|
|
15-01-2019
|
Newbie
|
|
Join Date: Sep 2007
Posts: 47 What Jeep do I drive?: ZJ
Likes: 0
Liked 6 Times in 5 Posts
|
|
Just FYI...I personally don't care.
|
15-01-2019
|
|
CrawlerStar
|
|
Join Date: Apr 2010
Location: Melbourne Australia
Posts: 402 What Jeep do I drive?: XJ
Likes: 88
Liked 111 Times in 90 Posts
|
|
Installed the application on one of my old Pendo tablet and it doesn't work . The earphone socket hasn't got an external microphone input function . Sooo...maybe some Android phone tablets or phones should would work .
|
16-01-2019
|
|
Grumpy Old XJ Dsl Owner
|
|
Join Date: Jan 2011
Location: Northern Victoria
Posts: 13,809 What Jeep do I drive?: XJ
Likes: 4,596
Liked 6,565 Times in 4,348 Posts
|
|
Quote:
Originally Posted by croitoru
Just FYI...I personally don't care.
|
Never loose sight of the fact that these engines predate all this stuff by a long time. Much of it could be discussed in gaming forums.
__________________
98&01XJVMs,06&07KJCRD's,No longer question authority,I annoy it.More effect,less effort.10000Club
|
19-01-2019
|
Newbie
|
|
Join Date: Sep 2007
Posts: 47 What Jeep do I drive?: ZJ
Likes: 0
Liked 6 Times in 5 Posts
|
|
True layback40.
Got the jack from Jcar (3.5, 4 legs). So if time as a single full time father permits tomorrow I'll go down amlav's troubleshooting pathway.
Still no injector , first or second hand , anywhere near on sight, on the net.
Bro also ordered a mini-osciloscope kit
So at this stage, no further progress. Still same :
1,2,3 revs over 2000 and boost holds on or above 9-10
4th,5th - not so much.
Under load, even if the lower gears rev, psi is under 10
Flat is ok on 1.2.3.4
I'm starting to think cracked head, thermal sensor, speed sensor (speed and load seem to be a factor)
Again, thankful for all the advice you guys gave me so far.
R
Last edited by croitoru; 19-01-2019 at 07:56 PM.
|
19-01-2019
|
|
Grumpy Old XJ Dsl Owner
|
|
Join Date: Jan 2011
Location: Northern Victoria
Posts: 13,809 What Jeep do I drive?: XJ
Likes: 4,596
Liked 6,565 Times in 4,348 Posts
|
|
Quote:
Originally Posted by croitoru
True layback40.
Got the jack from Jcar (3.5, 4 legs). So if time as a single full time father permits tomorrow I'll go down amlav's troubleshooting pathway.
Still no injector , first or second hand , anywhere near on sight, on the net.
Bro also ordered a mini-osciloscope kit
So at this stage, no further progress. Still same :
1,2,3 revs over 2000 and boost holds on or above 9-10
4th,5th - not so much.
Under load, even if the lower gears rev, psi is under 10
Flat is ok on 1.2.3.4
I'm starting to think cracked head, thermal sensor, speed sensor (speed and load seem to be a factor)
Again, thankful for all the advice you guys gave me so far.
R
|
I am jumping at shadows. May be worth while making sure your turbo waste gate is closing properly. It could have a weak spring. It is good that you have a boost gauge. Where is it connected to? It should be T into the pipe from the air side to the waste gate actuator.
__________________
98&01XJVMs,06&07KJCRD's,No longer question authority,I annoy it.More effect,less effort.10000Club
|
20-01-2019
|
Newbie
|
|
Join Date: Sep 2007
Posts: 47 What Jeep do I drive?: ZJ
Likes: 0
Liked 6 Times in 5 Posts
|
|
Quote:
Originally Posted by layback40
I am jumping at shadows. May be worth while making sure your turbo waste gate is closing properly. It could have a weak spring. It is good that you have a boost gauge. Where is it connected to? It should be T into the pipe from the air side to the waste gate actuator.
|
Hi
Thanks again for the reply. I got the gauge for ~ 65 from SCP.
I had to fit it on top of the intake manifold, where the turbo hose comes in from the intercooler. It already had been drilled, and had a blank plug screwed in.
As far as I understand, my wastegate is operated directly from a small vacuum pump fitted on the other side of the ECU located in the engine bay. Being vacuum, should I T there...?
I posted some pictures earlier in the thread, but here it is:
Current tap for turbo gauge:
Vacuum waste actuator (as per my understanding):
Would appreciate your guidance...
R
PS: I seldom have any black smoke, even under acceleration. Unless I'm revving in neutral, which can easily do redline. Hence me saying before , it behaves differently under load (hills) as opposed to flat or downhill.
Guess I'm making some progress with your help, but still looks like a long journey... which is fine, it's engineering 🙂 afterall.
And no, unfortunately I don't know any diesel specialists North of brissie unfortunately.
|
20-01-2019
|
|
Grumpy Old XJ Dsl Owner
|
|
Join Date: Jan 2011
Location: Northern Victoria
Posts: 13,809 What Jeep do I drive?: XJ
Likes: 4,596
Liked 6,565 Times in 4,348 Posts
|
|
Quote:
Originally Posted by croitoru
Hi
Thanks again for the reply. I got the gauge for ~ 65 from SCP.
I had to fit it on top of the intake manifold, where the turbo hose comes in from the intercooler. It already had been drilled, and had a blank plug screwed in.
As far as I understand, my wastegate is operated directly from a small vacuum pump fitted on the other side of the ECU located in the engine bay. Being vacuum, should I T there...?
I posted some pictures earlier in the thread, but here it is:
Current tap for turbo gauge:
Vacuum waste actuator (as per my understanding):
Would appreciate your guidance...
R
PS: I seldom have any black smoke, even under acceleration. Unless I'm revving in neutral, which can easily do redline. Hence me saying before , it behaves differently under load (hills) as opposed to flat or downhill.
Guess I'm making some progress with your help, but still looks like a long journey... which is fine, it's engineering 🙂 afterall.
And no, unfortunately I don't know any diesel specialists North of brissie unfortunately.
|
You are a bit mixed up. What you are talking about is the EGR.
the pressure that you are measuring is the charge pressure not the boost pressure.
If you look at the air side of the turbo you will see a fitting with a small hose that runs to an actuator under the turbo. That is the waste gate actuator. If the boost pressure gets too high it opens the waste gate & that allows exhaust to bypass the turbo & so reduce the boost. If this is not working properly it could cause what you are seeing.
__________________
98&01XJVMs,06&07KJCRD's,No longer question authority,I annoy it.More effect,less effort.10000Club
|
Thread Tools |
Search this Thread |
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
All times are GMT +10. The time now is 03:15 PM.
|
|
|
|
Advertisements
|
|
|
AJOR does not vouch for or warrant the accuracy, completeness
or usefulness of any message, and are not responsible for the contents of any
message. The messages express the views of the author of the message, not necessarily
the views of AJOR or any entity associated with AJOR, nor should any advice
be substituted as technical advice replacing that of a mechanic. You agree,
through your use of this service, that you will not use AJOR to post any material
which is knowingly false and/or defamatory, inaccurate, abusive, vulgar, hateful,
harassing, obscene, profane, sexually oriented, threatening, invasive of a person's
privacy, religious, political or otherwise violative of any law. You agree not to post any copyrighted
material unless the copyright is owned by you or by AJOR. The owner, administrators
and moderators of AJOR reserve the right to delete any message or members for
any or no reason whatsoever. You remain solely responsible for the content of
your messages, and you agree to indemnify and hold harmless AJOR, the administrators,
moderators, and their agents with respect to any claim based upon transmission
of your message(s). The use of profile signatures to intentionally mislead or misdirect any member on this forum is not acceptable and may result in your account being suspended. Any trip that is organised through the AJOR forum is participated
at your own risk. If you or your vehicle is damaged it is your responsibility,
not that of the person that posted the thread, message or topic initiating the
trip, nor the organisers of AJOR or moderators of any specific forum. This forum
and associated website is the property of AJOR. No user data is harvested and no information supplied in your registration will be sold for profit.
|