pouring alchohol, acetone, thinner etc in heads to check for leaks...

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Jan 3, 2008

#1

• Jan 3, 2008

• #1

a friend of mine took my heads and installed bigger valves and did a valve job and better springs etc. got them back and poured some lacquer thinner in the ports and pretty much all of the valves seep a little bit, it doesnt just come out instantly. you have to let it sit for a sec and then it will finally trickle out a bit around the valve, it doesnt pour out but it just a little wet under the valve, nothing major.

is this normal at all?? or should it be sealing 100%

if not then i will give them back to him to fix them.

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Jan 3, 2008

#2

• Jan 3, 2008

• #2

it should be pretty tight. its gonna take alot of effort to put the missing material back. just out of curisity where they E7's or osmething good?

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Jan 3, 2008

#3

• Jan 3, 2008

• #3

they are a set of thumper e7s i have.

 

BK_CAULEY

it's built for speed not longevity, woman

Dec 26, 2006

0

10

49

Thomasville, ga

Jan 3, 2008

#4

• Jan 3, 2008

• #4

i dont know what to tell you to do unless he can put in a bigger valve and grind the affected area to a better/ correct shape.

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Jan 3, 2008

#5

• Jan 3, 2008

• #5

they are already 1.9/1.6 valves.

i'll figure something out. they way they look doesnt look like it would cause a problem. it gets through but you can barely see it under the valve. it doesnt drip or run down at all. would it run funny if i just ran them?

 

795.0pacecar

lover of pudgy polygamists

Jul 11, 2003

480

0

17

Senoia, GA

Jan 3, 2008

#6

• Jan 3, 2008

• #6

They dont have to be %100 leak free. Turn the heads combustion chamber side up, fill each combustion chamber with a penetrating oil like wd-40, pb-blaster, or something similar, and let it sit for a few hours. It should at the very most just be a little damp in the ports around the valves. If it seeps more than that try lapping the valves, your buddy may have neglected to do this.

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Jan 3, 2008

#7

• Jan 3, 2008

• #7

what exactly is lapping the valves, sorry i sound like a newb lol i dont know.

 

795.0pacecar

lover of pudgy polygamists

Jul 11, 2003

480

0

17

Senoia, GA

Jan 3, 2008

#8

• Jan 3, 2008

• #8

Lapping valves are done to check the location of the valve-to-seat contact point and to smooth the mating surfaces.

To lap the valve, dab lapping compound (abrasive paste) on the valve face. Install the valve into the cylinder head and rotate with a lapping stick (a wooden stick with a rubber plunger for holding the valve head). Rub your hands back and forth on the lapping stick to spin the valve on its seat. This rubs the grinding compound between the valve face and the seat. Remove the valve and check the contact point. A dull gray stripe around the seat and face of the valve indicates the valve-toseat contact point. This helps you narrow or move the valve seat.

Click to expand...

 

Gearbanger 101

Straight Outta Locash

20+ Year Stangneter

Aug 10, 2002

9,457

1,377

234

Ontario, Canada

Jan 3, 2008

#9

• Jan 3, 2008

• #9

http://home.hiwaay.net/~langford/corvair/valvejob.html

 

Mr. Rustypwnz

Advanced Member

Jun 1, 2005

1,761

63

69

indianapolis/ valdosta ga

Jan 3, 2008

#10

• Jan 3, 2008

• #10

cant wait till I get my gt40p's from thumper!!!

 

5.0Droptop

...all those nights we shared, and you're a dude??

Special Agent Mukity-Muck Whats in Charge Round Here

May 15, 2002

1,785

1,130

233

Indiana

Jan 3, 2008

#11

• Jan 3, 2008

• #11

thumper is da man!!

 

Roland69

Sergeant Tangnet

Sep 17, 2005

2,867

3

58

Port Elgin, Ontario

Jan 4, 2008

#12

• Jan 4, 2008

• #12

Gearbanger 101 said:

http://home.hiwaay.net/~langford/corvair/valvejob.html

Click to expand...

lots of reading but well worth it...lots of good knowlage there

 

PUNISHER RACING

Active Member

Aug 27, 2007

1,124

0

36

FORD CITY, PA.

Jan 4, 2008

#13

• Jan 4, 2008

• #13

Anytime I ever install new springs I always whack the valve stems with a dead blow hammer to seat the valves in the pockets.

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Jan 4, 2008

#14

• Jan 4, 2008

• #14

you just whack the spring to open it up to have it snap shut?? should i try that??

and yes thumper is cool. his work is top notch the port work he does is great! my set of e7s he has done. hold them up to a pair of stock unported e7s and the difference is unreal... especially on the exhaust side.

 

PUNISHER RACING

Active Member

Aug 27, 2007

1,124

0

36

FORD CITY, PA.

Jan 5, 2008

#15

• Jan 5, 2008

• #15

yeppers~!