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I over tightened this I decided to tap a new hole and a cobalt drill bit has snapped off. Is there a thing which can drill out a broken drill bit? Sorry i know this is bad but it keeps coming back to my mind so i may as well say it out loud, can i glue the blanking plate over the top? I have a tin of this
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I'm going to paint my Mini engine and I would like to maintain the unpainted areas on the cylinder head. I think it looks a lot smarter and as it came from the factory. But after cleaning it all up I can only imagine these areas will be the first to start corroding. I suppose I could lacquer it but that sounds a bit rubbish. Or do you just go around with some wire wool from time to time?
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Mar 24, 2023 17:34:07 GMT
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Taking advice from a user on an MG forum i applied steady, even pressure and voila!
With a little WD40 in the latch it now does this!
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Mar 23, 2023 15:04:58 GMT
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I have this roof from a 1973 MGB with a Webasto folding sunroof I have no idea when it was last opened but i can't see any reason why it wouldn't I believe the handle is supposed to go more or less 180 degrees from the staring position but it gets stuck before half way Video It seems to disengage some sort or mechanism but doesn't want to go further. I'm concerned that the force it may need will damage the plastic handle Here's what it looks like overall
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Came back from a 275 mile round trip and it is running better. In normal driving the flat spot isn't very noticeable
It's good enough to use until i can get it tuned
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That was interesting. Thanks
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When you're driving and experience the flat spot pull the choke out , this will enrichen the mixture, and see if things improve. I tried this and i would say it was inconclusive. It didn't seem to make things much better, maybe just slightly 'different'. If i was to guess i'd say it didn't improve it. I haven't adjusted the mixture and will get the car looked by Mini Sport when i can. I think it's running well enough to make it worth putting on their rollers. They always adjust the needle and it could be something like that it needs
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I haven't done much checking as yet and now i've run out of time. It's going on a 80 mile road trip tomorrow so we'll see how it does
It basically drives ok and may even be getting better with more use. It did have a small amount of fuel all those years but i ran some of that out and put a couple of gallons of fresher stuff in before starting. I don't think it's as clean as it could be but at the moment the problem is staying very consistent so i don't 'think' it's a dirty fuel problem. I'll fill it up with new stuff tomorrow but would like to flush the tank out at some point
At the moment it's usable and will do until i think of something else or it deteriorates. I only want to use it a couple of time over the weekend then hopefully next time have it booked in with Mini Sport for a tune up
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Feb 27, 2023 20:05:40 GMT
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Gradually getting this Mini back on the road after 12 years
It ran well when taken off the road and the only difference is another cylinder head being fitted
After discovering the distributor is 180 degrees out I set the timing. 12 degrees at 900 rpm idle and 32 at 4000 rpm
It runs quite well but bogs down at around 2500rpm but is good before and after
The car is away getting painted until Wednesday and I'm sat here thinking through what it could be
I think the timing is ok. Could the mixture help?
I don't know what the plugs look like at the moment
Is a flat spot because the engine isn't getting enough fuel at that moment?
Oh It's got 20w50 oil in the dashpot
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Feb 26, 2023 13:17:39 GMT
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I have got the arm loosened up 🙂
The slave cylinder was leaking and replacing the seal and bleeding that took all the time 🙄
Thanks
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Feb 24, 2023 20:41:42 GMT
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This Mini hasn't been used for the last 12 years Last week I pressed the clutch and the pedal went very light. The arm going to the clutch hadn't sprung back The next day it was back but I didn't press the clutch again until today and it has stuck again It's the arm in this picture not going back up I wonder what I could do to free this up?
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Feb 24, 2023 18:53:15 GMT
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Timing. Although i had already tried it i reversed the leads I also connected the Volvo to the battery to give some more oomph Using some cold start, it started. Sort of So i turned the distributor clockwise bit by bit and gradually it began to cough After about an inch of turning it fired up and ran well. Sounds so good after 12 years It now does this Taking it up the road the clutch arm has stuck down so i will have to fix that next then work on fine tuning it But result! I don't really know why it didn't start before when i swapped the leads but this time having the Volvo involved might have helped combing with the cold start How or why the timing is so out i don't know. I certainly haven't consciously touched the distributor but it appears to be backwards Thanks for the help and advice If there's spark and fuel it should start, correct!
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Feb 23, 2023 20:01:20 GMT
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I set the valve clearances with a 12 thou feeler gauge
I reversed the plug leads and it made no obvious difference
There is definitely a spark at each plug
Compression is even 100-125 psi across all cylinders
Fuel is getting to the carb
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Feb 23, 2023 19:51:39 GMT
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The fact it's actually turning over after 12 years without a head on is a blessing never mind running. There's obviously oil getting in the combustion chamber somewhere, either rings, valve guides or head gasket. What were the mating surfaces like when you put it back together? Remember you're dealing with surfaces where 0.0010" can make the difference between sealing and leaking. The mating surfaces looked ok. I cleaned them with wire wool but didn't measure their flatness Today it seems to be not making the plugs wet
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Feb 23, 2023 19:48:37 GMT
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I think a few things need to be answered, before we start jumping to conclusions, but I think the posts above have been on the right track : i.e it's been asleep for a while, and had no head on the engine for a while, which will influence things 1) Can you hear any compression with it turning over, and is that compression even? 2) Have you done a compression test on the engine? 3) Did you slacken the rockers off when you torqued the head down onto the block (i.e was there any load on the valves when the head was torqued down)? 4) What Carb are you using? 5) Were either the head and/or the block checked the straightness? If so, how? 6) Did you torque the head to spec? 7) Did you use a fresh head gasket? It probably is more than that, but it would be good to know what we're dealing with TBH. It turns over well and evenly. I tested the compression today. There is an even 100-125 psi across the cylinders I didn't loosen the valves when torquing the head down. Today i reset the valves. Around half seemed too tight I'm using a SU HIF44. The same one which it used to run on. Although it seems to be losing its dashpot oil Neither the head or block were checked for straightness I didn't torque the head i just did them up tight from the middle outwards I used a new copper gasket
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Feb 22, 2023 16:43:08 GMT
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Is the thinking that the rings are allowing oil to get past and onto the plugs?
This would mean low compression? So a compression test would be worth while
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Feb 22, 2023 16:01:57 GMT
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I recently fitted another cylinder head to this 1275cc engine
I took the head off one engine and directly onto the other. I didn't alter valve clearances
Fuel is getting to the carb and there is a spark at each plug
The plugs are the correct position on the distributor. It has new plugs
When turning over white smoke can chug out of the carb
There is oil on the plugs
There is no mark on the timing pulley to check the timing
I think the oil in the dashpot has gone somewhere. It was empty and a couple of days ago i put some in and it now seems to have gone again
The engine last ran 12 years ago and has sat without a head since then. It ran for years with the existing ignition / fueling setup
The head is from an engine which hasn't run for a similar amount of time but was running fine when removed
The carb has been sat in a reasonably dusty box but looks clean inside the float chamber
2 gallons of fresh fuel have been put into the tank and pumped through until fresh looking fuel came from the pipe before connecting to the carb
Nothing in terms of timing / ignition has been altered since it last ran
The single biggest thing i can think of is fitting the head from another engine
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Feb 13, 2023 16:53:04 GMT
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Great
Thank you 👍
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Feb 13, 2023 15:34:41 GMT
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I'm fitting a new cylinder head to a Mini engine. The head is coming from a complete engine with pushrods, rocker gear etc. The engine it's going on also has its original pushrods
I'm wondering if I should use the ones coming with the head or the existing ones sat in the block?
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Feb 12, 2023 11:26:28 GMT
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Car is now sold
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