115hp in-line 6 might have bitten the dust

ttriebler

Cadet
Joined
Oct 7, 2003
Messages
26
Ihave a 1976 115hp in-line 6 and have done quite a bit of work on it over the last few months..(impeller, carbs, plugs, rotor cap etc). Took it out today and it took about half hour to get started....you know, practically flood the thing, hold choke in and hope.<br /><br />Well it ran well for a while, then a noise from inside the cowling and the engine died. The intake manifold blew a piece out of it around cyl 3 (as big as your thumb). Engine will still run in neutral (amazing) but not once in gear (of course).<br /><br />So now.........do we throw it away and get a late model or is it worth buying a manifold and repairing the engine?<br /><br />Anyone out there in Sydney selling a late model Merc?
 
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DJ

Guest
Re: 115hp in-line 6 might have bitten the dust

I don't know where the hole is. <br /><br />Have you considered patching it with something like JB Weld?<br /><br />That must have been one huge backfire to do that. Sounds like it's running a bit rich. Or the crank seals are not holding.
 

Clams Canino

Commander
Joined
Jan 10, 2004
Messages
2,179
Re: 115hp in-line 6 might have bitten the dust

You *need* to take it apart. <br /><br />Something catastrophic happened in #3 and a piece of shrapnel punched that hole. <br /><br />That cover *can* be welded once it's off. It's matched to the crankcase and ill advised to replace it. Save the broken peices.<br /><br />But you need to find out what happened in #3 to make that hole, it may even have thrown a rod. I've fixed a couple that were that bad. It's not without hope. <br /><br />-W
 

Clams Canino

Commander
Joined
Jan 10, 2004
Messages
2,179
Re: 115hp in-line 6 might have bitten the dust

Also,<br /><br />If you have Outlook Express, try this link. Just cut and paste it ino your web browser and Outlook express outta fire off and go there.<br /><br />news://news.kraits.org/bigweek.mercury-inlines<br /><br />It's an NNTP Inline Six users group, you're gonna need it. LOL<br /><br />-W
 
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