru the carnage once more, I'm starting to think you may have toasted the rings and or pistons with the "squeeze" there BOWHAY.

It's not hard to do, add a little too much nitrous, not enough fuel, too much timing, and wham-bam thank you mamme>>>Smoked another SBC!!

Again, Just my 2 cents...

First time weighing in on this thread, i can say if it's oil, the rings or the guides have gone south. I don't run seals an any of my racing engines, but they are on alcohol, on my street engines i only run ford bonnets on the intakes. I donot run more than .002 clearances on the guides, any more than that i knurl them or replace them.

JMO

Zip.

I would like to have all the engines ole bowhay has trashed in the last year :D

u would only get one
like i said i did a compression chekc and the rings are fine
and i sprayed 125 with 32 degrees and 110 octane
ran fine and sounded fine no wierd noise

What was the compression reading on each cylinder :?: :?:




''JUST MY TWO CENT'S WORTH''

I had an intake gasket blown between the port and lifter valley and had similar problems , idle problems and oil in cylinder , might give that a check...same engine backfired one time and blew one valve cover up like a football :lol:

they were all about a 170 lbs

Does it have aluminum heads on it? Did it over heat at any time??

I had a 89 Probe that warped the head when it overheated one time and it wouldnt idle at all. Found out I burnt the rings in it and warped the head. There was no water in the oil or anything.

Bowhay do you know anyone who could help you do a leak down test? That will give you a better picture of the condition of things.

ok so i found the culprate
i pulled the heads and there was a puddle of oil standing on top of number 7 and 4 and a lil on almost all of the valves, so i pull the springs off and the guides are so bad tht almost all of the valves have play in them
and a few will actually jiggle from side to side,

:D :D :D :D :D :D :D :D :D

nice job manic

5 pages to figger this out ????????? :shock: :shock: :shock: :roll: :roll:

MAN--NOW HE WILL HAVE A BIG HEAD AND WON'T SPEAK TO US SMALL PEOPLE :oops: :oops: :oops: :oops:

it already outgrew my hair

let me fix this mopar and others who said this nice job :lol: :lol:

most guides have a few thousands of play unless the heads are new or near new or have had the guides replaced. Find someone to help u go threw a entire engine.

im going to go threw the whole thing
i know there should be some play but there is ALOT in a couple of these guides,
im takin the heads to the machine shop tommarrow to get new giudes installed and another valve job done

thanx so much to yall who helped me figure this thing out

dont take it to the same one that did those heads

:shock: :shock: :shock: :shock: :shock:

im not

You said this engine had 1200 miles on it...and you say ANOTHER valve job,so I assume you had the valves ground when you built the engine...How did they not know the guides were bad ?Hard to imagine any competant machine shop doing a valve job on a set of heads with worn out guides.

If you got oil puddled up on top of the pistons, you've got other things to worry about than a wiggle in the valve guides.

JMO>Cp

thats for sure!!