79 308 carbutertos self advance to hi...

Log Out | Topics | Search Moderators | Edit Profile

Author Message Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 11 Registered: 3-2003 Posted on Thursday, March 20, 2003 - 9:50 am:    Hey Gerrit, Yeah Newman was right, it's Ontario Ca. that I hail. However, I very much appreciate your feed back and picture. The picture was an excellent illustration!!!! I printed it for use Thank you! Chris. Gerrit Visser (Gerritv) Junior Member Username: Gerritv Post Number: 174 Registered: 6-2001 Posted on Wednesday, March 19, 2003 - 9:12 pm:    Oops, I keep forgetting about that one. Oh well if he pays for the flight I would be willing to give a hand :-) Newman (Newman) Intermediate Member Username: Newman Post Number: 1165 Registered: 12-2001 Posted on Wednesday, March 19, 2003 - 9:09 pm:    Gerrit. I believe he is in Ontario California. Gerrit Visser (Gerritv) Junior Member Username: Gerritv Post Number: 173 Registered: 6-2001 Posted on Wednesday, March 19, 2003 - 9:01 pm:    Hi Christopher, I'm also in TO, so if you need local help, send me an email. (Bathurst/Sheppard area) Picture is of throttle linkage. There is a real risk of the throttle wire catching under the RH front carb linkage if you push on the rear carb linkage. Very tempting to do since at least you can see that with the filter housing on the carbs. Reach under air box on the front and follow the cable with your fingers. Ensure it is not stuck under the link. This is most likely reason given your symptoms. Another cause could be the auto linkage for cold running. Don't look for it in the picture, my car doesn't have it. This gadget opens the throttle farther when engine is cold. (Pics are before replating all the bits, plus now have fabric hoses again and real hose clamps) Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 10 Registered: 3-2003 Posted on Wednesday, March 19, 2003 - 2:07 pm:    Hey Hans, Thanks for the feedback. I guess I'll be busy this week end troubleshooting. Chris. Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 9 Registered: 3-2003 Posted on Wednesday, March 19, 2003 - 2:01 pm:    Thanks for the advice Mitchell! Chris Mitchell Le (Yelcab1) Member Username: Yelcab1 Post Number: 505 Registered: 11-2001 Posted on Wednesday, March 19, 2003 - 9:49 am:    Chris, There are many things that could go slightly wrong to have this 2 idle speed problem. In my case, it took me months of suffering to finally fix it. I even disassemble the carbs, looked at the valves, decided (wrong) that they looked ok, not replaced them, and put them back to get the same response. My hi-idle was so bad, the rear header was glowing red. So, after I changed the valves, I was so glad it went away. Just my input. You can decide for yourself what's best in your case. Hans E. Hansen (4re_gt4) Member Username: 4re_gt4 Post Number: 971 Registered: 4-2002 Posted on Tuesday, March 18, 2003 - 11:24 pm:    My car did EXACTLY the same thing when I originally bought it. It most probably is a bad cold fast idle gizmo. Mine is 90deg off - that's 90 compass degrees, not 90 temperature degrees. As the motor warms up, the fast idle cam rotates into a position to speed up the motor. You can remove the fast idle cam and rotate it 180 degrees, but you will still be 90 degrees off!! In my case I had to back out the screw that contacts the fast idle cam so that the entire system is disabled. Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 8 Registered: 3-2003 Posted on Tuesday, March 18, 2003 - 9:46 pm:    Mitchell, Thanks for the advice, but man, there's got to be easier solution as Matt had suggested...... Chris. Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 7 Registered: 3-2003 Posted on Tuesday, March 18, 2003 - 9:43 pm:    Thanks Matt, I'll give it a shot this week-end and give a holler. Thanks, Chris. "The Don" (Mlemus) Advanced Member Username: Mlemus Post Number: 3174 Registered: 8-2002 Posted on Tuesday, March 18, 2003 - 9:40 pm:    pull on the cable to see if it is stuck and make sure the carb sync cables are all attached. Mitchell Le (Yelcab1) Member Username: Yelcab1 Post Number: 504 Registered: 11-2001 Posted on Tuesday, March 18, 2003 - 9:39 pm:    My exact problem was caused by one (of 4) bad needle valve. Changing all 4 solved the problem forever. Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 6 Registered: 3-2003 Posted on Tuesday, March 18, 2003 - 9:37 pm:    I was able to remove the screw. "The Don" (Mlemus) Advanced Member Username: Mlemus Post Number: 3173 Registered: 8-2002 Posted on Tuesday, March 18, 2003 - 9:36 pm:    How many turns counterclockwise did you try? Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 5 Registered: 3-2003 Posted on Tuesday, March 18, 2003 - 9:34 pm:    I did that, but it had no effect....... Sorry. "The Don" (Mlemus) Advanced Member Username: Mlemus Post Number: 3172 Registered: 8-2002 Posted on Tuesday, March 18, 2003 - 9:34 pm:    I e-mailed you my phone number if you need it. "The Don" (Mlemus) Advanced Member Username: Mlemus Post Number: 3171 Registered: 8-2002 Posted on Tuesday, March 18, 2003 - 9:33 pm:    Start the car and as it warms up the RPMs will rise. As the idle rises, turn that screw counterclock wise to return the idle to normal 900 - 1000 rpm After the idle is set, only adjust this screw in the future when the car is warm. Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 4 Registered: 3-2003 Posted on Tuesday, March 18, 2003 - 9:30 pm:    Hey Matt, I did adjust that screw..... As far as the RPMs 3-3.5 & probably higher if I allowed.. Chris, "The Don" (Mlemus) Advanced Member Username: Mlemus Post Number: 3163 Registered: 8-2002 Posted on Tuesday, March 18, 2003 - 9:02 pm:    It would be located between the LR and RR carbs and underneath the air cleaner. It is a screw head that looks like a star. It's a big screw head. you cannot miss it. How high are the rpms when warm? Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 3 Registered: 3-2003 Posted on Tuesday, March 18, 2003 - 8:58 pm:    Hey Matt, Thanks. The RPMs will only increase when the motor hits a warm temperature and will increase beyond that point slightly. The Idle Advance, what would it look like and where would it be located? Thanks, Chris. "The Don" (Mlemus) Advanced Member Username: Mlemus Post Number: 3162 Registered: 8-2002 Posted on Tuesday, March 18, 2003 - 8:37 pm:    HAve you checked your cables to see if they are binding? When you pushed on the linkage, did you press the idle advance on accident? Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 2 Registered: 3-2003 Posted on Tuesday, March 18, 2003 - 8:35 pm:    Hey Matt, Appreciate the offer very much, but I'm in Ontario....... Thanks anyway. Chris. "The Don" (Mlemus) Advanced Member Username: Mlemus Post Number: 3161 Registered: 8-2002 Posted on Tuesday, March 18, 2003 - 8:32 pm:    Chris, Where in So Cal are you? I am in Santa Clarita. If you are local I can take a look at it. Matt Christopher L. Lawrenz (Ferraridude) New member Username: Ferraridude Post Number: 1 Registered: 3-2003 Posted on Tuesday, March 18, 2003 - 8:21 pm:    Please help with advice!!!!! 79 308 carburetors self advance to high RPMs when motor reaches warm temperature, beyond factory specs. Unfortunately, this manifested it's self just right after I had pushed on the linkage to slightly increase RMS (to warm motor). Please help....