Volvo Penta 3.0 litre exhaust leak after 10 hours

[imported_erick]

Anyone know what could cause an exhaust leak in a new engine with a new exhaust manifold and gasket in an engine with around 10 hours.

The engine also makes a chatter at around 3000 - 3500 rpms that usually goes away by reducing the throttle.

Thanks,
Erick

 

[vipzach]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

Where is the exhaust leak coming from, around the gasket? Maybe it is a faulty gasket. Where is the chatter coming from, the valves. These guys need more specific information to help you out or everybody is just guessing.

 

[DHPMARINE]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

Erick,if this is a new boat,take it to the seller,and the same if it is a new dealer installed engine.Any new 3L engine I've seen should NOT have an exhaust leak,Certainly not at the manifold.

DHP

 

[Don S]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

I just put 2 and 2 together (this post and your other post ) and am beginning to wonder if this clatter is [colour=null]Pinging [/colour]and not just what you are calling a clatter.
It's obvioulsy a new engine in a 98 boat, but you need to make sure the timing is adjusted to specs and the carb is adjusted properly. May very well be the root of all your problems.
If I were you, I would be taking in back to the dealer that put the engine in ASAP. You don't need to start changing things and screw up any warrenty.

 

[imported_erick]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

Yes it is a new engine in an older boat. The engine was put in by my father and I. It was a new engine we got from michigan motors. The Carburator was also on the list of replaceables because one side (2bbl) was not adjusting (screw was spinning but nothing happening with the engine). I will probably be putting a new Holley on this coming week. I will also make sure the timing is right. I might then take it to someone who can listen to the noise and give me some further direction.

Thanks,
Erick

 

[imported_erick]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

It was not an exhaust leak after all. It was a head gasket. I guess when I blew my power steering belt (which also controls my raw water pump), I warped the head slightly. It has been milled and gaskets have been replaced, now I am putting a new carb on to hopefully eleviate the pinging.

Thanks,
Erick

 

[Don S]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

That "Pinging" is probably what took out the old head gasket, and replacing the carb isn't going to cure it. You need to set the timing to specs.
How EXACTLY are you setting the timing?
Assuming (since you give No information on your engine) you have the EST ignition system you MUST use the shunt to put the distributor into base timing mode before setting the timing. You also MUST verify the module is actually coming out of base timing and allowing the timing advance to work.

 

[imported_erick]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

I will be having an auto mechanic look at it on thursday. The way the timing was set before was by ear....I know this is not ideal but it was fast and we got into the water quickly. I realize now that this was a bad decision and we will not run the boat until everything is set better. With the help of a chiltons manual and a mechanic, do you think we can get this problem fixed?

Thanks,
Erick

 

[Don S]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

With the help of a chiltons manual and a mechanic, do you think we can get this problem fixed?

No, Chiltons is not a marine manual, it's automotive, The 3.0 is not an automotive engine.
Why don't you take it to a Volvo Penta marine dealer

 

[imported_erick]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

it is actually the "Clymer Volvo Stern Drive Shop Manual, 1968-1993 (Paperback) " which is specifically for the marine engine. I would rather not bring it to a volvo penta dealer as I am a little low on cash.

Is it that tricky where you would say it needs a volvo tech to do the timing?

Thanks,
Erick

 

[tommays]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

If you have the correct method (not allways easy with and aftermarket manual) and the abilty to follow and understand what and why you are doing something its not that hard


Tommays

 

[imported_erick]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

Tommays, are you a mechanic? I notice you are also on LI. I am in Smithtown.

Erick

 

[tommays]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

i went to a 2 year BOCES outboard school in 1974 and then got tired of no work in the winter SO i started fixing land machinery in 1975 as i like a steady liveing


I buy enough books and took the sterndrive class over at the BOCES to keep my own boats running and try to help other people here

There are plenty of Volvo dealers on LI

Tommays

 

[Don S]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

Erick, you really need to post what you have if you want some help. The Clymers manuals have so much wrong and omitted information in them that you never know if something is right or wrong.
Need some information as to what year engine you have, what distributor you have etc. Do you have the EST distributor?
You seem to think having a marine mechanic set your timing is too expensive, just wondering how expensive you think it's going to be when you blow a hole through a piston and need a rebuild because the timing was off.
And trust me, Merc and Volvo both have had a lot of trouble with the 3.0L engines.

 

[imported_erick]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

It is a 1998 volvo Penta 3.0L. Although the engine is a 2005 that was put in this past August. I am not sure what type of distributor I have, if you could tell me what to look for I would appreciate it. It has a Holley 2barrell carb on it and the outdrive is an SX Cobra. The engine is in a Larson Flyer 176 Bowrider and has a 14.5X19 prop on it. I have replaced all the belts, most of the hoses, the power steering pump(which I think my dad got at an auto parts store), raw water pump, gimble bearing, and other misc parts.

Thanks,
Erick

 

[Don S]

Re: Volvo Penta 3.0 litre exhaust leak after 10 hours

Was this a complete engine you installed or was it just a long block and you moved everything from the old engine to the new long block.
If you would, could you get me the full model number or even the serial number would do Then I can look up the exact specs for your engine.
And that Clymers manual has absolutly NOTHING to do with your engine. Volvo didn't even use the 3.0L engine in 93 or earlier.