TwinTurbo.NET: Nissan 300ZX forum - bad valve stem seals won't show up on a compression or leak
Subject
bad valve stem seals won't show up on a compression or leak
Posted by
aliaZ
on October 19, 2014 at 1:19 PM
This message has been viewed
1250
times.
In Reply To
AliaZ compression test was good although was a while ago.
posted by OverZealous (CT)
on October 19, 2014 at 11:34 AM
Message
down test.
Follow Ups
Young. Wet. Exhaust ports.
-
OverZealous (CT)
18:59:39 10/18/14
Leak down test
-
bartz32tt
22:18:41 10/18/14
AliaZ compression test was good although was a while ago.
-
OverZealous (CT)
11:34:55 10/19/14
bad valve stem seals won't show up on a compression or leak -
aliaZ
13:19:45 10/19/14
Right. Do you agree the valve stems are shot?
-
OverZealous (CT)
14:55:27 10/19/14
yes
-
aliaZ
15:09:54 10/19/14
Don't know if combustion chamber is dry...
-
OverZealous (CT)
16:07:00 10/19/14
take a peek through the plug hole with a flash light at TDC
-
aliaZ
22:23:57 10/19/14
Valve seals are shot. The heads need a rebuild
-
ZXRider
22:53:05 10/18/14
Pics?
-
OverZealous (CT)
11:38:27 10/19/14
I have more but I am too lazy to search for them
-
ZXRider
14:33:27 10/19/14
Actually you an install seals with the heads in-situ
-
ZXoltan
15:16:38 10/19/14
*CAN* (n/m)
-
ZXoltan
15:17:28 10/19/14
Thanks ZXRider & ZXoltan (n/m)
-
OverZealous (CT)
17:12:18 10/19/14
The black stuff is hair dye to make them look younger ;-) (n/m)
-
ZXoltan
10:02:26 10/19/14
Lol! (n/m)
-
OverZealous (CT)
11:29:01 10/19/14
What do the plugs look like?
-
BPC23
11:46:53 10/19/14
2nd (n/m)
-
aliaZ
15:10:37 10/19/14
More better port pictures from June
-
OverZealous (CT)
16:25:23 10/19/14
Deduced two left pics are #1 CYLINDER OPEN & CLOSED
-
OverZealous (CT)
18:24:41 10/19/14
Lower Plenum Intake Pics
-
OverZealous (CT)
16:46:31 10/19/14
lol you should see mine (n/m)
-
LJZTT
21:29:50 10/19/14
Intake Valve Pics
-
OverZealous (CT)
17:03:46 10/19/14
#5 Worse Case Spark Plug Pic / Comp Test: 150-155
-
OverZealous (CT)
18:17:08 10/19/14
If the last test was that long ago
-
Turbodog (CT)
18:43:48 10/19/14
IME, acracked ringland world show up a bit on a compression
-
BigTDogg (MA)
19:53:17 10/19/14
Yeah I agree, i was thinking maybe the crack happened after
-
Turbodog (CT)
20:05:05 10/19/14
I hope you're luck with machinists is better than mine
-
wickdGSXR
12:15:14 10/19/14
I've had similar experience with 2 machine shops. (n/m)
-
OverZealous (CT)
14:56:49 10/19/14
Mine looked the same when i pulled my manis..
-
LivinTheDream
12:38:54 10/19/14
Re: Young. Wet. Exhaust ports.
-
WazTTed
23:29:08 10/20/14
What does the job entail?
-
OverZealous (CT)
22:28:10 10/21/14
Post a
Followup
You cannot reply to this message because you are not
logged in
.