Can I test for air leak with out removing the intake manifold?

[CarlosPTR210]

Note: Sorry for my grammar :aigo:

I rebuild the engine, and also change intake to FFIM with Q45TB.

So after that, I have problem when boost over 12psi (around 3500 RPMS) , the A/R go to 10, I adjust the SAFCII at 3500 and upper -15. and still read 10 a/f.

At idle the A/F is around 15.5-16.2.

I want to test all the system, from the turbo to the intake manifold to find any air leak.

Can I test for air leak with out removing the intake manifold?:1zhelp:



Mods for air and fuel:

Turbo T04
Wastegate at 17psi
AFM Lex and RC 550cc
Wallbro fuel pump
FPR with vacuum at 27psi
TB Q45
SAFCII

 

[suprahero]

You can test for boost leaks if you make you a boost leak tester. Their fairly easy to make and very easy to test with.

 

[suprahero]

http://www.supramania.com/forums/showthread.php?t=60454&highlight=boost+leak+tester

There are a couple of links on that page that show you how to make one...........

 

[mazzer]

spray brake cleaner around the intake gaskets,and other suspected leaks. you'll know if you find the leak..

 

[CarlosPTR210]

You can test for boost leaks if you make you a boost leak tester. Their fairly easy to make and very easy to test with.

Yes I have a Leak Tester :biglaugh:. But I want to know how a I can pressure all IC piping, Intercooler, intake manifold, ISC Valve and TB.

Can I pressurize all the system in TDC?

I want to ovoid the air leave from the exhaust valve of the cylinder head.

How can I be sure that all the valves of the cylinder head are closed? so I cant test all the system?

 

[mazzer]

Yes I have a Leak Tester :biglaugh:. But I want to know how a I can pressure all IC piping, Intercooler, intake manifold, ISC Valve and TB.

Can I pressurize all the system in TDC?

I want to ovoid the air leave from the exhaust valve of the cylinder head.

How can I be sure that all the valves of the cylinder head are closed? so I cant test all the system?

the boost-leak tester will pressurize ALL of that. all the valves are closed when the marks of the cam gears,and crank pulley are lined up

 

[CarlosPTR210]

the boost-leak tester will pressurize ALL of that. all the valves are closed when the marks of the cam gears,and crank pulley are lined up

Exellent Thanks! :biglaugh::biglaugh::biglaugh:

 

[jetjock]

all the valves are closed when the marks of the cam gears,and crank pulley are lined up

Say what?

 

[mazzer]

Say what?

lol not with each other , obviously

carlos, the cam-gear marks point UP btw. there are lines on the back cover to line the gear makes up w/

 

[CarlosPTR210]

lol not with each other , obviously

carlos, the cam-gear marks point UP btw. there are lines on the back cover to line the gear makes up w/

yes, like set up the timing right!

cam-gear marks point UP with the back side plate marks, and crankshaft pully is align with the 0 mark.

 

[mazzer]

yes, like set up the timing right!

cam-gear marks point UP with the back side plate marks, and crankshaft pully is align with the 0 mark.

correct.





see, JJ..

 

[jetjock]

How can I be sure that all the valves of the cylinder head are closed? so I cant test all the system?

Did I miss something?

Btw I've said it a million times before: Build a smoke machine. Anything else is Jurassic...

 

[HommerSimpson]

all of the valves are closed ? when set to TDC ? all 6 cylinders ?