Running rich?

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
S

sdy

New Member
Posts
23
Location
Skipton, N Yorks
Hi,

I recently bought a 1980 series 3 2.25 petrol swb. It has been running fine but when I took it for a run out yesterday the idle revs appear to have dropped to a level at which the engine would occasionally stall and the engine appears to be running very rich as there is a lot of backfiring and crackling from the exhaust when lifting off the throttle, even between gear changes.

I am a novice with a spanner but eager to learn. Can anyone give me some pointers as to how I may go about diagnosing the problem and making the necessary adjustments? I assume it is carb related.

Many thanks.
 
I would start with some more basic things before stripping the carb!

At least check to see if you are actually over fuelling as s start. Check your plugs - if you are over fuelling you would normally expect to have black plugs and check them all.
 
Check the distributer cap the rotor arm and check and adjust the points and clean and regap the plugs before you pull the carb to bits.
 
Backfiring on overun is a symptom of being lean, this could be caused by a loose carby, or loose manifold to head bolts.
Its possible that the engine is lean on idle and rich on power which would be a carby issue, get a can of carb cleaner and drown it.
 
You must log in or register to reply here.

Similar threads

W
Land Rover series 3 Daihatsu diesel
Replies
8
Views
588
tottot
tottot
W
Land Rover series 3 diesel
Replies
3
Views
608
Wildefalcon
W
T
Ring gap, new rings? Or new pistons?
2
Replies
26
Views
1K
ThomasLRNL
T
O
Zenith 36 IV
Replies
9
Views
740
Orb
O
Y
Freelander 2 (LR2) 2013 SD4 auto rev drop (solved)
Replies
9
Views
571
Yampy
Y
Back
Top