Gtv-ts - Page 6 - Alfa Romeo Bulletin Board & Forums

  #76 (permalink)  
Old 10-17-2011, 05:27 PM
Registered User
 
Join Date: Feb 2005
Location: Australia
Posts: 1,336
I must admit I am a little envious of the colour of your Junior. I'd like a Giallo stepnose. soon maybe. Should be a ripper once done Nick.

So Miguel, when do you thnk you'll fire this engine up? I am keen to see how this 3D ignition with the VVT works out. Free power is nice.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #77 (permalink)  
Old 10-18-2011, 06:32 AM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
Pancho,

I expect in two weeks time the engine will be running. This coming weekend I already have commitments, my uncle and I are roasting a pig, so it will, at best, be put off for the following weekend.

Last night I wired up the coils and the amps. Tomorrow I will finish wiring up the sensors and the power supply for the ecu. In theory I could crank it up at that point but I am going to hold out a little longer. I don't want to rush into a mistake.

I am now in the the last 10% (maybe 15%) of the project so i made a punch list and nailed it to the wall. It's just a matter of knocking off one item at a time.

Regards,
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #78 (permalink)  
Old 10-18-2011, 07:43 AM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
Has anyone done anything with the oil level sender on the TS block? I have the sender installed but no wires to hook up to it.

Miguel
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #79 (permalink)  
Old 10-18-2011, 01:54 PM
njh1964's Avatar
Senior Member
Gold Subscriber
 
Join Date: Jan 2008
Location: Melbourne, Australia
Posts: 324
Quote:
Originally Posted by Seabird View Post
Has anyone done anything with the oil level sender on the TS block? I have the sender installed but no wires to hook up to it.

Miguel
Hi Miguel,

I've been pondering the same question. I was thinking about simply hooking the oil level sender up to a small LED in the dash somewhere. Not a high priority task, but it would be nice to have a warning if oil level drops for some reason.

By the way, do you happen to know which sender is "oil level" and which is "oil temerature"? My Twin Spark has as sender above the starter motor on the intake side of the engine, and another on a banjo fitting near the oil filter on the exhaust side of the engine.

Regards,


Nick
__________________
Now: 1969 Alfa Romeo GT 1300 Junior - restoration project
Previously: 1974 Alfasud TI - first car
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #80 (permalink)  
Old 10-18-2011, 02:09 PM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
Nick,

I believe, except for the oil level sender, they are the same as the nord motors. The one on the intake side of #4 cylinder is the oil pressure and the one by the exhaust side of #2 cylinder (just rear of the dip stick) is the oil pressure switch (low oil pressure light).

The oil level sender is located, on the TS, by the crank driven distributor cap. When you remove it you will notice it has a long prob that goes down to the sump. Which actually makes me think "will it even work with the nord sump/pump pick up?"

Anyone?
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #81 (permalink)  
Old 10-26-2011, 01:50 PM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
Quote:
Originally Posted by Dr.G View Post
Please post your Weber settings when you tune it. The color is great. Did you save the mixture?

Thanks
Thanks for the compliment on the color. I am really fond of it as well I cant remember the color code at the moment but I lifted it right off a miata so its no trouble to find; competition yellow I think is the name.

The webers came setup with the following:

60mm Velocity Stacks
36mm Venturi
Emulson tube F-16
Mainjet .45
Air Correction jet 155
Idle Jet 55F8
Accel Jet 45

Paul Spruell's race 1750 or hot street 2000 configuration.

Carbs are not my forte so this will be another oppertunity for growth! I am having a Air/Fuel Sensor bung added to the exhaust; Innovate Motorsports LC-1 w/ G5 analog gauge.

We'll see how it goes. I have just a few little details to address and the rubber will meet the road

Miguel
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #82 (permalink)  
Old 10-26-2011, 06:31 PM
Dr.G's Avatar
Senior Member
Gold Subscriber
 
Join Date: Aug 2005
Location: Gypsy
Posts: 1,259
DCOE45
--------------------------------------------------------------------------------



--------------------------------------------------------------------------------
upto 145 BHP; 34; 135; F16; 165; 55F8; 45; 200
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
upto 175 BHP; 36; 145; F16; 165; 55F8; 45; 200
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
upto 210 BHP 38; 155; F16; 165; 55F8; 45; 200
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #83 (permalink)  
Old 10-28-2011, 10:34 PM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
Looks like tomorrow will be a let down. Was working on the car tonight and was not able to get a spark.

The motor turns over easily. I have loaded the inital map per Alfaholics. Removed one of the spark plug wires and inserted a tester. Cranked it over and no spark. Swapped to a different style tester and still no spark.

The ecu screen read out does not indecate an engine that is turning over. The motor rpm never registers. So I was thinking crank position sensor. It is a new sensor, just replaced last week. When checking the output I got .564 kOhms. I checked this at the sensor connector, then at the connection going into the ecu. The same all the way to the computer.

Coils are being feed power. The ecu is also receiving power and has good ground. ...

What is the correct measurement of the cps when at rest?
What is the correct gap between the wheel and the cps?
What technology is the Bosch cps

Help needed.

Miguel
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #84 (permalink)  
Old 10-29-2011, 06:00 AM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
Quote:
Originally Posted by Alfisto Steve View Post
Same sensor as 164 on Motronic spiders.

Test is for .6 kohm between center pin and one outside pin. Other (third) outside pin to center pin is no reading.
Okay found this gem in another thread...seems my cps while at rest is outputting the correct value. And the gap should not be an issue as its all stock components for this system...

Miguel
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #85 (permalink)  
Old 10-29-2011, 07:14 PM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
i was wrong.

So it turns out pin 1 and pin 3 of the cps are not interchangeable. And why not one is ground the other is signal. Anyway the reason the ecu was not seeing the crank turning was the sensor was wired backwards. I was seeing the correct resistance because to the ohm meter polarity does not mater much. Once I started checking for voltage while cranking suddenly it made a difference.

Anyway once we corrected to connection we got spark and a splash of gas later and we were in business.

We played around with the carbs ( )a bit. Let her idle for a little while, not to long. Realized the fuel pressure is probably high. Had a few beers and called it a night.



By the way special thanks to Max from Alfaholics! Not only do they have some of the best kit around they also have outstanding customer support. Max and I were exchanging emails throughout the day. Thanks Max.

Miguel
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30

Last edited by Seabird; 10-30-2011 at 04:58 PM. Reason: spelling & video link
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #86 (permalink)  
Old 10-30-2011, 03:00 PM
PSk PSk is offline
Registered User
 
Join Date: May 2003
Location: Sydney Australia
Posts: 7,026
Send a message via AIM to PSk Send a message via Yahoo to PSk
Quote:
Originally Posted by Seabird View Post
We played around with the crabs a bit.
, sounds nasty,

Pete
__________________
ps: Remember it's all just opinions
'71 1750 Series 2 GTV: http://www.alfabb.com/bb/forums/showthread.php?p=208078
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #87 (permalink)  
Old 11-11-2011, 08:33 PM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
trouble in paradise

After having been out of town all last week and playing catch up on everything else in life I finally got back to playing with the car. Last night I installed new headlights, a set of Delta Classics with Xenon bulbs from Summit. They fit right in with no modifications needed.

Tonight I played with the engine. While I was away I had ordered a colortune kit to better understand what was going on. What I found was number one piston was firing intermittently and number two piston hardly at all . I am actually surprised the engine ran at all.

I disassembled the top of the carbs to check the float levels and they are fine.

I checked the balance between the carbs, they were a little off at first but good now.

I did a compression test, there all the same, though they seem low. My gauge is 6 or 7 years old and there's not telling how precise it still is. I was happy to see they measured the same.

I found that when closing the choke lever on the front carb I was able to get number 2 to fire. Doing so raised the rpms of the motor also.

Does that imply that my fuel air mixture is way off preventing the engine from firing? As I reduce the available air and bring the mixture more inline the piston fires?

Also how much damage am I doing by running the engine like this. I am not driving it I am merely running in short burst to diagnose the problem.

Thanks for the help.

Miguel
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #88 (permalink)  
Old 11-12-2011, 08:37 AM
Seabird's Avatar
Registered User
 
Join Date: Oct 2010
Posts: 370
After a meeting of the minds over coffee this morning, none of which are webers experts , we decided to swap the idle jet assembly from the number four cylinder to the number two cylinder to see what would happen. A miracle! The number two cylinder fired and the number four did not. Also we decided to back out the idle mixture screw a lot more than the suggested 7/8 - 1-1/2 turns and not only did number two run but it ran better. The color seen in the colortune window was whitish. Tried to get video of it but all I got was the motor running; somehow the video got cut short.

I guess I have found my problem though, not enough fuel at idle. Closing the choke increase the vacuum and drew more fuel in. The idle jets that is installed right now are 55F8. I have ordered 60F8 and 65F8 to play with.

Opinions? Comments?


Does anyone know of where weber jets can be bought locally in South Florida?

Miguel
__________________
Miguel
GTV-TS * Laverda 750S Formula * Corvette C6 * e30 M30
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #89 (permalink)  
Old 11-12-2011, 11:22 AM
Dr.G's Avatar
Senior Member
Gold Subscriber
 
Join Date: Aug 2005
Location: Gypsy
Posts: 1,259
excellent work

We'll all benefit from your sleuthing and setup. Did the idle jet look any different?
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #90 (permalink)  
Old 11-13-2011, 01:11 AM
PSk PSk is offline
Registered User
 
Join Date: May 2003
Location: Sydney Australia
Posts: 7,026
Send a message via AIM to PSk Send a message via Yahoo to PSk
Why would swapping the idle jet assembly from one choke to another choke indicate that the engine is not getting enough fuel?

Sounds to me like you have a fault in one of the carburettors?

I'd take them to an expert and get them checked. In the end setting up carbs is dead easy, really, really easy.

If you have no air leaks (note choke 4 is the only choke that provides vacuum to the booster) and all the carbs have exactly the same components it's just a matter of setting the throttle plates so they are exactly the same (tested via a vacuum gauge), you then just have to set each idle jet exactly the same. You do this by simply turning them all the way in and then backing them all back exactly the same number of half turns ... while the engine is off. You then start the engine and adjust the idle mixture until the engine is happy, by turning each idle mixture screw EXACTLY the same number of quarter turns. Once the engine is happy, you alter the idle speed.

As this engine has been converted to carbs it needs to be run ona dyno to check mixture under load but that will only change the main jet size ... will take 15 minutes on a dyno and then you are done.

The biggest problem with carbs is people fiddle and end up with an unbalanced situation ... then you are lost .
Pete
__________________
ps: Remember it's all just opinions
'71 1750 Series 2 GTV: http://www.alfabb.com/bb/forums/showthread.php?p=208078
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Alfa Romeo Bulletin Board & Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off










Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2002-2011 AlfaBB.com All Rights Reserved.



SEO by vBSEO 3.3.2