engine trouble 1965 110 hp chevy mercruiser

[65holiday]

have a 153 cid 4cyl chevy mercruiser 1965. bad valve seat ( or gone) in #4 exhaust. pulled water into #4 from manifold crack.working wtih machine shop and welder on repairs but need gaskets. have tried michmotorz for some and masonmarine but some are unavailable for manifold(carb) and some of the plate gaskets for the aluminum 1/4 " bolt variety manifold Engine s/n is 1825234 (1963-1966) I believe. any suggestions? I have some of the merc part numbers but not all. help! greg

 

[P 0 P E Y E]

Re: engine trouble 1965 110 hp chevy mercruiser

Have you tried your local Mercrusier dealer?

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

thanks popeye, yes I have, they only have access to original parts...many are NLA. I have some of the orig part #'s and think I will try Delta Marine in Columbus Ohio again. Mick was very helpfull and sent accurate pictures of the manifold in question. Hope to hear from machine shop 7/15/09 re: the valve problem. Have a welder lined up to tig manifold based on valve situation. The manifold has 5 plates plus exhaust elbow. anyway thanks for the reply! Greg

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

put to top....head is ok ...rebuilding it and have peeled manifold plate gasket (lower) off of plate and think I can make it. need aftermarket gasts though if possible...will try more calls... where can i get sheets of gasket material? at a boat dealer?

 

[fishrdan]

Re: engine trouble 1965 110 hp chevy mercruiser

A good auto parts store like Napa or CarQuest will have gasket material. Try to find flat sheets as the rolled stuff is a pain since it wants to curl up.

A ball peen hammer is your friend for making gaskets, position gasket material over part and tap around the machined edges to cut through the gasket material.

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

thanks fishrdan, i found soaking plate and gasket in water overnight allowed pretty good intact removal ( using razor blade scraper)for transfer to new material, have about 5 more to do on aluminum 5/16" bolt manifold... also found out I may have been able to switch heads and use updated manifold, head rework already in progress though.

 

[novicetech]

Re: engine trouble 1965 110 hp chevy mercruiser

To the top

 

[Bondo]

Re: engine trouble 1965 110 hp chevy mercruiser

To the top

Ayuh,... What's with the Bump,..??. I don't see where you have a dog in this race,....

 

[novicetech]

Re: engine trouble 1965 110 hp chevy mercruiser

Bondo, just trying to help out a friend, I work with this guy and I dont know much about boats or motors from this era.

 

[Bondo]

Re: engine trouble 1965 110 hp chevy mercruiser

Bondo, just trying to help out a friend, I work with this guy and I dont know much about boats or motors from this era.

Gotcha,... But I don't see the Question,... It sounds like the OP has it under control....

Btw,... Updating it would have been the Easier route to go....

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

back to top... whats the best way to clean the aluminum manifold parts?

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

back to top. wow! marinepartsplus.com is awesome, found all but two of the nla gaskets!!!!! keep trudging ! thanks guys

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

back top marine parts plus awesome .puttin the manifold in the dishwasher!yow!!!!!

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

to the top, can I update to a newer manifold on that head The head was reworked and looks fabulous.Heck, I'll call michgan motors tommorow.

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

exhaust elbow shot... any ideas on junkyard parts or retro-fitting to a newer manifold? who would I contact

 

[woosterken]

Re: engine trouble 1965 110 hp chevy mercruiser

nice way to pad your posts bondo you don't either

65 holiday here is a salvage yard for old boats laniermarine.net

woosterken

 

[Bondo]

Re: engine trouble 1965 110 hp chevy mercruiser

can I update to a newer manifold on that head The head was reworked and looks fabulous.or retro-fitting to a newer manifold?

Ayuh,... Not that there won't be a few obstacles to overcome,...
You should be able to swap the Complete intake/ exhaust Manifolds,+ riser from a 120/ 140 up to around the Late 70s...

 

[fishrdan]

Re: engine trouble 1965 110 hp chevy mercruiser

Have any pics of your head, manifold and exhaust elbow? From what I've seen there are 3 different head configurations used on the 4cyl GM marine engines, 1 with 2 combined exhaust ports instead of 4 separate exhaust ports, 1 with large intake and exhaust ports, latest version had small intake ports for fast intake velocity.

Your obstacles will be matching up the head/manifold port configurations and anchor points for the linkages, also check the carb bolt pattern as the newer Mercarb has a wider bolt pattern than the old Rochester 2bbl carb.

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

top, thanks fishrdan! unbelievably I was able to find a salvage manifold complete within 10 mi of the house. It is the style with combined exhaust ports. the guy has 2 and i'm grabbin the other one too.Novicetech (I work with him) helped with head installation etc and I'm putting the rockers on today,planned on following clymer manual for this.thanks guys for all your help!

 

[65holiday]

Re: engine trouble 1965 110 hp chevy mercruiser

guys, valve adjusting question. when adjusting the valves on the 110hp chevy 4 cylinder the forum here says to remove all end play at the valve and push rod and then go 3/4 turn tighter. the clymer manual says remove end play at the push rod but then that zero end play means you cant rotate push rod! then go 3/4 turn. I have zero end play (lash) and went 3/4 turn but i could rotate push rod prior to the 3/4 turn. want to make sure i get it right which is correct? thanks