Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
09-27-2015, 04:52 PM | #1 |
Registered User
Join Date: Jul 2009
Location: Milwaukee, WI
Posts: 575
|
GM 2 Jet Carb Question
Any tricks to rebuilding them? I took it apart and it looks pretty straightforward.
Anyone do rebushing of the base/throttle shaft bores? Mine's a little sloppy. Alternatively if anyone has a good base with throttle shaft and everything that might work as well. Best supplier of rebuild kits? I'm assuming NAPA has the kits. Luckily mine still has the metal tag on it with the number 7028105. There's a long rod with a spring on it that drops down from the cover and I guess engages the little sprung plunger fitting in the bottom of the bowl--is this supposed to move up and down or is it fixed? No pics, I think it's about 2" long. Not sure why it would be spring if it didn't move--mine won't budge. Thanks in advance for the help. Dave. |
09-27-2015, 06:13 PM | #2 |
Registered User
Join Date: Jul 2009
Location: Milwaukee, WI
Posts: 575
|
Re: GM 2 Jet Carb Question
Pic of the cover and the Rod in question.
|
09-27-2015, 06:18 PM | #3 |
Registered User
Join Date: Apr 2005
Location: Cheyenne, WY
Posts: 742
|
Re: GM 2 Jet Carb Question
Ive not seen that rod before. Cliff's High Performance in Ohio gets good recommendations for working on the throttle plates. In fact that's where my is now.
CliffsHighPerformance.com
__________________
The lid is stuck on my jar of anti seize |
09-27-2015, 08:21 PM | #4 |
Registered User
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
|
Re: GM 2 Jet Carb Question
Thats your power piston, it should push in maybe 3/8s inch and push itself back out. that contacts the power valve..
__________________
Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB. |
09-27-2015, 10:46 PM | #5 |
Registered User
Join Date: Jul 2009
Location: Milwaukee, WI
Posts: 575
|
Re: GM 2 Jet Carb Question
Thanks, I'll have to see if I can gently free it up.....
|
09-27-2015, 11:17 PM | #6 |
Registered User
Join Date: Jul 2009
Location: Milwaukee, WI
Posts: 575
|
Re: GM 2 Jet Carb Question
And operate she does now, thanks. That might account for the sluggish performance at low speeds, just taking off correct?
|
09-28-2015, 06:43 AM | #7 |
Registered User
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
|
Re: GM 2 Jet Carb Question
Hopefully, I'm not sure what the symtoms of the stuck power piston would be. but it can only be a good thing to have it functional again. let us know if you notice any difference in low speed performance..
__________________
Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB. |
09-28-2015, 06:49 AM | #8 |
Registered User
Join Date: Jul 2009
Location: Milwaukee, WI
Posts: 575
|
Re: GM 2 Jet Carb Question
If it was stuck in the down position then it would be flooding the engine at low revs I believe which would follow the sputtering performance and the gas leakage from the throttle shaft--but then again I've never been that good with carbs!
|
Bookmarks |
Thread Tools | |
Display Modes | |
|
|