Jeworks compression numbers and changing dome size???

[grezzmky]

feeler gauge

 

[grezzmky]

seriously? I cant say feeeler gauge?

 

[ProSouth]

youll want a dial caliper or vernier caliper. no eyeballing

 

[ProSouth]

seriously? I cant say feeeler gauge?

and dont you forget it

 

[grezzmky]

Yea I figured that. my neighbor runs a cnc doing something so maybe I can crush the soider and send it to work with him. however I just stuck a 1/6" thick piece of soider into the spark plug hole (bent a 90 0n it and put it all the way to the tray side of both cylinders turning it over multiple times by hand and it did not touch it...

 

[ProSouth]

i really didnt think you needed the spacer, but i didnt setup the motor, but either your basegasket setups wrong or those domes were cut

 

[grezzmky]

The head should have been brand new with 35 domes. I bought the 33s on here. 5lbs diff between 35 and 33. Ill just get it to the machine shop down the street maybe to check the squish this week. Thanks A LOT for your help!

 

[ProSouth]

i dont think those are 33 cc domes. those domes should give you 10-15lbs going from 35 to 33. my ski has 35's but i cut them so unless someone runs my exact setup, its probably not going to be a good outcome. see what im saying? they could have been cut. get your machine shop to measure with fluid the difference between a 35 and 33 dome

 

[grezzmky]

Did you read my PM? What if my sqush is huge and I takr out the spacer or get a smaller one. What does lowering the cylinder do for port timing?

 

[ProSouth]

you need to know WHAT you have really, i replied to the PM. measure the domes and find out what the deal is with 5lb compression difference. shouldnt be that way. it sounds to me like its a set of cut domes.

 

[Big Kahuna]

What are "sexy height changes"??

Damn autocorrect. Why did you change domes to begin with.

 

[Big Kahuna]

Leave what Art put in there to begin with

 

[ProSouth]

he went back to that and has no contact to check his squish. but they have the spacer plate on the bottom and the gaskets.

 

[grezzmky]

I changed them cause he said with 35s I needed one gallon 110 to 4 gallons 93. I added TL and always mix 50/50 anyway so last year he said it was ok to bump it up. WHY IS MY COMPRESSION SO LOW?!? ugh

 

[Big Kahuna]

Put your 35's back in and retest

 

[Big Kahuna]

Wait. You added a new spacer at the bottom. Where the original. That sounds like your problem. New one is thicker

 

[grezzmky]

Yep squish looks like .068

 

[grezzmky]

should be .040 right???

 

[ProSouth]

Sounds excessive. I agree with bk if you have a different spacer, it may not be spot on and you need to take some material off