Mk1 Amal banjo's?

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What you describe is white-ish zn-oxide ceramic crust that formed around tanish-brown-ish fuel evaportation left overs. That could act like hi temp red stud grade Loctite in threads, ugh. OK, then don't just boil in plain water add some vinegar/acetic acid to the carb-shrimp boil to dissolve crust and clean surfaces and maybe loosen the fittings too, but keep eye on it for only handfull of minutes or make etch the carb metal away too.

I've had trouble keeping Trixie's bowl screws tight, tried blue loctite, NEVER again! as also never got em back off again almost stripped out the screw slots. I'll try a few wraps of teflon tape for some white underwear tread wedgie grip.
 
I knew there was a good reason the banjo bolt wouldn't come undone.... :roll:

Mk1 Amal banjo's?



Sorry the contrast is a bit high..Only had a few minutes to grab the image. It looks almost like he's loaded the threads with some kind of silver loaded epoxy, or something(solder? Sodder for you guys across the pond). Not very clever anyhoo.

My next question is...Anyone know the tap size to reform the threads in the float bowl?

Cheers,

Steve
 
Hegel said:
My next question is...Anyone know the tap size to reform the threads in the float bowl?
Click to expand...

It's 3/8 -26 TPI Cycle thread. Attempting to restore the banjo thread is hardly worth the effort in my opinion-better to buy a new float bowl.
 
This is a prefect place to rough up a bit bigger hole and use the epoxy thread repair stuff.
 
Thanks L.A.B

So....It'd be this one then?

http://www.engineering-supplies.com/pro ... -tap-3-8-/

Yeah I know. The price of the tap is more expensive than a new float bowl. :roll:

You know Steve...I think that's what might have been used already. It's strange stuff. Been trying to cut it out of the bolt thread...It's certainly not the remains of the float bowl thread...dunno.
 
What you find is not a thread repair but rusted and/or glued in leak free solution as proper simple epoxy thread repair should leave intact threads when all the rest of the carb and bolt have dissolved away with time and use. My test repair was crooked angle offset hand drill out of steel screw at lowest forward TS case holder, was real tricky to get the cover secured and this screw in square so not in a bind with the others - and mostly did, but do have to start it first or rest don't go in, but its oil tight on and off a number of times so what a carb bottom got to worry about. Or lust bite the routine Cdo bullet and buy buy buy! I'm a bit new here but there's a handful of vendors around the world whose 1st response at my voice is "OH its Easy Money again, in several English accents...
 
Very tempting bwolfie, thanks!

Just out of interest, since I'm still after another set of carbs...Is there any reason I can't use a set of 932's on a non-combat motor?

Might seem like a silly question, but I've still things to learn about carbs.

Thanks again,

S
 
Hegel said:
Just out of interest, since I'm still after another set of carbs...Is there any reason I can't use a set of 932's on a non-combat motor?
Click to expand...

What size are the cylinder head inlet ports? Does the head have an RH number?
 
Yes and ya don't have to bother with trying to match the lip edges of 32mm carb to smaller manifold or head port. When I did this as mere expedient stop gap just to get engine going well enough for initial run in, I had no idea it'd turn out to be a hop up modification till 1000 mile later as I took that long to ease up on testing my 1st ever engine rebuild. Boy Howdy was I ever surprised when I let 'er rip into redline, then a whole bunch of sport bikers were even more surprised. Bigger carb is standard racer upgrade but may have to feather throttle a bit on off idle throttle snaps is all. I didn't change the jetting, just needle grooves, so likely you may not either.
 
What size are the cylinder head inlet ports? Does the head have an RH number?
Click to expand...

I don't honestly know what the ports measure up as. They're both off getting a refurb at Mr Hemmings establishment. I do know that neither have stamps on the top...So I guess they must both be the earlier head type. 30mm? I'm hoping they won't be too much longer.

Reassuring to know that Steve. :D
 
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