Brand new motor ?

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Brand new motor ?

Post  tconnection on June 19th 2013, 12:11 am

This is a 580ci 13.5 to 14cr, 1250 carb 114 octane, crank case evac system, low tention oil rings, msd dist, 6al and blaster efi coil. It dont blow any smoke at idle but it'll blow a lil at start up and when i yank on the hammer. It does smell kinda gasie in the collectors.
Thanks for any and all info.

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Re: Brand new motor ?

Post  69F100 on June 19th 2013, 12:15 am

What color of smoke if it black sounds like it is running rich or the floats in the carb is to high and flooding some.
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Re: Brand new motor ?

Post  tconnection on June 19th 2013, 12:40 am

Its a lil bluish and kinda strong. Like i said its clear at idle. The carb has 96's in it.

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Re: Brand new motor ?

Post  austin460 on June 19th 2013, 3:05 pm

Valve seals ?
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Re: Brand new motor ?

Post  richter69 on June 19th 2013, 4:27 pm

any runs on it to seat the rings?
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Re: Brand new motor ?

Post  tconnection on June 20th 2013, 12:45 am

Im gonna back up to the begining. This is a brand new aheaded motor, new everything, heads, intake, block and all. 91cc heads cut .020. I had a seepage at the two front corner stud nuts. I desided to redo the intake. Once i got it off and cleaned up i sat it down on the valley and it had gaps at each china wall but it also had a gap at the intake gasket area on both sides, im figuring almost or really close to a 1/6th and a SCE 1/6 gasket is what i had used. But anyway i redid it and still got seepage on both sides. Now here goes again. I got some 1/8" gaskets and the arp 12 point stainless bolt kit. Im going at it again. Hope the bolt holes line up.
Reason mentioning all this is because i may be getting some oil seepage to an intake port. Any thoughts on this subject?
Thanks

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Re: Brand new motor ?

Post  kim on June 20th 2013, 11:14 am

might have to have the intake to head mounting surface machined.  One size doesnt fit all.  Espeacially if the heads had to have a surface treatment (quick mill on the head to block mounting face for a gasket finish, or to clean up any nicks or things done when porting etc). 

After the amount shaved off my BTs because of this that and the other...  now down to 64cc combustion chambers, the intake had to be milled to get it any where close to sitting down enough to match to the ports and of course put the china walls in close enough contact that less than a 1/4" bead of silicone would seal.

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Re: Brand new motor ?

Post  austin460 on June 20th 2013, 1:26 pm

Done a quick search on milling heads/intake manifold, what I have is thus. For every .010" taken from the head surface you should take .010" from the intake flanges and .0143" from the intake ends.

Hope this helps. Sorry about first reply wasn't aware of full story.
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Re: Brand new motor ?

Post  69F100 on June 20th 2013, 4:55 pm

I think you are going to keep having problem until you get the intake milled to fit right to theheads
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Re: Brand new motor ?

Post  tconnection on June 20th 2013, 10:44 pm

Richter69, naw i havent ran it yet but when i get some brakes i am gonna go down da street and back. LOL!
Buddy might of shaved more than .020 off.
But ah, I got some 1/8'' trickflow's that im gonna put on tonite. I believe they're thick enough. Plus if the bolt holes dont line up im for sure gonna have to have it milled or whatever got to be done.
I'll know tomorrow if it seals off.
Thanks a million

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Re: Brand new motor ?

Post  cool40 on June 20th 2013, 11:30 pm

Dont cut the intake,cut the head.that way your intake will work on another engine.
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Re: Brand new motor ?

Post  tconnection on June 21st 2013, 12:22 am

When is an 1/8'' gasket is perfered over a 1/6''? Or when is an 1/8'' gasket needed?
Thanks

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Re: Brand new motor ?

Post  quick 52 on June 21st 2013, 3:14 pm

take a mockup bolt only one side down with a gasket I also use a threaded alignment stud on the ends of the measure side and then measure with a feeler gage.... u can mix match gasket 1/16 with a 1/8 side to side if needed

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Re: Brand new motor ?

Post  BigRigTech on June 21st 2013, 8:53 pm

I had this problem, pulled my intake and found a film of oil in all my intake ports due to the intake not sitting right. Milled .010" off the intake, problem solved. My heads were planed a bunch so the intake needed a cut too.
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Re: Brand new motor ?

Post  tconnection on June 21st 2013, 11:18 pm

OOOK, here i go again. Got the 1/8''er's on along with the a460 bolt set and everything went well but had to be lovey dubey with every move. Torqued down to 25#.
Looking down through the carb pad i could see the two center ports and i had to trim the top of the gaskets to match up with the top of the port on the head. Im letting the ultra grey cure good and before i crank it.
Problem really should be solved cause i can see that the gasket is pressed pretty tight. I'll know tomorrow.
Thanks again

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Re: Brand new motor ?

Post  tconnection on June 23rd 2013, 11:51 pm

Well the 1/8''er's did'nt work. Still getting water at the base of the nuts. And this thing torqued down to 25#
I guess the only thing left to do is to have it milled.I'm gonna call trickflow and see if they would do it.
Other than that i think everything else is all good. Oil level is still the same so i dont think any coolant is going to the valley. I let it run 15 or 20 mins blipping on it regular and it didnt go above 150* and oil pressure was 70 cold and 40 hot with 10w40 castrol.
Thanks

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Re: Brand new motor ?

Post  austin460 on June 26th 2013, 1:14 pm

I know it would drop your compression but have you considered using head gaskets with a thicker compressed height.
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Re: Brand new motor ?

Post  tconnection on June 26th 2013, 11:15 pm

I understand what's going on with the intake but i cant visualize it. But i do know that the ahead intake gasket has a kinda thin piece of gasket between the water port and the bolt which has to be where the water is getting in. I really cant see what's going on. It's just in the front. Im wondering if my heads are shaved level.
Thanks

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Re: Brand new motor ?

Post  austin460 on June 27th 2013, 3:17 am

Just re-read post. If your heads are skimmed surely putting thicker intake gaskets on will make your problem worse. As your heads drop down from being skimmed the vee becomes tighter therefore you should have a tighter fitting intake and need the thinner gaskets.
Out of curiosity at the front and back of your intake are you using the rubbet type gaskets or a bead of silicone?
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Re: Brand new motor ?

Post  tconnection on June 27th 2013, 10:45 pm

Silicone, and im gonna take the intake to have it milled. The shop that did the heads cant or dont mill intakes. Im gonna call the shop that did my block.
Thanks

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Re: Brand new motor ?

Post  tconnection on July 13th 2013, 12:41 am

I got my intake off ready to be boxed up for a mill job. And i noticed the first time i took it off the head ports seemed a lil greasey and this time also. I just looked down in the ports and guess what, oil. Somebody somewhere had mentioned that. Valve closed, oil sitting on top. Totally contaminating the fuel charge.

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Re: Brand new motor ?

Post  69F100 on July 13th 2013, 12:55 am

more than likely it was sucking oil in from lifter valley where the intake was not sealing right
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Re: Brand new motor ?

Post  BigRigTech on July 13th 2013, 8:26 am

I mentioned that because I had that happen to me, I had the intake milled .010 I believe and problem solved.
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Re: Brand new motor ?

Post  tconnection on September 1st 2013, 12:16 am

I had my intake milled according to .020 cut off my heads and still not sealing. Im still getting some oil in on the valves on the passenger side. Something somewhere aint right. RPM swair on his head shaving to be equal and WildCat swair on his block work machine work. Now im gonna check trickflow cause it just aint fitting right. I hate to pull these heads off but can they be checked to see if they are cut square? As for the intake, buddy said he cut the same off each side and some off the china walls. I just want to get to the bottom of this. Right now im gonna have cometic make me .030 gaskets and if they don't work im pulling the heads to have them checked out. Can the intake be checked to see if each side measure the same?
Thanks

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Re: Brand new motor ?

Post  c.evans on September 1st 2013, 1:12 am

tconnection wrote:I had my intake milled according to .020 cut off my heads and still not sealing. Im still getting some oil in on the valves on the passenger side. Something somewhere aint right. RPM swair on his head shaving to be equal and WildCat swair on his block work machine work. Now im gonna check trickflow cause it just aint fitting right. I hate to pull these heads off but can they be checked to see if they are cut square? As for the intake, buddy said he cut the same off each side and some off the china walls. I just want to get to the bottom of this. Right now im gonna have cometic make me .030 gaskets and if they don't work im pulling the heads to have them checked out. Can the intake be checked to see if each side measure the same?
Thanks
Before you pull the heads, I'll ask the simple question. Did you clean the threads and use a good quality RTV on the intake rocker studs when you screwed them in the head. Those rocker stud holes go into the roof of the intake ports, and they will suck oil through them if you don't use a sealer or RTV.

Charlie

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