carb question

[Darrendude]

Re: carb question

Yes Jimmy the intake /exhaust are on the same side. Vacuum is at 19 at idle and steady. The leak is on the #4 port. I did submerge the carb for about 3 hrs. This is a cheap lake boat , so i am not worried about breaking down as if I would in the ocean. Can I arc weld the manifold? The tick tick tick is coming from a 16th of an inch hole on the exhaust manifold about an inch from the head. The motor idles perfect at 700 rpms, the compression is 150,150,140,150. Despite what don says , it runs great as far as I am concerned. Ya there may be problems, thats why I ask questions here. What do you expect from a $200 boat.<br /><br />Thank you for your input

 

[Don S]

Re: carb question

I wouldn't try to arc weld the manifold unless you have someone with the proper equipment and rod types to do the job. Cracking would be the biggest concern.<br />Regarding my remark about running great, your word "SEEMS" to run great was my reason for the statement.<br />To be honest, if you have a $200 boat and you have no problems with the way it runs, stop messing with it if it works.

 

[trog100]

Re: carb question

well darren.. u should know better than to come on here asking why your mixture screw isnt where it should be.. your engine is totally worn out.. your boat is in danger of sinking.. and think your self lucky u never mentioned your outdrive.. else u would need a new one of those as well..<br /><br />for $200 it runs wonderfully.. enjoy it while it does.. cos $200 should just about fill the gas tank not buy the boat..<br /><br />when u buy something that cheap u need luck on your side.. it might well run well for quite some time.. if luck aint on your side and things start to go wrong early that $200 dollar boat wont stay a $200 boat for long..<br /><br />trog100

 

[Bondo]

Re: carb question

If the Hole is Only 1/16th",<br />Just Run a Screw Into It.............KISS Engineering..................

 

[Darrendude]

Re: carb question

You guys are right JB weld didnt hold. Worked great for about 15 minutes lol. I like the screw idea Bondo, but after further examination its more of a crack then a hole. Anyone know what a new manifold costs? (holding my breath) <br /><br />Trog I agree

 

[trog100]

Re: carb question

if the crack is small a tapped hole or two a couple of scews praps and a little tin plate over it with some gooey gasket stuff that dosnt go hard might fix it.. JB weld isnt the right stuff to use in the circumstances.. u need something that stays flexible..<br /><br />it would be interesting to keep this thread going..<br /><br />how to keep a budget $200 boat alive and going and keep it as close to that original purchase price as possible... he he he<br /><br />as for that mixture screw not being in the right place.. totally ignore it.. it dont matter in the slightest.. <br /><br />trog100

 

[Reel Poor]

Re: carb question

Maybe that 140psi cylinder exhaust valve got a little rust aroud the seat and is trying to inhale some of that exhaust on the intake stroke. But, "HOW COULD THAT WATER GET IN THERE?"

 

[Darrendude]

Re: carb question

Reel poor, there is no water in where the hole/crack is. It is right where the manifold meets the head about a half inch from the head, unfortunatly its on the bottom side. I will try to take it off tomarrow. My only fear is the bolts will either strip or break off. There is alot of rust on them. The cylinder in question has 150 psi, which is factory spec from what I have heard. For a 29 yr old boat the compression is fabulous lol How can that be? I have NO history on the boat at all , but when I adjusted the valve the other day, much to mu suprise when I removed the valve cover it was spotless Looked brand spankin new, you could of eatin off it lol.

 

[trog100]

Re: carb question

just had a look at your pics darren.. never realized it was a project boat and is up to $2000 so far..<br /><br />have u only just started on the "mechanicals".. ??<br /><br />trog100

 

[Darrendude]

Re: carb question

Trog that $2000 includes everything from registration , trolling motor fish finder, ss prop,4 new seats, stereo/ cd etc.Most of which I can remove and sell if needed. Mechanicals appeared ok except for the new manifold problem. But again, this is a LAKE fishing boat and I use the trolling motor 90% of the time. I see I can get a new manifold for around $250 so thats not too bad .

 

[trog100]

Re: carb question

yes if the only prob seems the manifold it makes sense to replace it.. what u have done so far looks nice.. my thoughts on old mechanical things are not to pull em apart unless u have to thow.. when old things are running okay its best to leave em that way.. he he<br /><br />my son has just picked up a cheap £400 20 foot boat.. it seems bascally sound and only has a little 9.9 chrysler outboard to push it along which we aint tried yet..<br /><br />its a Norman 20.. dates back to the early eighties and is a common english river cruising boat.. it can take up to a 90 hp outboard and might get one if we can pick a used one up cheap enough..<br /><br />best of luck with yours..<br /><br />trog100