 $&%&*% carb linkage, does it ever stop needing? |
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| tat2dphreak |
 Apr 13 2010, 09:20 AM
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#1
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stoya, stoya, stoya  Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region   |
ok, so I'm driving home last night 80 degrees, breezy... beautiful day, car is running GREAT!
clicking along at 65, everything is great... I go to make the second to last turn to get home( maybe 1 mile from home) and when I hit the clutch, the motor stays humming at 3500 rpms... like the throttle is stuck... there's no place to pull over at this point(ditch on one side of the road, and the other is a concrete barrier where they are doing construction... so the last mile, I cruise it as easily as possible home, using 3rd gear to keep it from accelerating too fast... my oil temps stayed below 185(my CHT still doesn't work, I think I flat got a bad gauge from VDO, I am going to break down and buy another whole gauge kit. once home I pop the engine lid, one side of the linkage bar had slipped down the hex bar, basically holding one carb open a little, which was the throttle problem. I tighten everything back up, re-set the springs(one had slipped out of the spring hole on the throttle shaft) re-sync, everything seems ok again... my question is this... should plan on this being the norm? hat I need to check and tweak the linkage every couple of weeks? also, since I was basically running very out of sync for a mile or so, should there be anything I need to check? any potential damage to watch for? |
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Replies
| McMark |
Apr 14 2010, 09:46 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Check out this classic thread.
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| tat2dphreak |
Apr 15 2010, 08:44 AM
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#3
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region |
QUOTE(McMark @ Apr 14 2010, 10:46 PM)  I remember that. and we did modify this linkage some to try and get the geometry correct.... for example we drilled new holes in the base plates to lower the bar for a much more squared geometry. we also used heavier duty drop links, and put nylock nuts on the back side of the drop links. the other issues up til now I really think were more compensating for the fact my carbs are getting worn out. |
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| Mark Henry |
Apr 15 2010, 10:55 AM
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#4
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(tat2dphreak @ Apr 15 2010, 10:44 AM) the other issues up til now I really think were more compensating for the fact my carbs are getting worn out. And what wore them out??? The hex bar linkage. |
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Posts in this topic
tat2dphreak $&%&*% carb linkage Apr 13 2010, 09:20 AM
realred914
ok, so I'm driving home last night 80 degrees... Apr 13 2010, 09:23 AM Grelber I've never had a bit of trouble with my hex ba... Apr 13 2010, 09:33 AM tat2dphreak ok, it's a brand new CB perf. linkage... proba... Apr 13 2010, 09:41 AM DBCooper Nah, just fix it and you're done. People comp... Apr 13 2010, 10:07 AM yeahmag You need to give the set screws a good "omph... Apr 13 2010, 10:11 AM Vacca Rabite Use nylock nuts on the turnbuckles. I had the sam... Apr 13 2010, 10:12 AM Root_Werks Everything on your linkage should be double nutted... Apr 13 2010, 10:15 AM tat2dphreak happen to remember the size of nylock? I know it w... Apr 13 2010, 10:15 AM yeahmag I thought the arm that uses an allen head set scre... Apr 13 2010, 10:16 AM tat2dphreak no. the arm piece that actuates the throttle slid ... Apr 13 2010, 10:20 AM yeahmag Is this a CB Performance piece? All the CB's I... Apr 13 2010, 10:22 AM tat2dphreak
yep CB perf. I bought it last year. it came with ... Apr 13 2010, 10:24 AM Jake Raby It is what you make of it..
Either you can get i... Apr 13 2010, 10:30 AM yeahmag Odd... So it doesn't look like this anymore?
... Apr 13 2010, 10:32 AM Root_Werks Not sure if it helps, but the linkage on my carbs ... Apr 13 2010, 10:38 AM bandjoey OT but applies: Hurry up Jake and get the new lin... Apr 13 2010, 10:53 AM dr914@autoatlanta.com I feel your pain having to deal with the heartbrea... Apr 13 2010, 11:01 AM yeahmag It just takes time. I've been setting up the C... Apr 13 2010, 11:03 AM yeahmag ...and an LM-1 permanently mounted doesn't hur... Apr 13 2010, 11:04 AM
neil30076
...and an LM-1 permanently mounted doesn't hu... Apr 14 2010, 10:46 PM tat2dphreak
:agree:
I was thinking the same thing last nigh... Apr 13 2010, 11:05 AM yeahmag Shoot some pictures of your linkage: overall, left... Apr 13 2010, 11:08 AM Root_Werks Don't know who makes this style, but I do like... Apr 13 2010, 11:10 AM flipb Here's my solution.
http://www.914world.com/b... Apr 13 2010, 11:19 AM SUNAB914 FI,
Blah, blah, blah Apr 13 2010, 11:21 AM McMark Don't waste your money on a VDO CHT setup. Re... Apr 13 2010, 12:05 PM tat2dphreak
Don't waste your money on a VDO CHT setup. R... Apr 13 2010, 12:20 PM yeahmag I use one too... Love it. Apr 13 2010, 12:20 PM Vacca Rabite :agree:
I have one in my 914.
Mike saw it and lik... Apr 13 2010, 07:12 PM FourBlades You probably know this, but just in case: your eng... Apr 13 2010, 07:53 PM tat2dphreak no, I did not know the expansion was that great. I... Apr 13 2010, 08:04 PM FourBlades Nothing wrong with a few :beer2: :beer2: :beer2... Apr 13 2010, 08:21 PM Mark Henry If your engine expanded 1/2" that would be .2... Apr 13 2010, 08:39 PM Chris Hamilton If you cant keep the arms from slipping put a coup... Apr 13 2010, 08:53 PM Vacca Rabite mark is right. The engine expands when warms, but... Apr 14 2010, 06:15 AM Jake Raby I've found that TIV engines expand roughly 1/8... Apr 14 2010, 08:34 AM Philip W. chris-
I know you really hate the FI ?!?!?... Apr 14 2010, 08:52 AM Chris Hamilton
chris-
I know you really hate the FI ?!?... Apr 14 2010, 06:44 PM biosurfer1
I've had some second thoughts about bringing... Apr 14 2010, 09:14 AM Jake Raby
I've had some second thoughts about bringin... Apr 14 2010, 10:03 AM bandjoey If it's that good, shoot a quick DVD of the in... Apr 14 2010, 11:28 AM Jake Raby
If it's that good, shoot a quick DVD of the i... Apr 14 2010, 08:22 PM DBCooper Look, spend a few minutes with it and figure the C... Apr 14 2010, 12:11 PM biosurfer1 I have spent HOURS with the hex linkage. I know ex... Apr 14 2010, 12:35 PM McMark
It works just fine. As in just barely. :P Apr 14 2010, 01:32 PM tat2dphreak
kinda the way I feel too... when it's working... Apr 14 2010, 01:35 PM DBCooper
I've dated women that were less needy.
:lo... Apr 14 2010, 03:11 PM Mark Henry I'd tool up and make a HQ center pull linkage,... Apr 14 2010, 07:04 PM Dr Evil
I'd tool up and make a HQ center pull linkage... Apr 14 2010, 09:28 PM tat2dphreak got down to the real root of the issue... the trea... Apr 14 2010, 08:54 PM tat2dphreak
got down to the real root of the issue... the tre... Apr 19 2010, 10:27 AM McMark Glad you found something wrong. It's nice to ... Apr 14 2010, 09:15 PM tod914 That's $13 Canadian Mike. Apr 14 2010, 09:52 PM Mark Henry
That's $13 Canadian Mike.
Yep so that ... Apr 15 2010, 10:51 AM tat2dphreak
well, that plus the 20+ years since these were ma... Apr 15 2010, 11:23 AM Mark Henry
well, that plus the 20+ years since these were m... Apr 15 2010, 11:36 AM |
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