How is your Mercruiser 470??

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bishop1976

Petty Officer 3rd Class
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Dec 13, 2007
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Just want to know how the Mecruiser 470 crowd is fairing this year. We had ours out last weekend after de-winterizing and she ran great. No problems at all.

Anyone else?
 
Haut Medoc

Haut Medoc

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Re: How is your Mercruiser 470??


I've been seeing alot of 470 posts, you (lucky for you) seem to be in the minority......:)​
 
J

JoChek219

Petty Officer 2nd Class
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Jul 17, 2006
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Re: How is your Mercruiser 470??

just uncovered mine, need to pull it out around front clean it up and get it ready to sell, so i can buy a 94 glastron ssv199 cuddy with a 4.3
 
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midsouthfire

Seaman
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Jul 15, 2007
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Re: How is your Mercruiser 470??

There you go, opening yourself up again to get slapped down to the surface!!
 
J

JoChek219

Petty Officer 2nd Class
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Jul 17, 2006
Messages
130
Re: How is your Mercruiser 470??

haha thanks bond-o, I know why I was able to get that boat soo cheap a couple years ago. I put a few new things into it and got her running good now , and its finally time to go and get that other boat :) eventually when I get the other I'm going to upgrade the 4.3 with the Vortec goodies
 
bhammer

bhammer

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Re: How is your Mercruiser 470??

I did the cam shaft / speedie fix to mine this season and she runs good. I also did the ignition II upgrade and adjusted my timing to about 4 degrees BTDC. There is a bulletin that changes it from 8 to 4. I did notice that the #4 cylinder was lower on compression than the year before but still safe. I'll run it for a bit more and check it to see if it continues to deterioate.

I say that she runs good but I managed to shatter the gimbal bearing into about 20 peices, so I'll be doing that this weekend. It's funny because when I looked at it all, the bearing moved very nice.
 
J

JoChek219

Petty Officer 2nd Class
Joined
Jul 17, 2006
Messages
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Re: How is your Mercruiser 470??

finally got my motor to start up after the winter lay- up, put in my seats , and now I just moved it to the front yard with a shiney new FOR SALE sign:)
 
bhammer

bhammer

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Joined
Mar 29, 2008
Messages
963
Re: How is your Mercruiser 470??

Mine did great. I summerized it, upgraded to electronic ignition and did the speedie fix this year. Had it out three times and it ran like a champ. Decided to get a new boat this year and traded in the old boat and engine. I don't think I'll miss it, other than the GPH factor and being one of "those 470 guys" in the forums. I tried to talk theguy out of letting me keep the engine so I could part it out. I had great success with my engine becasue I took care of it.
 
E

Erie Canal Boater

Cadet
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Mar 19, 2008
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Re: How is your Mercruiser 470??

I have had a 470 for three years and its an 1986 runs just fine every year! Got a lot of torque for a small engine we take it full of 8 poeple out to the local redneck yacht club do some tubing and skiing.. No problems hesitation some times but that just old age. Did pay much for the boat so with gas at $4.00 a gallon I still will be boating this summer as my little 470 doen't burn like the 350's
 
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brendanls

Recruit
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Apr 24, 2008
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Re: How is your Mercruiser 470??

bhammer said:
I did the cam shaft / speedie fix to mine this season and she runs good. I also did the ignition II upgrade and adjusted my timing to about 4 degrees BTDC. There is a bulletin that changes it from 8 to 4. I did notice that the #4 cylinder was lower on compression than the year before but still safe. I'll run it for a bit more and check it to see if it continues to deterioate.

I say that she runs good but I managed to shatter the gimbal bearing into about 20 peices, so I'll be doing that this weekend. It's funny because when I looked at it all, the bearing moved very nice.
Click to expand...

What is the cam shaft / speedie fix?
 
bhammer

bhammer

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Messages
963
Re: How is your Mercruiser 470??

brendanls said:
What is the cam shaft / speedie fix?
Click to expand...

Welcome to iBoats. Do you have a 470?

Below is a link for the specific details on the fix. The internal water pump that circulates the coolant water is driven off the cam shaft. Eventually, the seals wear a groove into the cam shaft and coolant begins to leak out of the weep hole at the bottom of the timing cover. It is very important to make sure at least once a season that the weep hole is not blocked as well. If it is, antifreeze coolant will be forced into the engine oil.You can use a paper clip to stick up in there to clear it out.

Here is the link: http://www.sterndriveshop.com/470information/470coolantleakrepair.html
 
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brendanls

Recruit
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Apr 24, 2008
Messages
2
Re: How is your Mercruiser 470??

Thanks bhammer

Yes I do have a 470. First boat. What should I expect to pay for this fix?
 
bhammer

bhammer

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Joined
Mar 29, 2008
Messages
963
Re: How is your Mercruiser 470??

I spent less than $100 and about 4 hours. Head on over to breezeworks.net for a good site with all kinds of info on the fix. It is a pretty straight forward deal but read the link I posted before about how to do it. Here are the tools:

1. Harmonic balancer puller - Assorted bolts / washers to fit the harmonic balancer and large bolt to run the balancer back on.
2. Micrometer to measure the camshaft to determine to correct speedie sleeves.
3. Sockets, screwdriver and wrenches
4. Hammer to put the sleeve on.

Parts:

1. Timing chain cover gasket, water pump gasket. I think there are three: Timing chain gasket, water pump cover gasket and hose elbow. These are stacked on one another right on front of the block
2. 2 ea cam shaft seals
3. 2 ea Speedie sleeves
4. Locktite
5. High Temp gasket sealer

The biggest issues are making sure you don't tear the oil pan gasket when removing the timing chain cover. I had lots of room in the bilge so I loosened all the bolts on the oil pan and it gave enough clearance.

The other, is making sure you get the sleeves on the camshaft at the right spots as they are not that wide. I micked the cover and gasket against the seals middle and then micked the camshaft to make sure I got them real center.

If you have mechanical abilities, it isn't hard at all. If you run into issues or want more of an walk through, PM me and I can call you for a full blown explanation.
 
J

JoChek219

Petty Officer 2nd Class
Joined
Jul 17, 2006
Messages
130
Re: How is your Mercruiser 470??

i just finally sold mine this past sunday..had it for 3yrs and going to look at a 94 glastron cuddy cabin with a 4.3 v6 that I've had my eye on
 
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