1997 mercuiser 5.7 running real bad need HELP.!!!

[jws123]

You shouldn't need the regulator if you have a good pump. I don't think much of GLM either, but instead of getting another pump, just get the regulator. I use Aittex or Merc, Airtex makes the pumps for Merc but I also use BBC pumps

Another thought, do you have the spacer installed (item 5) between the pump and block?
http://www.mercruiserparts.com/bam/subassembly/31865/2344/60

yes the plate is there and the fuel pump i have now along with a few other parts i ordered from another website are turning out to be **** so i am going to make them take their parts back and refund me for selling me trash. will report back once i get the new parts
Thanks.

 

[jws123]

Problem solved got it out on water started to run like **** again got mad floored it blew motor on way in:joyous:.

 

[alldodge]

Bummer for me, good for you I guess :noidea: but sort of understand
What part of the motor blew?

 

[jws123]

Sounded like a thrown rod dont have any intention to look at it at this point just listed boat for sale

 

[jws123]

Bummer for me, good for you I guess :noidea: but sort of understand
What part of the motor blew?

OK so no one wanted the boat or offered to little figured that would happen long story short rebuilt engine it dropped a valve Now the question i have is i want to go 4 barrel now not 2 barrel but i really have no idea what intake to get there is so many different part numbers not sure what fits mine block number is K196500 12 bolt intake can i use a auto intake? i know they dont last as long? if so what would i use i see ones for diff years does it matter? or what marine one should i use i need some opinions.

 

[alldodge]

With 12 bolt intake it is a non-vortec motor. I would suggest going to a junk yard and find a 1995 or later 5.7. Then change out the head gasket and core plugs for brass or stainless. Either that or find a similar engine in a donor boat. A 3 barrel can give you more HP but without vortec heads it no so much.

 

[khe]

Without changing the heads and possibly the cam, a four barrel is not going to do much other than use more gas.

 

[Maclin]

With 12 bolt intake it is a non-vortec motor. I would suggest going to a junk yard and find a 1995 or later 5.7. Then change out the head gasket and core plugs for brass or stainless. Either that or find a similar engine in a donor boat. A 3 barrel can give you more HP but without vortec heads it no so much.

Hey AllDodge, the only 3 bbl I know of is an older Holley, back bore is just one big oval hole with two venturi nozzles and vac secondaries, has like 950 cfm, probably overkill on this one... I know you meant 4bbl but had to razz you at least a little!

 

[alldodge]

Hey AllDodge, I know you meant 4bbl but had to razz you at least a little!

Yuk, yuk, it's all good

 

[jws123]

With 12 bolt intake it is a non-vortec motor. I would suggest going to a junk yard and find a 1995 or later 5.7. Then change out the head gasket and core plugs for brass or stainless. Either that or find a similar engine in a donor boat. A 3 barrel can give you more HP but without vortec heads it no so much.

The original engine is already rebuilt and in he boat i just need a intake and carb the 2barrel i have sucks as you know i am trying to find what 4 barrel intake and carb to get and what automotive/marine ones fit. I have been looking up automotive ones i know i have to change it more often but they are way cheaper i just dont know what years fit.

 

[alldodge]

I would suggest this intake
http://www.michiganmotorz.com/edelb...G6BGCUf_r9S4N5V6TwcMsLu-8C_GbW9MaAk9ZEALw_wcB

and the Edelbrock 1409 carb

 

[jws123]

I would suggest this intake
http://www.michiganmotorz.com/edelb...G6BGCUf_r9S4N5V6TwcMsLu-8C_GbW9MaAk9ZEALw_wcB

and the Edelbrock 1409 carb

Ok thanks will look into both.

 

[jws123]

I would suggest this intake
http://www.michiganmotorz.com/edelbr...MaAk9ZEALw_wcB

and the Edelbrock 1409 carb

Even tho it says [FONT=&quot]1955-86 ik thats for cars but it should work right? even tho mine is a 97[/FONT]

 

[alldodge]

Even tho it says [FONT=&quot]1955-86 ik thats for cars but it should work right? even tho mine is a 97[/FONT]

It has a 12 bolt intake so should be fine.

To double check myself Bondo and/or Scott Danforth

 

[Scott Danforth]

1957-1985 is a 12 bolt intake, with all bolts at an angle. 1986-1995 is a 12 bolt intake with the center bolts at a different angle the outer bolts.

1996 and newer vortec manifolds have 8 vertical bolts

 

[alldodge]

Looks like it will not work.
Need the Edelbrock 2506 which is more expensive

 

[jws123]

Just came across a epicly cheap EFI engine with vortec heads intake fuel injection ect that i could not pass up it sucked in water due to bad risers if i rebuild that engine the risers i have off my old engine/heads should still fit correct? they are brand new or do vortex heads use diff risers? if not i am just going to go buy new intake and carb for orig engine and get it over with for now.

 

[alldodge]

Exhaust is the same bolt pattern, so no issue. A motor which has hydrolocked while running can break or bend connecting rods among other things

 

[jws123]

Exhaust is the same bolt pattern, so no issue. A motor which has hydrolocked while running can break or bend connecting rods among other things

Yea i know but i only bought it all for $350 :lol: with the fuel injection that alone is worth it il have to check it out to see whats bad but just ordered a intake and bought a carb locally for now ty for the help.