Perplexing fuel system question - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 06-29-2013, 01:00 PM
Registered User
 
Last photo:
Join Date: Mar 2010
Location: New Jersey
Posts: 35
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Perplexing fuel system question

Hello:

This isnt really a hot rodding question, but you guys seem to be among the most knowledgeable on the internet, so I figured I would post this here. I have a Honda 8hp gas motor from the 70s that I picked up at a yard sale, rehabbed, and am now using to power an air compressor. The gas tank has a little stopcock under with a clear plastic bowl on it that is supposed to collect any sediment from the tank. I had to buy a new stopcock/bowl assembly as part of my rehabbing to get it running. The bowl has a little flange on it that allows it to be held onto the stopcock by a threaded ring. Not sure if I am describing this well enough. See the below exploded parts diagram (part #2).



The problem I am having is that the little bowl appears to be shrinking!! When I first got the part, it worked fine for awhile, then one day when I was about to run the motor, the bowl just fell out because the flange was too small. I figured maybe it had been just barely the right size and had stayed in there by luck, and I ground down a brass washer and made an adapter to hold it in there. Fast forward a year, and the exact same thing happened again. The bowl fell out of my adapter ring!! Is it possible that the ethanol in the new gas is eating away at the plastic? Or is something else causing the bowl to shrink?

If I have not described this well enough, feel free to ask me questions. Thanks for your help.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 06-29-2013, 02:04 PM
vinniekq2's Avatar
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 8,081
Wiki Edits: 0

Thanks: 322
Thanked 783 Times in 749 Posts
Tricity power equipment has a Honda mechanic that knows some of the older stuff.(bc) if you dont get an answer soon I will ask Gary after the long week end
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 06-29-2013, 02:05 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,949
Wiki Edits: 326

Thanks: 760
Thanked 1,013 Times in 849 Posts
Quote:
Originally Posted by eocoolj View Post
Is it possible that the ethanol in the new gas is eating away at the plastic?
You have nailed it in my opinion.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 06-29-2013, 02:47 PM
Registered User
 
Last photo:
Join Date: Jan 2012
Posts: 43
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Yes it is shrinking

Hi all

You are on the right track.In the 80`s when gasahall come out I was changing fuel line`s and rebuilding carbs like there was no tomorrow.That is why it disapearded in 2 months.In the 90`s they played the game with 45 cetane for diesel and destroyed many injection pumps.And now the fuel has all kinds of junk in it.They the power`s that be want cars to be changed as much as possible.So that the roads only have new car`s on them.The kind that they can control. When was the last time you saw a gas sation have it`s tanks pumped clean of water.


2x4`s
Attached Thumbnails
Click image for larger version

Name:	Aug08001.JPG
Views:	29
Size:	164.2 KB
ID:	75282  
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 06-29-2013, 05:52 PM
BOBCRMAN@aol.com's Avatar
Member
 
Last photo:
Join Date: May 2002
Location: Holly, michigan
Posts: 8,130
Wiki Edits: 0

Thanks: 25
Thanked 267 Times in 250 Posts
Yes, the bowl and the rubber seal on the gas tank filler cap. Ate up a couple of them on my tractor/mower.
Reply With Quote Quick reply to this message
The Following User Says Thank You to BOBCRMAN@aol.com For This Useful Post:
techinspector1 (06-29-2013)
  #6 (permalink)  
Old 06-29-2013, 08:54 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 5,246
Wiki Edits: 0

Thanks: 215
Thanked 261 Times in 243 Posts
If the bowl is plastic , it will shrink...decay.
Part number 1 also will crap the bed due to ethanol.
__________________
Fact is stranger than Fiction
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel System question Ratoflic Engine 6 01-23-2010 12:10 PM
Fuel pressure setting question for bypass regulator system hotrodf1 Engine 8 05-07-2007 10:26 AM
Fuel system question 475_enduro Engine 1 02-08-2007 10:23 PM
Perplexing steering problem BMM Suspension - Brakes - Steering 6 10-24-2006 06:02 AM
Last fuel system plumbing question (I hope) william27103 Engine 1 07-08-2005 09:57 PM


All times are GMT -6. The time now is 07:39 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.