I'd suggest a step by step review, Consider the outcomes before dismantling
anything.....I'd normally look at the carbs last but......
First check running engine with a timing light to confirm idle and run
timing,
A vacuum gauge test reveals most mechanical problems eg check inlet manifold
for airleaks
Check spark plugs, are all sooted up?
I guess you've replaced the air cleaner element
Next a cylinder compression test for balance
Check ignition point gap(dwell) then reset timing
Then suspect the needle valves not shutting off. Any grit from burnt lines
trapped is disastrous and hard to remove.
Check that both floats float in gas at a similar height
Back to valve lifter clearances when engine hot
Exhaust system not clogged?
Let's know the results
Peter
----- Original Message -----
From: Rick Harrison <beamertwo(at)hotmail.com>
To: <alpines(at)autox.team.net>
Sent: Tuesday, May 02, 2000 11:35 AM
Subject: Flooding CD150s
> Sunbeamers,
>
> I wonder if anyone can suggest a solution to my problem? Some months back
I
> had a fire under the bonnet (hood?) - it didn't do too much damage (I
always
> carry a fire extinguisher) but it did leave everything very messy. A few
> weeks ago I decided to pull out the carbies (Stromberg CD 150s) to clean
> them up. After the clean up and reinstallation they have been running
really
> rich. I have made sure the jets are aligned properly, the floats are
> adjusted to the correct height, the chokes are not stuck and the needles
> seem OK. I can screw the jets up as far as they can go and still get black
> smoke out of the exhaust pipe at idle. My petrol consumption has gone from
> 28 - 30 mpg to barely 20. I have been running this set up for many years
and
> never had this type of problem. Any ideas? My wife is starting to complain
> about the petrol bills!
>
> Rick Harrison
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
>
This archive was generated by hypermail 2b30 : Tue Sep 05 2000 - 08:59:17 CDT