dauntless 225 V6 - Off-Road Forums & Discussion Groups
Go Back   Off-Road Forums & Discussion Groups > Jeep > Jeep-Short Wheelbase

Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

LinkBack Thread Tools Display Modes
Old 12-05-1999, 06:52 AM
Posts: n/a
Default dauntless 225 V6

I have recently purchased a 71 CJ5 with an old probably aboused motor but I'm not ready to swap motors yet. I have dual exhaust with tailpipes exiting in front of the rear tires and it's backfiring through the exhaust. I've checked the timing to no avail. It backfires only on the right bank and I ran a wet and dry compression test with the folowing results: 1)165,2)175,3)160,4)150,5)170,6)175. the wet compression doesn't significantly differ from dry, and there is no change at all with the cylinder in question (#4cyl.). My question is whether there is something else I can check before pulling the head to check the exhaust valve?

Semper Fi!
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Old 12-05-1999, 10:32 AM
Can't Get Enough
Join Date: Sep 1999
Location: Cotopaxi, Colorado
Posts: 1,036
Thanks: 0
Thanked 0 Times in 0 Posts
dorfs is an unknown quantity at this point
Default Re: dauntless 225 V6

You can hook up a vacuum guage to the manifold. If it flutters fast at idle, it probably means a valve, or valve spring. Another thing to check is for hairline cracks between two cylinders in the dist cap. Cross-fire can sometimes cause this, by firing the spark plug on an open valve. If the firing order is correct, you can isolate which cylinder it is by pulling one plug wire at a time, until it goes away.

Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Where you live
Primary Off-Road Vehicle
Primary Off-Road Vehicle
Secondary Off-Road Vehicle
Secondary Off-Road Vehicle
A few details about yourself
Your hobbies, etc
Your job
Please select your insurance company (Optional)
Date of Birth
Your date of birth and age are displayed in several places on the forum. Only the administrator will have access to your date of birth should you choose to hide it via the privacy option below.
Month Day Year


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.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

All times are GMT -5. The time now is 05:35 PM.

Powered by vBulletin® Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.2.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1994-2009, VerticalScope Inc. // Off Road forums & discussion groups sitemap
side by side | atv | dirtbike | snowmobile | sandsport | competition | land use | Jeep | Toyota | Ford | GM