Can’t thank this man enough, he’s the sorcerer of knowledge when it comes to these little A series engine, he supplied me with top quality parts that he altered to suit my engine specifications and the amount of extra advise, knowledge and teachings he has given me not just through his videos but in his personal time through private messages which he didn’t have to do is just priceless, wouldn’t have my car on the road or running as well as it is without the help of this man, will definitely be using him again in the future before I go to anyone else.
thanks for everything this season, AC. Have you ever tuned SUs for running in very cold conditions ? Winter is on us in the middle of Canada and temps of -20 to -35 will be common for the next 3 months. When our '67 MGBGT was new (and we still have it) when the cold hit I took it to the BMC dealership with stumbling on acceleration. The service mgr told the mechanic to richen the carbs 3 flats. From your videos, perhaps a needle change would have been better ? Minis at that time had a 12 volt heater band around the dashpot since piston freezing was an issue. Our Volvo 122S had 2 HS6s and no dashpot heaters and freezing pistons was an issue with them as well. Carb air preheat was unknown back then. John in Manitoba.
I agree carb heating would be required. You need to install a wide band gauge and do some monitoring yourself during these conditions, you may find that a different needle profile may be beneficial in the coldest months.
Few months ago i left a message asking for advice on tuning up an old escort with an over-rich cruise jetting using it's original carburettor, which didn't make sense to me as the pilot jet is non-removeable, and set into the casting at a mystery angle, basically impossible to plug up and re-drill accurately for leaning out. I managed to solve the problem myself. All the workshop manuals I had contained no information on how to get into one whole area of the carburettor which could only be accessed by punching out a tiny pin, which was quite difficult but I did it. Basically the carb has a secondary, non adjustable main jet. There is a spring loaded, vacuum actuated plunger which closes a tiny valve which feeds this secondary main jet. Hard to describe but I found out holley carbs have a similar system called the power-jet. Probably something you've come across before but anyway, my "powerjet" mechanism was seized in the open position and the vacuum channel which actuated it was dirty because I didn't know I could access it seeing as there was no information on disassembling it that far in the manuals. Anyway cleaned it out and freed up this system and now my AFR's are exactly like you described in the chart you drew in your last "deep dive" video. I had a spare one of these carburetors so i pulled it apart out of interest and that system was clogged up in that one also. Surprised how bad they got despite that system is never actually submerged in fuel. It's only ever exposed to vacuum below the throttle plate. Immediately noticeable difference in fuel economy and a bit nicer to drive, pretty chuffed with myself to say the least.
Thanks for the tune up on the RSP at MLM this year AC, I thought it was going Ok but it’s got a lovely pop to it now. Good to see the guvnor chugging away on a ciggie in the background 👍🏼
Another cracking episode, AC, and brilliant to see another Metro responding so well to your attentions. I'm still buzzing regarding the tune you did on mine!😁 Question for you - how often should the dashpot need topping up? Many thanks, Steve
Annually, if you keep removing the damper to check it will empty very quickly. The secret is to undo and move to one side and not remove it to check. Yes the metro here was the same spec as Ed wesby’s and hence it needed the same mods and responded very well.
@ACDodd Thanks AC, that makes sense, I'll use that technique. FRUty is out and about a couple more times before the salt hits the road, which is when I'll add the fuel stabiliser and take him off the road for a couple of months or so. Cheers Steve 👍
You mentioned not enough oil in the damper dashpot. As an estimate what is the consumption rate of dashpot damper oil? Or should there be no consumption of the dashpot oil at all?
Cracking video and channel, have a question about a Weber 40 DCOE on a Mini, is it true you cant run a Vacuum advance with the Weber as there is no facility for the Vacuum line ?
@@Markycarandbikestuffnormally they are blanked off. You can get an adapter that screws into one of the ports on top. I’d recommend getting two ports (one for each barrel), then tee them together with equal length hoses to try and even out the pulses. It can be pretty choppy at idle
@@timsminigarage Ah, cheers for that, just something i want down the line, will need to get the big valve head on and a decent cam in the block to justify the Weber.
Correct heat range for a standard 1275 right? BP5ES for 998. I'm taking this info from all the other on the road tuning vids I've watched. Hopefully I've been paying attention
I’ve got an MPI but I still watch and learn from all your tuning videos. I try and learn something new everyday about the mini engines or running gear etc and I’m totally hooked. Thanks for all the material and imparting your knowledge to all us enthusiasts Mr Dodd.
Can’t thank this man enough, he’s the sorcerer of knowledge when it comes to these little A series engine, he supplied me with top quality parts that he altered to suit my engine specifications and the amount of extra advise, knowledge and teachings he has given me not just through his videos but in his personal time through private messages which he didn’t have to do is just priceless, wouldn’t have my car on the road or running as well as it is without the help of this man, will definitely be using him again in the future before I go to anyone else.
Many thanks for the kind words, glad I was able to make such a positive impact!
Thank you for your efforts putting out all the useful information and the on the road tuning posts.
Looking forward to some more deep dives...
thanks for everything this season, AC. Have you ever tuned SUs for running in very cold conditions ? Winter is on us in the middle of Canada and temps of -20 to -35 will be common for the next 3 months. When our '67 MGBGT was new (and we still have it) when the cold hit I took it to the BMC dealership with stumbling on acceleration. The service mgr told the mechanic to richen the carbs 3 flats. From your videos, perhaps a needle change would have been better ? Minis at that time had a 12 volt heater band around the dashpot since piston freezing was an issue. Our Volvo 122S had 2 HS6s and no dashpot heaters and freezing pistons was an issue with them as well. Carb air preheat was unknown back then. John in Manitoba.
I agree carb heating would be required. You need to install a wide band gauge and do some monitoring yourself during these conditions, you may find that a different needle profile may be beneficial in the coldest months.
@@ACDodd thanks AC. I am going to buy a wide band gauge. Any advice here on brands or costing ?
Roll on next season. Thanks for all the effort you go to getting these vids out to the mini community. Priceless
@@Rubberduckeee thankyou
vacuum unit? reminds me of mine.. nice work AC
Few months ago i left a message asking for advice on tuning up an old escort with an over-rich cruise jetting using it's original carburettor, which didn't make sense to me as the pilot jet is non-removeable, and set into the casting at a mystery angle, basically impossible to plug up and re-drill accurately for leaning out. I managed to solve the problem myself.
All the workshop manuals I had contained no information on how to get into one whole area of the carburettor which could only be accessed by punching out a tiny pin, which was quite difficult but I did it. Basically the carb has a secondary, non adjustable main jet. There is a spring loaded, vacuum actuated plunger which closes a tiny valve which feeds this secondary main jet. Hard to describe but I found out holley carbs have a similar system called the power-jet. Probably something you've come across before but anyway, my "powerjet" mechanism was seized in the open position and the vacuum channel which actuated it was dirty because I didn't know I could access it seeing as there was no information on disassembling it that far in the manuals.
Anyway cleaned it out and freed up this system and now my AFR's are exactly like you described in the chart you drew in your last "deep dive" video. I had a spare one of these carburetors so i pulled it apart out of interest and that system was clogged up in that one also.
Surprised how bad they got despite that system is never actually submerged in fuel. It's only ever exposed to vacuum below the throttle plate.
Immediately noticeable difference in fuel economy and a bit nicer to drive, pretty chuffed with myself to say the least.
Well done for sorting you problem yourself. Saved yourself quite a bit of cash in the process.
Hoping to get you to sort my out AC one day but as you say you are always busy
I WILL get my car in your capable hands by this time next year. Thanks again for sharing your wisdom with the community.
Same. Looking out for a South West event.
Thanks for that, looking forward to more next year 👍.
Thanks for the tune up on the RSP at MLM this year AC, I thought it was going Ok but it’s got a lovely pop to it now.
Good to see the guvnor chugging away on a ciggie in the background 👍🏼
Glad you like it!
I really enjoy your videos and am interested in getting some training with you next year.
Keep them going AC, your vids have been a revelation!
How do we book you to work your magic?
Contact me on Facebook messenger
Will-do!👍🏻
Another cracking episode, AC, and brilliant to see another Metro responding so well to your attentions. I'm still buzzing regarding the tune you did on mine!😁 Question for you - how often should the dashpot need topping up? Many thanks, Steve
Annually, if you keep removing the damper to check it will empty very quickly. The secret is to undo and move to one side and not remove it to check.
Yes the metro here was the same spec as Ed wesby’s and hence it needed the same mods and responded very well.
@ACDodd Thanks AC, that makes sense, I'll use that technique. FRUty is out and about a couple more times before the salt hits the road, which is when I'll add the fuel stabiliser and take him off the road for a couple of months or so. Cheers Steve 👍
AC Dodd, is that radiator fan on backwards, on the last car??
Yes
You mentioned not enough oil in the damper dashpot. As an estimate what is the consumption rate of dashpot damper oil? Or should there be no consumption of the dashpot oil at all?
A few drops annually should be all that’s needed.
Cracking video and channel, have a question about a Weber 40 DCOE on a Mini, is it true you cant run a Vacuum advance with the Weber as there is no facility for the Vacuum line ?
It’s true there is usually no vacuum connection, but that does not stop someone modifying it to have one.
@@ACDodd Ah, so it can be added, cheers mate.
@@Markycarandbikestuffnormally they are blanked off. You can get an adapter that screws into one of the ports on top. I’d recommend getting two ports (one for each barrel), then tee them together with equal length hoses to try and even out the pulses. It can be pretty choppy at idle
@@timsminigarage Ah, cheers for that, just something i want down the line, will need to get the big valve head on and a decent cam in the block to justify the Weber.
Hi M8 how can one book you in too get my 1988 mini looked at thanks
Send me a message on facebook messenger.
AC can I ask why you went with BP6 plugs today .. Please
Correct heat range for a standard 1275 right? BP5ES for 998. I'm taking this info from all the other on the road tuning vids I've watched. Hopefully I've been paying attention
Because those engines were 1275 based engines.
I’ve got an MPI but I still watch and learn from all your tuning videos. I try and learn something new everyday about the mini engines or running gear etc and I’m totally hooked. Thanks for all the material and imparting your knowledge to all us enthusiasts Mr Dodd.
@ no problem glad I can help