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Mercruiser. Yup, beware. Manufacturing issues.

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Mercruiser. Yup, beware. Manufacturing issues.

Old 06-01-2020, 02:38 PM
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Default Mercruiser. Yup, beware. Manufacturing issues.

Can't presently cast a set of SBC Mercruiser wet joint manifolds to save their life and won't back them up.
They recognize the issue, have promised several new re-engineer and casting dates, now say sometime soon again, like the other times. Lol.....past a year aftyer bringing this to there attention. These casting have probably been around for 2 yrs or more.

So, if you are a installer, dealer, parts reseller, or private person that has or is going to buy these, think twice. I have pics of parts and notes of correspondences.

Too bad, as Mercruiser boasts being a world class manufacturer and many of use have been buying their products for a long time.

Guess they joined the modern ranks of poor manufacturing and not really giving a schit when it happens.

Bummer.

Buyer beware.

Last edited by SB; 06-01-2020 at 07:47 PM.
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Old 06-01-2020, 04:32 PM
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That's a bummer and thanks for posting
Happen to know the part number ?
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Old 06-01-2020, 08:09 PM
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860246Q11 exhaust manifolds. These are the E-coated ones, but the Ceramic coated ones are effected too as they are the same castings. Verified by Merc. The coatings are done after .





Last edited by SB; 06-01-2020 at 08:19 PM.
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Old 06-01-2020, 09:52 PM
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no hablo englase
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Old 06-01-2020, 10:28 PM
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Originally Posted by sutphen 30 View Post
no hablo englase
No kung pow chicken either.
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Old 06-02-2020, 02:23 PM
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I switched over to d Mercruiser Dry Joint style setup . Mine are made by Barr. They have 2 different riser angles available. Going strong 6 plus years in salt.

Chris
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Old 06-02-2020, 02:44 PM
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Suggest posting the pics here so if anyone is looking in the future, they can see the issues
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Old 06-02-2020, 03:41 PM
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Zoom in on pic. Tap, then spread with fingers if phone. Click few times if on pc.Valve cover side not only mismatch but leaves a extremely thin ledge for gasket to try to seal on. Gasket is 100% correct in shape/size.

This is not an oddbal set, Merc says they are all this way until they sell out the rest and change the castings.



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Old 06-03-2020, 04:43 PM
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Gasket in pic is positioned perfect too. I used studs to center it.
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Old 06-04-2020, 08:38 AM
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Does the riser mate up to that? how is the riser to manifold fit? is the problem a mis made gasket? of so can you have a correct gasket made?
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