Welcome to the North American Subaru Impreza Owners Club Wednesday August 23, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC Subaru Models > 'Old School' Subaru Forum

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 07-31-2004, 05:30 PM   #1
Scooby Newbie
Member#: 67367
Join Date: Jul 2004
Default Low power in 1984 GL 10 ??

Girlfriends brother just bought one.
Let me tell you what I have gone through with this thing.

This thing is very very slow, going up a hill it doesn't go past 35, it shifts into 2nd at 2700rpm, and into 3rd even lower. It is perfectly smooth, like it's just a low powered engine. No sputtering, no hesitation, it just feels like it's only got like 50-75hp - the car supposedly only weighs 2000lb. Failed smog test. Smog test dude said it was a clogged cat that is causing the power loss and the failed test.


I removed the back cat, still no power. Removed the Y-pipe from the manifolds along with the front cat, still no power. So I don't think it's a clogged cat.

I retarded the timing some (turned the distributor), no power gain. Advancing the timing only caused detonation, so the timing is set correctly at the distributor.

Even though it's smooth power, I decided to look at the carb. Dinky little two barrel, the back barrel appears to be a vacuum secondary. With the car in park, I floored it and made the front barrel open all the way up, the rear barrel only likes to open about 20 degrees max instead of the full 90 degree open position. I don't know if this is the cause or not. Also, there is only one choke looking type butterfly on the top - in the front barrel. In the back barrel there are threaded screw holes with nothing in them, maybe something is missing - do you know? I have no idea what this carb (and the entire engine is supposed to look like).


Beyond that, I have no idea what to look at on this car. If it was a Ford, I would check to see that the timing belt was put on properly, but I don't have a Subaru book, nor do I know how to adjust the timing there with the belt, or if it even needs it on this car.

Any help?
NitrouStang96 is offline   Reply With Quote

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
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
front mount in a gl-10 mm88swrt Pre-2002 Factory Turbo Powertrain 2 02-22-2009 09:50 PM
1984 gl wagon dies for no reason?? twitch88 'Old School' Subaru Forum 3 11-20-2005 10:46 PM
1984 gl clutch repalcement dentedfender 'Old School' Subaru Forum 2 11-19-2005 01:56 AM
1984 gl clutch replacement please help dentedfender Transmission (AT/MT) & Driveline 1 11-09-2005 10:44 PM
Low power in 1984 GL 10? NitrouStang96 Normally Aspirated Powertrain 3 08-01-2004 12:33 AM

All times are GMT -4. The time now is 04:00 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.