8 replies to this topic

[geepeetee]

Hi

Out on a short run approaching junction and engine on my open classic died. Back home it appears:
Turns over ok
Spark is good
Fuel comes out of pipe when removed from carb
Plugs are dry and no smell of fuel

Car has been stood 15 years but has run great until now.

Is a jet blockage or failure likely?

Any advice on where to start appreciated.

Thanks

Gary

[gazza82]

As the plugs are dry I'd start with the carb.

Try tricking a small amount of fuel into the carb throat .. if it starts, or tries, that would suggest a blocked jet.

[geepeetee]

Yup tried to start. Thanks.

I ll get the carb off!

Any other advice, havent done a full carb stripdown before its rhe original hif su.

Thanks again.

Gary

[geepeetee]

Hi

Removed the bottom plate and jet assembly, blew it, reassembled and seems fine.

Was it likely to be a random one off or should i do / check more?

Thoughts appreciated.

Thanks

Gary

[MatthewsDad]

You say it's been stood for 15 years. Have the fuel tank, lines, float bowls etc. been replaced / flushed out? Fuel filter installed?

[MiniMadRacer]

As above, get one of those throw away fuel filters , and replace it when you can see its "dirty". I have one on my Mini and despite "cleaning" everything you would be amazed how much "crap" is in the fuel / tank... the first one I installed after putting the car back on the road was filty in under 200 miles, the next about 500 miles, now the one on there has been there for a year (I know its lock down) and looks fine still.

 

I use one like this

 

https://www.ebay.co....AyABEgI1rfD_BwE

 

 

 

.

[mab01uk]

SU HIF44 carburetor step by step complete rebuild guide Part 1.
A complete step by step guide showing you how to completely rebuild your Classic Mini / Metro Turbo HIF44 SU carburetor.
Part one shows the complete strip down of every single component ready for cleaning and reassembly.
Easy to follow this guide shows everything you need to know including all the required tools.
Timestamps:
0:00​ Dashpot removal
2:30​ Float chamber disassembly
8:05​ Choke mechanism removal
12:00​ Throttle shaft/disc removal
17:10​ Idle/mixture screw removal
18:31​ Throttle spindle bush removal
21:15​ Dashpot strip down

 

[geepeetee]

Thanks for the advice.

Fuel filter seems a must. Where in the system is it best fitted?

I'll order a couple 😁

[MiniMadRacer]

I fit mine as close to the carb as possible, and try to keep it as far away from the exhaust as possible..