The Camaro Club (UK)

Online Community for all Camaro Owners and enthusiasts
It is currently Sat Nov 02, 2024 2:37 pm

All times are UTC




Post new topic Reply to topic  [17 posts ]  Go to pagePrevious12
Author Message
 Post subject: Re: Loss of power
PostPosted:Fri Apr 22, 2016 10:36 pm 
Offline
Small Block

Joined:Sun Mar 20, 2016 9:56 am
Posts:49
Car Details:1977 305 Camaro
Thanks....I did notice that plate and pipe.....not sure what its for...unless its part of the decommissioned air con system?......there are one or two other multi plugs disconnected ...which I take to be for the air con or some other redundant feature...,it idles errractically occasionally....I'm actually wondering if it is the 350 Instead of the 305 I was told it was....I've looked up online and it appears the quadrajet was not fitted to 305s....although another online decoding site translates it as a 305.


Top
   

Re: Loss of power

Sponsor

Sponsor
 

 Post subject: Re: Loss of power
PostPosted:Sat Apr 23, 2016 8:13 am 
Offline
Big Block
User avatar

Joined:Sun Jan 13, 2013 7:00 am
Posts:1158
Car Details:1986 Camaro, bought into Spain by me in 1993.
305 replaced by a 355, 750 Demon carb, RPM AirGap intake, Brodix heads, Hedman Hedders, 3" Flowmaster exhaust.
Wheels are Summit aluminium 5 spokes, tyres are 245 rear 225 front BF Goodrich.
B/M transmission, battery relocated to the rear, GoodMark 4" cowl steel hood.
Location:Spain East Coast
When the engine is idling is there air coming out of that tube ?
It´s not air con.

My 1986 305 had a plate in the same place but that was EGR, and I don´t think yours would
have been equipped with that.

My 1978 Camaro Berlinetta had a Quadrajet, thought they were standard issue back then.


Top
   
 Post subject: Re: Loss of power
PostPosted:Mon Apr 25, 2016 1:07 pm 
Offline
Big Block

Joined:Mon Mar 09, 2009 12:13 pm
Posts:205
Car Details:1979 Camaro
That looks like EGR to me, but I've never had one with it to know what it does.

A quick look in the Haynes book of lies suggests there should be a valve there, with a pipe that goes back to the carb.

I'd look at plugging it, and look for any open ports on the carb where it may have once attached.


On a side note, although there are a number of symptoms listed, running out of steam when accelerating sounds like fuel starvation to me. What fuel pump are you using?


Top
   
 Post subject: Re: Loss of power
PostPosted:Mon Apr 25, 2016 4:58 pm 
Offline
Big Block
User avatar

Joined:Sun Jan 13, 2013 7:00 am
Posts:1158
Car Details:1986 Camaro, bought into Spain by me in 1993.
305 replaced by a 355, 750 Demon carb, RPM AirGap intake, Brodix heads, Hedman Hedders, 3" Flowmaster exhaust.
Wheels are Summit aluminium 5 spokes, tyres are 245 rear 225 front BF Goodrich.
B/M transmission, battery relocated to the rear, GoodMark 4" cowl steel hood.
Location:Spain East Coast
Quote:
On a side note, although there are a number of symptoms listed, running out of steam when accelerating sounds like fuel starvation to me. What fuel pump are you using?
Maybe the carb needs a cleaning and all open ports plugging.


Top
   
 Post subject: Re: Loss of power
PostPosted:Thu Apr 28, 2016 8:42 pm 
Offline
Small Block

Joined:Sun Mar 20, 2016 9:56 am
Posts:49
Car Details:1977 305 Camaro
Thanks guys....don't think my 77 would have had EGR...I guess if its not a clagged fuel filter I should plug redundant ports. What's best to use?..are there manufactured port plugs or is it case of DIY?.....I don't know the feul pump type.


Top
   
 Post subject: Re: Loss of power
PostPosted:Fri Apr 29, 2016 9:13 am 
Offline
Big Block

Joined:Thu Jul 21, 2011 2:16 pm
Posts:815
Car Details:1980 2nd Gen, 6.0 iron block LS, 4.11 12 bolt axle, Brute Strength Posi, Lowered 2", sub frame connectors, G-braces, Carbon hood and front bumper cover
Location:Norfolk
Sounds like fuel starvation to me... but it could be a number of things.

However I would just go through the following:

Vac leaks:
1. Remove the air filter and check for split hoses between the carb, intake, brake booster and valve covers.
2. Check for disconnected ports - to block them connect a short hose with a bolt or something stuff in the end. It's temporary but it will eliminate possible issues for a start.
3. Start the engine and spray brake cleaner across the hose joints and open ports - if the engine speed picks up that's where your leak is. Obviously don't spray it near anything hot like exhaust manifolds!

Fuel starvation:
1. Check your tank breather isn't blocked. The easiest way to check this is leave the gas cap off and go for a short drive (don't accelerate too hard with a full tank or you'll shoot petrol out the back...)
2. Check your fuel filter - they get badly clogged
3. Check all of your rubber fuel hoses and replace them - modern fuel destroys them and they can become delaminated inside causing a restriction or blockage - replace with R9 grade hose.
4. Replace your fuel pump and rod, it's on the side of the block - not too difficult. You could replace with a suitable electric one if you wanted to.
5. Pull the carb, strip and rebuild it. You'll need a set of gaskets, some carb cleaner and a clean work area.

_________________
My '80 progress thread - hugger orange! Now with LQ9 power - forged pistons, LS2 rods, 236/242, .621/.612, flowed and milled 317 heads. MS3X

4L80e, 12 bolt, 4.11, Moroso brute strength posi, steel shafts.

Subframe connectors, g-braces, solid body bushes, carbon hood and front bumper, custom door cards, Autometer gauges.


Top
   
 Post subject: Re: Loss of power
PostPosted:Sat Apr 30, 2016 12:49 pm 
Offline
Small Block

Joined:Sun Mar 20, 2016 9:56 am
Posts:49
Car Details:1977 305 Camaro
Thanks I've cleaned up the distributor contacts and that seems to have sorted it....plus I was runner ng it too low on fuel...the filter looks fine..


Top
   
Display posts from previous: Sort by 
Post new topic Reply to topic  [17 posts ]  Go to pagePrevious12

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Limited