 Sporatic at 2400-2800rpms |
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| HotWat |
  Jul 29 2006, 09:30 PM
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#1
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Newbie  Group: Members Posts: 7 Joined: 16-March 05 From: Los Gatos, CA Member No.: 3,771  |
My '75 2.0 developed a hesitation/sputtering between 2400 - 2800 rpms which is driving me crazy. The car was serviced a few months ago (valves, etc). I have electronic ignition. Any ideas. Thanks.
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| Rand |
Jul 29 2006, 11:42 PM
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#2
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Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
If it only sputters in that rpm range, and clears back up above, it makes me think of a worn TPS (throttle position sensor - the gadget mounted on the side of the throttle-body).
They contacts wear... especially in the most-used range. At any rate, learn more about it here: http://members.rennlist.com/pbanders/ |
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| Bleyseng |
Jul 30 2006, 08:29 AM
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#3
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
To check the TPS just unplug it. Its the big 5 prong thingy on the Throtte body.
If it goes away when you unplug it and drive it then you know the tps is dirty or dead. (IMG:style_emoticons/default/agree.gif) If that doesn't fix it, check for a sticking advance plate in the dizzy. |
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| HotWat |
Jul 30 2006, 07:38 PM
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#4
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Newbie Group: Members Posts: 7 Joined: 16-March 05 From: Los Gatos, CA Member No.: 3,771 |
QUOTE(Bleyseng @ Jul 30 2006, 07:29 AM)  To check the TPS just unplug it. Its the big 5 prong thingy on the Throtte body. If it goes away when you unplug it and drive it then you know the tps is dirty or dead. (IMG:style_emoticons/default/agree.gif) If that doesn't fix it, check for a sticking advance plate in the dizzy. Unplugged the TPS and made no difference. What the heck is the dizzy. |
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| Bleyseng |
Jul 30 2006, 09:24 PM
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#5
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
dizzy= distributor
check the advance plate for smooth operation as rust/nolube will make it stick |
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| Dr. Roger |
Aug 6 2006, 03:17 PM
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#6
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
so what was the problem?
has it been resolved? how? inquiring minds want to know. =-) |
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| rmital |
Aug 6 2006, 03:32 PM
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#7
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Northeast optimist Group: Members Posts: 1,947 Joined: 12-December 05 From: Park Ridge, NJ Member No.: 5,268 |
QUOTE(Bleyseng @ Jul 30 2006, 07:24 PM) check the advance plate for smooth operation as rust/nolube will make it stick ...discription on how to lube the advance plate??....anyone.... Thanks, Ray |
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| Dr. Roger |
Aug 6 2006, 03:53 PM
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#8
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
this guy does a good job of rebuilding a 010 distributor. great pics.
yours is not like this one but some of the details are the same. just a matter of do you want to pull your distributor for a rebuild or pull the contact plate to get at the advance weight assembly for cleaning and lubing. good luck. (IMG:style_emoticons/default/burnout.gif) |
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| rmital |
Aug 6 2006, 05:53 PM
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#9
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Northeast optimist Group: Members Posts: 1,947 Joined: 12-December 05 From: Park Ridge, NJ Member No.: 5,268 |
QUOTE(Dr. Roger @ Aug 6 2006, 01:53 PM) this guy does a good job of rebuilding a 010 distributor. great pics. sorry but...what guy? pics...? |
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| Dr. Roger |
Aug 6 2006, 05:56 PM
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#10
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
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