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

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:


Here's a question, and it's not entirely off topic or out of place I don't believe.

How is it that you purchased an aftermarket head for almost 100 bucks, yet you haven't gotten a sparkplug to replace the stock sparkplug yet?

Not to be rude or anything by any means, but really a sparkplug is a very cheap and simple upgrade that usually gets done in the first few days, if not before assembly.
 
You motorheads are far too quick to pull your engines down ! LOL

Grab a larger paperclip from the desk your pc is sitting at and bend it so there is a small L at one end, a straight length, and ANYTHING at the opposite end that will keep it from falling completely into the sparkplug hole.

Stick it into the ho, catch it on the bottom of the threaded part, and make a small mark with a sharpie, a piece of tape, or something....

Compare that length against the plug, with a compressed gasket on it and see where it corresponds. That will get you started on IF you need to pop the head or not !

...if no one mentioned, they DO sell spark plug shims used for indexing the plug, but they will be a bit tricky to locate a source.

...and who's got clay!!! LOL

A bit of chewing gum, wadded up white bread, or some flour paste bread dough would suffice for a clearance test at a preliminary stage.

...and yah GOTTA have clearance because at high rpm, after the heat causes everything to grow, the crank literally throws the piston up and will exceed static clearance.

Fun stuff!

Good luck
rc
 
Phht who DOESNT have clay?

Anyway, frankly i think those heads are hinky anyway. Hardly any fins for air cooling. I wouldnt run one, but to each his own.

Besides, pulling the head takes 5 mins, provided you didnt jack up the head gasket. And you could be talking mm or less measurements, dont know if a mark on a paperclip would be good enough.
 
Here's a question, and it's not entirely off topic or out of place I don't believe.

How is it that you purchased an aftermarket head for almost 100 bucks, yet you haven't gotten a sparkplug to replace the stock sparkplug yet?

Not to be rude or anything by any means, but really a sparkplug is a very cheap and simple upgrade that usually gets done in the first few days, if not before assembly.

Good question and its not rude at all: Well i got 3 stock plugs with my engine. One i used for break in. One was broken and the other one is plugged in my engine now. I believe they do the job but i have ordered the NKG like listed below and it hasn't shown up in the mail (been 5 weeks now) alittle fishy right?. I have no motorbike/ nor hardware stores local to where i am who sell them. thus have no way of getting them in person. I have ordered the 3 prong spark plug from MBB imports which is meant to be a performance boosting plug which i was told by the owner of the company it matches perfect with the billet heads. So i hope his not lying. If not i will order NGK's from elsewhere and hopefully i get them. :)

PS billet head $109 including postage. lol

My NGK B5HS has a 14mm reach. Looking at the chart at http://www.spark-plugs.co.uk/pages/technical/ngkjpg.htm I can see that there are plugs available with 8, 10, and 12mm reach.
Awesome thank you. I will use this if the spark plugs i get fail me. :D

You motorheads are far too quick to pull your engines down ! LOL

Grab a larger paperclip from the desk your pc is sitting at and bend it so there is a small L at one end, a straight length, and ANYTHING at the opposite end that will keep it from falling completely into the sparkplug hole.

Stick it into the ho, catch it on the bottom of the threaded part, and make a small mark with a sharpie, a piece of tape, or something....

Compare that length against the plug, with a compressed gasket on it and see where it corresponds. That will get you started on IF you need to pop the head or not !

...if no one mentioned, they DO sell spark plug shims used for indexing the plug, but they will be a bit tricky to locate a source.

...and who's got clay!!! LOL

A bit of chewing gum, wadded up white bread, or some flour paste bread dough would suffice for a clearance test at a preliminary stage.

...and yah GOTTA have clearance because at high rpm, after the heat causes everything to grow, the crank literally throws the piston up and will exceed static clearance.

Fun stuff!

Good luck
rc


LOL I don't have a paper clip next to my computer :(
I had to go out a buy clay for the job as i didn't have any. but the gum and flour paste dough would have worked perfectly. why didn't i think of that?

I placed another washer on the spark plug from a used plug and it gave it the clearance it needed. I have ordered a plug with a smaller reach :)

I love taken things apart and putting them back together. Helps me learn how everything works and what part goes to another.

Phht who DOESNT have clay?

Anyway, frankly i think those heads are hinky anyway. Hardly any fins for air cooling. I wouldnt run one, but to each his own.

Besides, pulling the head takes 5 mins, provided you didnt jack up the head gasket. And you could be talking mm or less measurements, dont know if a mark on a paperclip would be good enough.


1) I didn't have clay LOL but i do now :)
2) surprisingly it doesn't have any cooling problem. I haven't notice a big change in temp as of yet. I have placed heat rubber in the cooling fins on the cylinder jug so the heat from the engine moves into the rubber and gets spread evenly. Plus it helps engine noise and vibrations


Thank you to everyone for there help :) much appreciated:bowdown:
 
...That's an Oops!

Don't re-use a crush gasket from a sparkplug ! Especially stacking them !!!
They nearly always blow out.

(Please don't ask how I know all this stuff!)

Good luck
rc
 
A, have you noticed an obvious reduction of noise by putting the rubber in the cooling fins?

I'm kinda concerned about the 'trashy' noise these HT engines throw off to the side while travelling through town.

<< I >> could probably ignore it myself, for a while, but would prefer an engine that is quieter. LOL Had an old harley flathead once that drove me nuts after I put hi-compression aluminum heads on it! I just couldn't hang... got it finished and sold it!

Best
rc
 
A, have you noticed an obvious reduction of noise by putting the rubber in the cooling fins?

I'm kinda concerned about the 'trashy' noise these HT engines throw off to the side while travelling through town.

<< I >> could probably ignore it myself, for a while, but would prefer an engine that is quieter. LOL Had an old harley flathead once that drove me nuts after I put hi-compression aluminum heads on it! I just couldn't hang... got it finished and sold it!

Best
rc

I have noticed a big reduction of noise from placing rubber in between the cooling fin's. Mostly the tinny noise from the vibration caused from the piston going through the jug. Its was sending me nuts until i heard "rubber can help stop that noise" lol.. Now i have to find something that will help reduce the sound coming from the gearing/clutch plate.
 
Back
Top