Help, ive overfilled carbs with oil

Engine Oily Bits, Ignition, Fuelling, Cooling, Exhaust, etc.
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johnnydog
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Re: Help, ive overfilled carbs with oil

#21 Post by johnnydog » Sat Mar 26, 2022 12:21 pm

There is a little grub screw on the lower end of the piston body with a slotted head. Simply undo that and pull the needle out. It may be a little stiff but it will come out with a bit of persuasion. Make sure the new needles are the correct ones for the age of your car. The thicker head of the needle should be flush with the body of the piston.
Last edited by johnnydog on Sat Mar 26, 2022 8:34 pm, edited 1 time in total.
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Re: Help, ive overfilled carbs with oil

#22 Post by Buddy Holley » Sat Mar 26, 2022 4:27 pm

Got one out, now how do i get the other needle out when the grub screw is mullered inside the piston? Can I get a second hand/new piston?
1965 Triumph 2000 Overdrive
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johnnydog
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Re: Help, ive overfilled carbs with oil

#23 Post by johnnydog » Sat Mar 26, 2022 8:51 pm

Could you try a very small pointed punch to attempt to shock it into moving? Left hand drills bits are also available, which when they start to bite, are designed to undo the item being drilled into. But due to the small size of the grub screw, and the aluminium body of the piston, the latter may result in more damage unfortunately.
I will probably have a good used piston available, if all your other attempts to release the grub screw fail. Let me know if it would be of use to you if you do go down the route of a replacement piston.
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1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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Re: Help, ive overfilled carbs with oil

#24 Post by Buddy Holley » Sun Mar 27, 2022 11:06 am

Hey Johnnydog I'm gonna have to buy a left handed drillbit as i don't have one, i tried the first option and no joy if the head on the last one is that mullered then it might be more cost effective to get a second hand or new one. I don't mind trying but its get frustrating and expensive just to put the carbs back to a default setting! Anyway great tips, pm me if you have one for sale Regards Matt.
1965 Triumph 2000 Overdrive
Royal Enfield 500 Bullet
Citroën Zsara

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Re: Help, ive overfilled carbs with oil

#25 Post by Buddy Holley » Sun Mar 27, 2022 11:11 am

16483794254945903506442343270630.jpg
1965 Triumph 2000 Overdrive
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Re: Help, ive overfilled carbs with oil

#26 Post by Buddy Holley » Sun Mar 27, 2022 11:12 am

picture of mullered grub screw in piston
1965 Triumph 2000 Overdrive
Royal Enfield 500 Bullet
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Re: Help, ive overfilled carbs with oil

#27 Post by johnnydog » Mon Mar 28, 2022 11:16 am

It maybe me, but how do you open it?
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1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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Re: Help, ive overfilled carbs with oil

#28 Post by Buddy Holley » Mon Mar 28, 2022 2:23 pm

Ah I don't know how to make the picture bit size smaller so you can see the picture
1965 Triumph 2000 Overdrive
Royal Enfield 500 Bullet
Citroën Zsara

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Re: Help, ive overfilled carbs with oil

#29 Post by johnnydog » Tue Mar 29, 2022 12:47 am

I have a pair of good used pistons if you still need one or both of them.
Sent you a pm.
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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Re: Help, ive overfilled carbs with oil

#30 Post by Buddy Holley » Tue Mar 29, 2022 12:30 pm

Hey Johnnydog i haven't received a pm yet, I'll take both. how much do you want for them? also if you find out how much post it will cost ill pay for that pm me Regards Matt.
1965 Triumph 2000 Overdrive
Royal Enfield 500 Bullet
Citroën Zsara

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