Search found 3 matches

by alpine1592
Mon Oct 21, 2019 10:33 am
Forum: Technical queries
Topic: Sunbeam Alpine cough
Replies: 6
Views: 1547

Re: Sunbeam Alpine cough

I did a check over the weekend and could not replicate trhe problem with the car at standstill. Revved up to 4500 for 30 seconds or so and no coughing so looks like the problem only happens under load. What doesn't help though is the fact that the problem is intermittent and I have driven a full day...
by alpine1592
Wed Oct 16, 2019 12:30 pm
Forum: Technical queries
Topic: Sunbeam Alpine cough
Replies: 6
Views: 1547

Re: Sunbeam Alpine cough

Havent actually tried that so good call Harvey. Will give it a try and come back to you.
by alpine1592
Tue Oct 15, 2019 10:52 am
Forum: Technical queries
Topic: Sunbeam Alpine cough
Replies: 6
Views: 1547

Sunbeam Alpine cough

A brain teaser for you! My car, which I have owned for 40 years, is a 1965 Sunbeam Alpine Series IV, 1592cc engine with a 28/36 Weber carburettor. About 4 years ago it developed a backfiring cough when accelerating, particularly going uphill. The cough happens when pushing the revs up around 4000rpm...