Please visit the Club's website https://www.dloc.org.uk/ to join. Visit https://www.dloc.org.uk/adhoc to DONATE towards the cost of the forum.
Please don't post someone's email address to avoid it being harvested by spambots and it's against GDPR regulations.
Always look at "ACTIVE TOPICS" to see all posts in date & time order as they are sometimes moved; or look at "Your Posts".
Please add Reg. nrs. when posting a photo or anything about a car as this will help searches. Don't add punctuation next to nr. as this negates search.
CHANGED YOUR EMAIL ADDRESS since registering?, click your username and check your address in User Control Panel, Profile, Account Settings.
If you want help to register, use "contact us" at page bottom for help.
Please don't post someone's email address to avoid it being harvested by spambots and it's against GDPR regulations.
Always look at "ACTIVE TOPICS" to see all posts in date & time order as they are sometimes moved; or look at "Your Posts".
Please add Reg. nrs. when posting a photo or anything about a car as this will help searches. Don't add punctuation next to nr. as this negates search.
CHANGED YOUR EMAIL ADDRESS since registering?, click your username and check your address in User Control Panel, Profile, Account Settings.
If you want help to register, use "contact us" at page bottom for help.
Search found 8 matches
- Wed Jul 24, 2019 8:32 am
- Forum: Daimler SP250/251, 2.5 V8 & V8-250 Saloon Forum
- Topic: Advance Weight Springs
- Replies: 16
- Views: 3004
Re: Advance Weight Springs
Thanks guys. A misfire at higher revs is actually something I was suffering from and hence the strip down. I'm hoping the fact the mechanism is no longer gummed up will resolve it but if not, next stop will be to look again for the kind of wear you describe fredeuce. When timing with the light I'm s...
- Sat Jul 20, 2019 11:30 am
- Forum: Daimler SP250/251, 2.5 V8 & V8-250 Saloon Forum
- Topic: Advance Weight Springs
- Replies: 16
- Views: 3004
Re: Advance Weight Springs
Hi Peter, My understanding is that it's the other way round - today's lower octane fuels have a greater propensity to knock and so need to run more retarded than with older higher octane fuels. I'm lucky enough to also own a Lotus Elan and it's really sensitive to timing. I assume Lotus set it as ad...
- Fri Jul 19, 2019 12:53 pm
- Forum: Daimler SP250/251, 2.5 V8 & V8-250 Saloon Forum
- Topic: Advance Weight Springs
- Replies: 16
- Views: 3004
Re: Advance Weight Springs
I thought people might be interested in the advance I was getting once I ran the distributor on the car. advance_original_springs.png These are actual advance figures, measured against the 10 degree static advance marker. At first I thought I was way too advanced, then I remembered that I forgot to ...
- Mon Jul 15, 2019 10:56 am
- Forum: Daimler SP250/251, 2.5 V8 & V8-250 Saloon Forum
- Topic: Advance Weight Springs
- Replies: 16
- Views: 3004
Re: Advance Weight Springs
I guess what's happening below 460 crank rpm is kind of academic as the engine never runs at that speed. By the time we get to an idle speed, going on your figures Christopher, the engine should be advanced by a couple of degrees, by which time the spring is probably under tension.
Ian
Ian
- Mon Jul 15, 2019 10:52 am
- Forum: Daimler SP250/251, 2.5 V8 & V8-250 Saloon Forum
- Topic: Advance Weight Springs
- Replies: 16
- Views: 3004
Re: Advance Weight Springs
Makes my brain itch the more I think about this! Ok, in that case what happens when the engine slows down to an idling speed. Friction would tend to retain the weights in an advanced state if there was no tension in the springs to pull them further in? Maybe the friction from the heels of the points...
- Sun Jul 14, 2019 4:40 pm
- Forum: Daimler SP250/251, 2.5 V8 & V8-250 Saloon Forum
- Topic: Advance Weight Springs
- Replies: 16
- Views: 3004
Re: Advance Weight Springs
Thanks again for the replies. If there's no tension on the springs when the shaft is at zero advance then I don't see how you can maintain zero advance up until 460 crank rpm? I'll see how much advance I get on a running engine before I change anything. I realise that in the real world these mechani...
- Sat Jul 13, 2019 10:40 pm
- Forum: Daimler SP250/251, 2.5 V8 & V8-250 Saloon Forum
- Topic: Advance Weight Springs
- Replies: 16
- Views: 3004
Re: Advance Weight Springs
Excellent, thanks guys. Seems like I need to give the longer spring a tweak to increase the tension a little.
Ian
Ian
- Sat Jul 13, 2019 11:16 am
- Forum: Daimler SP250/251, 2.5 V8 & V8-250 Saloon Forum
- Topic: Advance Weight Springs
- Replies: 16
- Views: 3004
Advance Weight Springs
Hello, I'm the new owner of a V8 saloon. I've been going through giving it a thorough service in the hope of fixing a few running issues. Stripping the distributor showed it pretty gummed up so I've given it a good clean. However even when clean and free moving there doesn't seem to be enough tensio...