 high rev, high rev |
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| VRROOMM1 |
 Sep 9 2013, 09:56 AM
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#1
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Member  Group: Members Posts: 117 Joined: 15-July 08 From: mt. dora fl Member No.: 9,302 Region Association: South East States  |
my brother in law has a 1972 1.7 with fi the rpms stay up when you let off the gas the ped is not boun up . if I rev it from the motor it stays reved and slowly gose down. any ideals? thanks doug h
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| Bob L. |
Sep 9 2013, 10:54 AM
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#2
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Senior Member Group: Members Posts: 847 Joined: 7-August 11 From: Austin TX Member No.: 13,411 Region Association: Southwest Region |
I would look at the throttle return spring, it may be weak/stretched.
Possibly "dirt" causing some resistance to the throttle closing easily, so it returns slowly. |
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| JawjaPorsche |
Sep 9 2013, 11:57 AM
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#3
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Advanced Member Group: Members Posts: 3,463 Joined: 23-July 11 From: Clayton, Georgia Member No.: 13,351 Region Association: South East States |
Where the throttle cable comes out the firewall maybe be a problem. My throttle cable was sticking too because there is a metal shelve and then the cable. My cable had a sharp angle coming out the metal shelve. I made sure that excess cable can be pushed down through the engine tin to the firewall. To help prevent the sharp angle, I got an old fuel line about two inches and split it and placed it over the shelve and cable then zip tied it. Has not gotten stuck since. (IMG:style_emoticons/default/beerchug.gif)
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| jimkelly |
Sep 9 2013, 12:14 PM
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#4
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
yeah - disconnect throttle cable and see if engine responds the same by hand throttling.
cables do fray over time. |
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| 02loftsmoor |
Sep 9 2013, 12:40 PM
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#5
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Senior Member Group: Members Posts: 577 Joined: 26-June 11 From: Ft. Worth TX Member No.: 13,243 Region Association: Southwest Region 
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if still slow to come back after disconnecting the cable, check for vacuum leaks
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