Car never ran better - THEN!, Seems when hot there is no low end power |
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Car never ran better - THEN!, Seems when hot there is no low end power |
ctc911ctc |
Jun 25 2023, 04:30 PM
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#1
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States |
'74 2.0 - 25K miles
It has been a very long journey. I, with my 17yr old son who is now 21, rebuilt nearly every system including the Engine and Transmission (a nod to Dr. Evil !! ). My son and I have learned a great deal, however, this one has me stumped. The car runs terrific and is strong, smooth and a joy to drive, today I took it around the Lakes here in Arlington MA and at the end of the drive there is a hill with a red light - I caught the red. I waited as the button pushers jaywalked (after they hit the button) and then I waited some more with the crosswalk signs blinking and no one crossing.....sigh OK, there is the green and I ease out the clutch and apply a little gas AND nothing...... nearly idling. I then bury the gas and the car stalls.......and since this is New England everyone starts beeping and yelling - so I get the flashers on and people go around me. I wait another light cycle and get the cars started by pumping the gas and keeping it running over 1500, once it started moving it ran fine. It is almost as if there was zero power below 1500, though when the car was rolling everything worked as you would expect. When the car is cold the low power is as normal as a 90HP engine can be. The temp of the car is about 2/3rds deflection of the center console temp gauge. I am thinking all sorts of complicated thoughts.......head temp sensor is sending weird signals to the Bosch controller OR when super hot the vacuum system starts leaking, etc. So, I thought I would start here - any ideas teeners???? Keep me sane and guide me to the light! CTC911CTC |
r_towle |
Jul 3 2023, 09:11 AM
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#2
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Location location.
The OP may have had issues with the flapper box blowing hot air at the filter. He is moving everything around now, so he may be up and running again soon. |
ctc911ctc |
Jul 5 2023, 09:53 AM
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#3
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Senior Member Group: Members Posts: 893 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States |
*****UPDATE*****
I have decided, after reading other threads on this matter, http://www.914world.com/bbs2/index.php?sho...93742&st=20 http://www.914world.com/bbs2/index.php?sho...=10092&st=0 I will move the pump/filter to the front - QUESTION: This will require 2 180-degree turns in the fuel hose - I was experimenting with my pressure and n-n-pressure rated hose and if the bend is too tight it will start to kink. Any anti-kink ideas - also I experimented with bending my own stainless - could not get it with the bending tool (Brake Line Bender) I have too tight, starts to kink too..... It will also require the cut/plug fast dance or drain the tank.......I will drain the tank........sigh...... Thank you Teeners! |
Jamie |
Jul 6 2023, 01:27 PM
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#4
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Senior Member Group: Members Posts: 1,033 Joined: 13-October 04 From: Georgetown,KY Member No.: 2,939 Region Association: South East States |
*****UPDATE***** I have decided, after reading other threads on this matter, http://www.914world.com/bbs2/index.php?sho...93742&st=20 http://www.914world.com/bbs2/index.php?sho...=10092&st=0 I will move the pump/filter to the front - QUESTION: This will require 2 180-degree turns in the fuel hose - I was experimenting with my pressure and n-n-pressure rated hose and if the bend is too tight it will start to kink. Any anti-kink ideas - also I experimented with bending my own stainless - could not get it with the bending tool (Brake Line Bender) I have too tight, starts to kink too..... It will also require the cut/plug fast dance or drain the tank.......I will drain the tank........sigh...... Thank you Teeners! When I moved the pump under the steering rack several years ago I had no trouble bending a U out of metal fuel line with the right bending tool. I eliminated the sock in the tank as a potential difficult service item and installed a filter before and after the new pump, no problems since. (IMG:style_emoticons/default/confused24.gif) |
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