BUKH DV20........ 4 x starts.....working out problems with starting.....

Video sent to my Uncle to help with starting the BUKH DV 20

[@alistairbaird3711]

I have the same with my DV24 and have been told the newer starter motors used by Bukh did not have as much grunt. Keep in mind that both pistons rise and fall together, not one then the other as you might expect. The engine will stop at a point of resistance which is likely to be on a compression stroke. I usually decompress the engine if it's not run in a week or two to reduce the strain on the starter. I notice it doesn't pick up very quickly which might be another, fuel-related, issue.

[@CaptainKevHaurakiGulf]

Why didnt you decompress motor too start?

[@Multiverse27]

We learnt how to do that properly later Kev. We were wondering if the starter motor was not working. It was very good learning curve for us.

[@robinwells8879]

Silly question gentlemen! The ignition switch on DV20 has Off, On, Start and all the way back to engine kill detent at the 11 o’clock position. I have always run mine in the on position and transit swiftly to the kill position past off as I understood that running the engine in the off position was bad for the charge circuit. Am I wrong?

[@Multiverse27]

Hi, yes I run it in the on position, as it won't stay in the start position. When I stop the engine I go to off then engine kill maybe a second on off position before engine kill. Hope that helps.

[@robinwells8879]

@@Multiverse27 thanks Neil. That is reassuring. 👍

[@Multiverse27]

Thanks for your comment. Really hoping it's not that and maybe a lazy starter motor that needs cleaning and servicing . Speaking to some local engineers in Padstow today and hopefully will find some answers.

[@mikecunneen2408]

check the Bukh Owners facebook group! Very helpful people there.

[@Multiverse27]

@@mikecunneen2408 thanks Mike will have a look.

[@MrSwatchway]

Hi Neil.Had a similar problem with my DV20. I was trying to to check the compression by turning the fly wheel by hand and found I could not turn the flywheel. The problem turned out to be a failed Head Gasket allowing water in the cylinder overnight and causing a hydaulic lock. By using the decompression lever and turning over the engine I could clear the water from the cylinder and then start the engine. I also had grey emusifed oil in the Sump leading me to check for failed gasket or cracked head. Turned out to be the gasket. Hope this may help. Link to my overhaul which you may have seen. kzbin.info/www/bejne/bZ6yaKqIgNR-ea8