Exhaust Elbows and Manifold & Water

[MSmith3615]

I was wondering if anyone could tell me how much it should cost to replace both exhaust elbows and a manifold on a 1986 Chevy 350/5.7. Also if bad elbows would cause water to get into engine. Did leak test on manifold and it was ok, but not in very good shape. I was also wondering about how many labor hours it would take to do it? Thanks

 

[prockvoan]

Re: Exhaust Elbows and Manifold & Water

Type of boat?1986?Pass time on replacing the exhaust manifolds and risers.Parts are around $500 to $600,thats manifolds,risers,new clamps and some hoses.Time,bank on 8 to 10 hours shop time if no bolts break off in the block,but then again you didn't state what type of boat.

 

[Haut Medoc]

Re: Exhaust Elbows and Manifold & Water

A sbc with new risers should take two hours a side, Max! .....J

 

[rodbolt]

Re: Exhaust Elbows and Manifold & Water

Jkopec<br /> I have 3 you can do if you promise to only bill me two hours on each boat.<br /> one hull will require the engine box to be dissasembled the other two require the engine to be lifted about 3 inches so the manifolds can clear the studs.

 

[MSmith3615]

Re: Exhaust Elbows and Manifold & Water

Thanks alot for the information, its a 21ft cuddy. Water started getting in the engine when I installed a new impeller. The old impeller was shot. I hope this will solve the water problem, thanks again.

 

[Haut Medoc]

Re: Exhaust Elbows and Manifold & Water

Scolded by the teacher again. Rodbolt, I will always defer to your superior knowledge. However, I did say two hours per side . It was irresponsible of me to quote something like that without knowing the year/ make /model. Both of my Chris Crafts, (I miss them) and my other friends various boats all had SBC's, and they were all way easier to work on than my SBF. I stand corrected........J

 

[Scaaty]

Re: Exhaust Elbows and Manifold & Water

Originally posted by J.kopec:<br /> A sbc with new risers should take two hours a side, Max! .....J

Whoa, take that long soaking the bolts in Kroil!

 

[AaronG]

Re: Exhaust Elbows and Manifold & Water

You might luck out. Mine were really easy. 1 hour and both sides were done. Lots of room, and the bolts all came out without any fight!

 

[Haut Medoc]

Re: Exhaust Elbows and Manifold & Water

I could do the same with both of my boats, I guess it's a matter of how well the boat was kept up & how much room you have to work. Good luck to you. ...J

 

[prockvoan]

Re: Exhaust Elbows and Manifold & Water

A shop will hit you 8 to 10 hours,I know first hand.Last time That will happen.Last time I had pulled a set,it took me about 2 hours to pull an reinstall.Yep,I got clip once!

 

[rodbolt]

Re: Exhaust Elbows and Manifold & Water

sometimes its easy<br /> I have worked on boats that you could lay down and sleep in the engine box and others that required the console to be removed<br /> saying its a 24 cuddy is like saying the car is red. still does not help much <br /> Jkopec <br /> was just funnin with ya, but the offer stands . I have put it off to long so I have to get that done as well. along with 11 other repowers on my board. but I have had some that I cut off with a sawzall and removed the manidolds in pieces. a shamrock with a center console is about the worst. or maybe a few donzi models.<br /> I used to work on a donzi with a 260 merc that the first oil filter change was cause the original filter finally rusted through. had to lift the motor to gain clearence to remove the filter. had a remote mount on the way back in.

 

[prockvoan]

Re: Exhaust Elbows and Manifold & Water

I had a Shamrock,and yes it was a bit-h to work the back end of the engine.The boat I have now has twin 350's,the outsides of the engine are just about impossable to get to.Working inbetween them is hell at best and all this is down in a hole.

 

[Haut Medoc]

Re: Exhaust Elbows and Manifold & Water

Rodbolt, does this mean that I can come out of the corner now