TheAMCForum.com Homepage
Forum Home Forum Home > The Garage > AMC 6 Cylinder Engine Repair and Modifications
  New Posts New Posts RSS Feed - New Carb Revving HIGH! PICTURES
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Click for TheAMCForum Rules / Click for PDF version of Forum Rules
Your donations help keep this valuable resource free and growing. Thank you.

New Carb Revving HIGH! PICTURES

 Post Reply Post Reply Page  <123
Author
Message
FSJunkie View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Jan/09/2011
Location: Flagstaff, AZ
Status: Offline
Points: 4742
Post Options Post Options   Thanks (1) Thanks(1)   Quote FSJunkie Quote  Post ReplyReply Direct Link To This Post Posted: Sep/01/2018 at 11:43pm
No problem. Respect of young people in the classic car hobby is a big soap box of mine. 

Do you know the most common reason for why people put others down? For why they insult others? It's because they are insecure about themselves, or more specifically are insecure about how they are seen within a group of people. They are worried about their "status" within that group. They see a newcomer, a younger person, a weaker person, or a more ignorant person as an opportunity to prove they are of a higher status. They insult that person to make that person look weaker while making themselves look stronger.

It's very masculine and caveman. Competitive. Primal. The males of almost all species do it. They compete for status and respect. The young ram wants status, the old ram wants to defend it, so they see each other as threats and fight. The weak are seen as easy targets to demonstrate one's status. Human men do it too. Especially online. Especially in car groups. Most wars and atrocities can be traced to this. "We are strong, they are weak, let's go kill them and take their property." 

We must resist that. Especially if we want young people to join us. We must find ways to be secure in ourselves and not see others as a threat or competition. If we do that, there is no reason to insult others or put them down. Everybody is happier. 

I think the entire world would benefit from that. 


Edited by FSJunkie - Sep/01/2018 at 11:46pm
1955 Packard
1966 Marlin
1972 Wagoneer
1973 Ambassador
1977 Hornet
1982 Concord D/L
1984 Eagle Limited
Back to Top
tomslik View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Mar/07/2008
Location: Colorado
Status: Offline
Points: 680
Post Options Post Options   Thanks (0) Thanks(0)   Quote tomslik Quote  Post ReplyReply Direct Link To This Post Posted: Sep/02/2018 at 7:30am
Originally posted by tyrodtom tyrodtom wrote:

Just leaving out the needle valve itself will cause high RPM.
<span style="font-size: 0.75em;"> </span>
 
 I have had a brass carb. float that had a hole in it, it sunk to the bottom of the float bowl and wouldn't close the needle valve .  Engine RPM went very high instantly.   Had to shut the engine down.
Finally figured out what the cause was.  Different exact cause,  but the same effect.

We all make mistakes, that's how we learn.



leaving the needle out will NOT cause a fast idle but it WILL let the gas out all over the place IF it runs at all....

67 american 290/4speed
Back to Top
tyrodtom View Drop Down
AMC Addicted
AMC Addicted


Joined: Sep/14/2007
Location: Virginia
Status: Offline
Points: 6212
Post Options Post Options   Thanks (0) Thanks(0)   Quote tyrodtom Quote  Post ReplyReply Direct Link To This Post Posted: Sep/02/2018 at 10:50am
Like I said, I haven't done the exact same mistake,  and I didn't say it would cause a fast idle.

But I have installed a carb with a hole in the float, and it  did display close to the same symptom.

When I cranked  it, the RPM ran away, couldn't control it, I cut the ignition off in about 1-2 seconds.

When I looked under the hood, yes, there was gas spilling out of the carb, it probably would have choked itself to a stop from way too much gas if i'd let it run longer, I just didn't give it a chance.

But the point being the car will start,  if it's a quick starting engine, even if there is completely no control of the fuel coming into the carb float bowl.   But the RPM will instantly climb and you won't be able to stop it, except by killing the ignition.

The difference being most of my AMC engines started very easy, ( just shake the keys at it,  as they say )  no long cranking period unless it was very cold.


Edited by tyrodtom - Sep/02/2018 at 10:54am
66 American SW, 66 American 2dr, 82 J10, 70 Hornet, Pound, Va.
Back to Top
Brad2192 View Drop Down
AMC Fan
AMC Fan
Avatar

Joined: Aug/26/2018
Location: Rhode Island
Status: Offline
Points: 26
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brad2192 Quote  Post ReplyReply Direct Link To This Post Posted: Sep/02/2018 at 9:41pm
Originally posted by tyrodtom tyrodtom wrote:

Like I said, I haven't done the exact same mistake,  and I didn't say it would cause a fast idle.

But I have installed a carb with a hole in the float, and it  did display close to the same symptom.

When I cranked  it, the RPM ran away, couldn't control it, I cut the ignition off in about 1-2 seconds.

When I looked under the hood, yes, there was gas spilling out of the carb, it probably would have choked itself to a stop from way too much gas if i'd let it run longer, I just didn't give it a chance.

But the point being the car will start,  if it's a quick starting engine, even if there is completely no control of the fuel coming into the carb float bowl.   But the RPM will instantly climb and you won't be able to stop it, except by killing the ignition.

The difference being most of my AMC engines started very easy, ( just shake the keys at it,  as they say )  no long cranking period unless it was very cold.

It wound up being the issue. The new carb did not come with the piece only the gasket, but when it was out it revved up to the point of almost grenading. The next day when I got out of work I pulled off the line before the float chamber and tossed it in there, wound up working just fine now. 
Back to Top
Greyhounds_AMX View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Nov/14/2009
Location: Kansas City
Status: Offline
Points: 1268
Post Options Post Options   Thanks (0) Thanks(0)   Quote Greyhounds_AMX Quote  Post ReplyReply Direct Link To This Post Posted: Sep/14/2018 at 7:55am
By "tossed it in there" did you mean you disassembled the float bowl, installed the needle and attached it to the float, set the float level, then reassembled the carb?
1968 AMX 390 w/T5
Back to Top
 Post Reply Post Reply Page  <123
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.03
Copyright ©2001-2019 Web Wiz Ltd.

This page was generated in 0.152 seconds.
All content of this site Copyright © 2018 TheAMCForum unless otherwise noted, all rights reserved.
PROBLEMS LOGGING IN or REGISTERING:
If you have problems logging in or registering, then please contact a Moderator or