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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

Tappet cover gasket

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How long should it take to change a tappet cover gasket? Cummins says that is where my oil leak is at.

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  • Owner

Oil has no factor in the one I did it had over 620K miles and its a 1992 Dodge Cummins 12V it was pure old age and the gasket srunk and split open like KOYOTE mention... Sorry to say nothing last for ever...:rolleyes:

both had extremly hard and split gaskets long term heat exposure i guess, dont think oil type is a factor at all but i do recommend rotella with lucas additive ive rebuilt these motors with major milage and this oil diet and still seen factory crosshatch in the cyl. bores so im sold

  • Owner

Heck... My 1983 Goldwing GL1100 had crosshatch still at 85K miles when I blew the head gasket and that just standard oil engine oil 10w-30 or 10-40w and honda filters... post-2-138698167253_thumb.jpg All I'm pointing out is that today's engine oil is head and shoulders above yester-year... Just something to consider because there is at least 2 members here with over 500K miles on just standard petroluem oil...

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Welcome To Mopar1973Man.Com LLC

We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.