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Author Topic:   loading up
Scoot
Member
posted April 02, 2004 11:15 PM
The engine ran great last week. But this week its acting likes its loading up. It fouled most of my plugs, and is smoking very bad(dumping fuel out exhaust). I believe KP said it had 74 jets. Running AC 44 plugs, I'm mixing 110 octane racing gas and 93 octane regular gas. My timing is set at 36. It was colder this week compared to last week and the car barely warmed up to 170. What do I need to do first?

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Scoot
Smith Racing Team
870-365-5989

[This message has been edited by Scoot (edited April 02, 2004).]

Gene
Member
posted April 03, 2004 03:04 AM
Make sure the floats are shuting off the fuel at the proper level.


racer17j
Member
posted April 03, 2004 08:25 AM
check float level and needle and seat for any gunk that might have gotten in it


Scoot
Member
posted April 04, 2004 05:27 PM
I thought I had the problem found yesterday when I found the float adjustment way off. But today I really found the problem. I bent two pushrods and broke a third. What would cause something like that to happen? Brand new motor, was only my second race on it.

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Scoot
Smith Racing Team
870-365-5989


goinrcn44h
Member
posted April 04, 2004 07:11 PM
I would assume thats pretty obvious... when you run out of area and have metal to metal contact something WILL give. In your case it was the pushrods, but I suspect there might be more the farther you go. either you don't have proper clearance or something drastically changed.. start diggin...
44H


Scoot
Member
posted April 04, 2004 08:06 PM
Ok I looked alittle closer and I think it was a oiling issue. The part that goes in between the rocker arm and nut wore down to about half the size of what it should be. And the poly locks on number one cylinder were black like they got hot. Would that be a lifter oiling issue or pushrod? Its all new stuff, and I could have swore I checked the pushrods before I installed them to make sure they were clear of anything, the lifters were in oil before I put them in too. I'm going to check the clearances of my guide plates tomorrow and make sure there isnt any friction there. I just dont know what else to do.

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Scoot
Smith Racing Team
870-365-5989


racer17j
Member
posted April 04, 2004 08:38 PM
do you have a solid or hydro cam?


Scoot
Member
posted April 04, 2004 08:48 PM
I believe its solid, but I honestly dont know. I told Charles at Camcraft what I wanted and he sent it to me the last two times I needed a cam. Its an SXTL racing profile, so I would assume its solid.


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Scoot
Smith Racing Team
870-365-5989

[This message has been edited by Scoot (edited April 04, 2004).]

racer17j
Member
posted April 04, 2004 08:59 PM
that is something you need to know there are big differences in the way you adjust the lash on a solid compared to not running any on a hydro and what about oil restrictors if you run a hydro you can't run them that could be part of your oil problem if you have a hydro cam and oil restrictors


Scoot
Member
posted April 04, 2004 09:10 PM
Ok I'll double check to see what it is. I bought the cam and had my engine builder put the short block together. And yes I am using oil restrictors. But I hope he knows what he was doing when he built it for me. Only the number one cylinder showed black, like it got hot. I just figured it was something right there.

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Scoot
Smith Racing Team
870-365-5989


Raz_900
Member
posted April 05, 2004 10:03 AM
quote:
Originally posted by Scoot:
Ok I'll double check to see what it is. I bought the cam and had my engine builder put the short block together. And yes I am using oil restrictors. But I hope he knows what he was doing when he built it for me. Only the number one cylinder showed black, like it got hot. I just figured it was something right there.


The restrictors are probably what got ya, especially if it's a hydro cam. #1 and #2 will probably show the most heat since they're the last in line to get oil in the lifter galley. Take the restrictors out and try again.

It could also be a coil bind issue. If the springs are bottoming, something has to give. The pushrods are usually the first thing to break, but the rocker pivots are rocker arms will be on borrowed time as well. You really need to know what lift the cam has, what springs are in the heads and what installed heights the springs were at.


Scoot
Member
posted April 05, 2004 07:58 PM
I called my cam guy today and they said it was definately a solid cam. I'm going to check for coil bind tomorrow.

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Scoot
Smith Racing Team
870-365-5989


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