weber question

[bootlegger]

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I ve been getting my repco boat ready to run next weekend. Ive finally got the intermittent ignition problem sorted but im having dramas with one of the webers.
Its running two down draught twin throat carbs off probably a cortina or something like that.
I cant get the accelerator pump to work.
Im not up on these things and cant work out how the fuel gets from the float bowl to that chamber to squirt.
Ive pulled the carb down. Blown out all the passages with carb cleaner.
I even swapped the diaphram from the other carb that works to that one.
When I pour fuel into the chamber it squirts.
I did notice another diaphram on the other side of the carb. Its seems to be blanking something as it isnt moved by a lever etc.
Im really baffled. Carbs are a mystery to me
By the way the bloody thing sounds awsome. My neighbour rang me and said he loved every minute of me revving it up.
He has an fj with a pretty hot grey in it.

[Harv]

Dave,

Looks to be a pair of DGV Webers, though I'm no Weber expert. Diagram here:

http://www.carburetion.com/diags/38DGASDiaginfo.asp

Cheers,
Harv

[bootlegger]

Thanks harv. I found a link to a guy who was having a similar problem.
There is a one way ball valve in that area. It is plugged by a brass plug so cant be accessed.
I managed to wriggle it with a prodger. I can only assume the ball finally freed up because it is squirting now.
Ill take the boat down the river tomorrow. Fingers crossed its right.
Its a pretty wild engine. Very bush mechanics style.
Home made dry sumping and fresh water cooling. Things held together with bodgey stuff and hoses plugged up with drill bits (seriously).

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[Harv]

Love it. How did they do the dry sump?

Things held together with bodgey stuff and hoses plugged up with drill bits (seriously).

Sounds like some cars I've owned, where previous owners were allergic to spanners. You know you're in trouble when everything that is supposed to have four nuts has only three, and one of those is metric.

Cheers,
Harv

[bootlegger]

Harv its an aircraft oil pump running off the crank for the scavenge.
The original internal oil pump still privides the pressure but a pipe runs back to an oil tank.

[Harv]

Gotta love backyard engineering, especially when it starts to borrow aviation or marine bits .

One of the Normans came with a manifold that had been pieced together from bits of RHS (welding looked like mine... pigeon shit ). The popoff valve on it is an aircraft pressurisation valve, made in the UK by a company that got swallowed up in the 80's.

Cheers,
Harv