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Jeep Wrangler YJ
YJ General Discussion
A Repetitive Manifold Problem
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<blockquote data-quote="Flyer58" data-source="post: 436948" data-attributes="member: 18629"><p>I'm wondering if the 4.0 and 2.4 gaskets are different. My '92 2.4 only had gasket material on the intake ports and the exhaust was metal to metal between the exhaust header and block. If I went with the replacement gasket which seals both int. and exh. ports the flanges on the intake will be slightly recessed so the bolts and washers may not get even pressure applied and the intake may leak. The flange on the intake is about 1 or 2 mm thinner than the exhaust to make up for the difference in the gasket material (OEM design) This leak has been reported to happen when thinner gaskets are used. So far mine is not leaking. </p><p></p><p>When I questioned it I was told to use a heavy duty/thicker gasket and it will be ok or just cut out the exhaust part so the header flange will set lower. </p><p></p><p>Was the original 4.0 this way also?</p></blockquote><p></p>
[QUOTE="Flyer58, post: 436948, member: 18629"] I'm wondering if the 4.0 and 2.4 gaskets are different. My '92 2.4 only had gasket material on the intake ports and the exhaust was metal to metal between the exhaust header and block. If I went with the replacement gasket which seals both int. and exh. ports the flanges on the intake will be slightly recessed so the bolts and washers may not get even pressure applied and the intake may leak. The flange on the intake is about 1 or 2 mm thinner than the exhaust to make up for the difference in the gasket material (OEM design) This leak has been reported to happen when thinner gaskets are used. So far mine is not leaking. When I questioned it I was told to use a heavy duty/thicker gasket and it will be ok or just cut out the exhaust part so the header flange will set lower. Was the original 4.0 this way also? [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
A Repetitive Manifold Problem
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