Mercruiser 4.3 Alpha One problem - loses power

[dubs283]

You may find an oem fuel line new, maybe

Sierra sells a flexible pressure rated fuel line in 2 lengths that has the correct ends/connections in place. Plug n play

 

[alldodge]

You would need to bend.
Go to local auto parts store and find Break or fuel line with same fittings and close enough length

 

[minj]

You may find an oem fuel line new, maybe

Sierra sells a flexible pressure rated fuel line in 2 lengths that has the correct ends/connections in place. Plug n play

Oh flexible, that would be so easy. Would you have a link to that or it is standard for mercruiser 4.3 alpha one 4bbl?

 

[minj]

You would need to bend.
Go to local auto parts store and find Break or fuel line with same fittings and close enough length

Ok! I know someone that has the tool to bend. I should have measured the lenght before leaving the boat!

 

[alldodge]

Could also take the larger nut off the carb where fuel line attaches and take with. This way you can also check fuel line to thread fitting

 

[Scott Danforth]

If I replace the fuel line, does it come premade with the fitting or I have to do it myself (the bending and connectors)?

You have to make it yourself. It's just 3/8 double flare brake line with brass tube nuts

 

[minj]

You have to make it yourself. It's just 3/8 double flare brake line with brass tube nuts

Thank you - do I use teflon too when reinstalling?

 

[Scott Danforth]

Thank you - do I use teflon too when reinstalling?

No. It's an SAE inverted flare fitting

 

[dubs283]

Oh flexible, that would be so easy. Would you have a link to that or it is standard for mercruiser 4.3 alpha one 4bbl?

You could most likely find here in iboats ships store

 

[minj]

Ok - here is the final update!
Carb filter was the issue. It was dirty/black, blowed in it to see how much pressure it require to release gas and it was stuck a little. Change it for a new one, cut the gas line, created a part of a fuel line with fitting from a brake line, joined the 2 with fuel flexible hose/ 4 clamps.
Started the boat, got out of the water within seconds, no loss of power!

I say thanks to everyone that contributed to my post!

 

[dubs283]

Like dis?

 

[minj]

Like dis?

I had that in the fuel water separator. Maybe if I cut open the filter or the carb filter I would find more. I’m wondering why sand would be in there!

 

[dubs283]

Is mostly corn starch from ethanol. Keep farming, America!

 

[minj]

Is mostly corn starch from ethanol. Keep farming, America!

I guess that's what it is! That filter appears to have a valve so the gas does not come back. The one I have purchase from GLMmarine does not have it.

 

[dubs283]

That has to be the most beat up fuel line connection I've ever seen

Flare wrench, not vise grips folks

 

[minj]

That has to be the most beat up fuel line connection I've ever seen

Flare wrench, not vise grips folks

, I can't tell for the filter but thank you for letting me know! I suppose previous owner hasn't changed it in a while...

edit: oh the fuel line, yeah... that hex nut was rounded...