I have a problem!! who can help me solve this debacle?

adrian101

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I got the billet head from rocksolid engines.

Now the piston is hitting the spark plug now. It's the normal spark plug that comes with the engine itself (STOCK PLUG)

How in the cr#p can i make clearance for it to not hit it?





Help me....... PLZZZZZZZZZZZ :whistle:
 
take one or more washers off of other spark plugs and put them on the plug you want to use. Have you tested the psi? What is it? If it's above 135 then make/buy another head gasket and put it on.
 
Honestly though, FIRST take the head off with the plug in and see if the plug threads go inside the chamber. If so, than your plug is to long, get a shorter one.

If the threads of the plug dont go inside the chamber, that means the space between your head and Jug has gotten smaller. The correct way to fix this? thicker head gasket.

THIRD, Did you try to put a angle fire head on a regular motor? You cant do that. You might have got the wrong head to be honest.

Which head did you buy exactly?

EDIT:

Ih i see it.. good lord man, you paid 90 bucks for that thing? I dunno, looks hinky to me, I dont see a lot of fins on it either, and I bet it doesnt cool worth a ****.

Looks shorter than a regular head...
 
Last edited:
a shorter reach plug or a thicker head gasket (you may need 2 gaskets stacked).
but, thicker head gaskets will lower the compression so you may be defeating the purpose of the high compression head by adding a thicker head gasket(s).
you will have to do like oddzball said...remove the head and screw the plug into it and see how much of the plug is in the combustion chamber. if the threads are in the chamber, you need a shorter reach plug. BUT, you will still have to check the clearance between the top of the piston and the electrode pn the plug. A little secret is to put a thin layer of clay on top of the pistion. then, put the head back on and torque it to specs. install the spark plug and rotate the engine by hand (make sure the plug wire is off). after one rotation, remove the head and look at the clay. if there is an indentation in the clay from the spark plug, you can do some measuring to figure out how much clearance you have between the electrode and the piston. it all depends on how much clay you put on the piston tho because if you put a really thin layer on it, and there is plenty of clearance, the electrode will not touch the clay to make a mark on it. you don't want to put so much clay on the piston that it will make a mess if it gets squished. just put the clay in the center of the piston, right below the spark plug. there is no need to cover the entire top of the piston with the clay because that will just make more of a mess.
.
 
you need a tool that you screw in there. compression tester. you can rent one at like autozone for free, just need a deposit


LOL i have one of them. I got it with my air compressor as an accessory. haha silly me for not knowing what it was :eek:

Honestly though, FIRST take the head off with the plug in and see if the plug threads go inside the chamber. If so, than your plug is to long, get a shorter one.

If the threads of the plug dont go inside the chamber, that means the space between your head and Jug has gotten smaller. The correct way to fix this? thicker head gasket.

THIRD, Did you try to put a angle fire head on a regular motor? You cant do that. You might have got the wrong head to be honest.

Which head did you buy exactly?

EDIT:

Ih i see it.. good lord man, you paid 90 bucks for that thing? I dunno, looks hinky to me, I dont see a lot of fins on it either, and I bet it doesnt cool worth a ****.

Looks shorter than a regular head...

It is kind of shorter but alot larger in diameter. video of what they look like on engines: http://www.youtube.com/watch?v=YOlg3jUYjyM&feature=channel_video_title

a shorter reach plug or a thicker head gasket (you may need 2 gaskets stacked).
but, thicker head gaskets will lower the compression so you may be defeating the purpose of the high compression head by adding a thicker head gasket(s).
you will have to do like oddzball said...remove the head and screw the plug into it and see how much of the plug is in the combustion chamber. if the threads are in the chamber, you need a shorter reach plug. BUT, you will still have to check the clearance between the top of the piston and the electrode pn the plug. A little secret is to put a thin layer of clay on top of the pistion. then, put the head back on and torque it to specs. install the spark plug and rotate the engine by hand (make sure the plug wire is off). after one rotation, remove the head and look at the clay. if there is an indentation in the clay from the spark plug, you can do some measuring to figure out how much clearance you have between the electrode and the piston. it all depends on how much clay you put on the piston tho because if you put a really thin layer on it, and there is plenty of clearance, the electrode will not touch the clay to make a mark on it. you don't want to put so much clay on the piston that it will make a mess if it gets squished. just put the clay in the center of the piston, right below the spark plug. there is no need to cover the entire top of the piston with the clay because that will just make more of a mess.
.

I will do the clay test for sure. Now it is time for me to take the head off!


Thanks for the info and help.
Very much appreciated! :bowdown:
 
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