Mercruiser 165 hp help needed!

fusioncses

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Jun 15, 2008
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3
Hello all!

I just got a 1976 Glastron T-187 with a Mercruiser 165 HP inline 6. This thing is rough, but I think it can be saved. Right now, I just want to get it running enough to take it out a couple of time to see if I like it enough to put a bit of money into it. Its pretty solid (except for a small soft spot in the floor), but there's to be something fishy going on with the engine. It has a carb from a 3.0l engine (tag 1389-9562) which is quite rigged onto the manifold (due to holes not lining up?). It's obvious that the carb; right one or not needs to be rebuilt. Here are my questions:

1) Since I have the wrong carb for my engine, can I use the one I have or should I buy the right one? Aside from the bolts and slight offset, everything else seems to connect OK. (I have access to a machine shop, so making a nice adapter plate is no problem)

2) If I rebuild the current carb, will it have enough cfm (the 165 is a 4.1l/250ci right?) and where can I find a kit?

3) If I need to buy the right carb, where can I find a suitable reman (part numbers anyone?)?

4) If I do need to get a new carb, should I go with the OEM or is there something else I can use?

Please keep in mind, this boat needs a lot. I'm not looking for the ideal solution, just the budget one. I'd like to play with it this summer without putting much into it and if I like it, do a nice overhaul this winter. On my list of things to replace is the manifold as it is getting pretty thin, thermostat housing, exhaust elbow, bellows and what ever else looks rough. Engine seems solid compression is within 15% across the board so I might get a fews years out of it with some pretty basic maintenance. I've been working on cars for a long time, but this is my first time working on a boat. All help appreciated!!! :eek:
 

MikDee

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Jun 6, 2007
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4,745
Re: Mercruiser 165 hp help needed!

That old "stovebolt" 6 165hp is one of the best marine engine, I had one yrs ago. You need a marine carb, not an auto one for safety issues (vapor recovery, or BOOM!). I don't know what you got on there now, but it came with a 2bbl carb orig. equip. It might even have had progressive opening linkage, like a 4bbl, (don't remember?) I can't help you find a matching carb, but somebody should be along to help soon.
 

rocket1968

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Feb 18, 2008
Messages
125
Re: Mercruiser 165 hp help needed!

I have the same engine, here is the carb. Make sure you have the flame arrestor. You will most likely need some gaskets for the install. I have had good luck with ebay with used parts. My rule of thumb, hook it up as soon as you get it, and let the seller know if it doesnt work. Discuss return policy before.


http://cgi.ebay.com/ebaymotors/Merc...015QQitemZ250257375583QQrdZ1QQsspagenameZWD1V
 

fusioncses

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Jun 15, 2008
Messages
3
Re: Mercruiser 165 hp help needed!

The carb that's on it now is a marine carb, but it's off of a 470 (3.0l). So you guys pretty much agree that I should buy the right carb?

Thank!

dp :D
 

freddyray21

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Jun 10, 2006
Messages
2,460
Re: Mercruiser 165 hp help needed!

I would. I think you will have nothing but issues if you don't .
 

Bondo

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Apr 17, 2002
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71,110
Re: Mercruiser 165 hp help needed!

but it's off of a 470 (3.0l).

Ayuh,.....

The 470 is the 3.7l,..... The 3.0l is the little sister to Your motor......

And I Agree, a used carb that's For that motor would make your life Much Easier....
 

fusioncses

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Jun 15, 2008
Messages
3
Re: Mercruiser 165 hp help needed!

Thanks all!

I went ahead and bought that used carb rocket gave me the link for. We'll see what happens. in the mean time I think I'll drain and clean the gas tank and try to get everything ready to go.


Thanks!
 
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