Lincoln E43Z-6505-A Valve - Exhaust

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Because of the complex nature of the job and the special tools and equipment needed, servicing of the valves, valve seats, and valve guides, commonly known as a valve job, is best left to a shop. The home mechanic can remove and disassemble the head, perform the initial cleaning and inspection, then reassemble and deliver the head to a dealer service department or an automotive machine shop for the actual valve servicing. The dealer service department or automotive machine shop will remove the valves and springs, recondition or replace the valves and valve seats, recondition the valve guides, check and replace the valve springs, spring retainers or rotators, and keepers as necessary, replace the valve seals with new ones, reassemble the valve components, and ensure the installed spring height is correct. The cylinder head gasket surface will also be resurfaced if it is warped. After the valve job has been performed by a shop, the head will be in like-new condition. When the head is returned, it is important to clean it again before installation on the engine to remove any metal particles and abrasive grit that may still be present from the valve service or head resurfacing operations, using compressed air if available to blow out all the oil holes and passages.

As seen, because of the nature of the job and the tools that needs to be used, the process of working on the valve, valve seats and the valve guides that is often referred to as valve job, should only be done by a professional. With the head removed and dismantled, a home mechanic is in a position to provide initial washing and inspection of the part before reassembling it for delivering to a dealer service department or an automotive machine shop for the actual work to be done on the head. Carrying out the inspection makes it possible to get an understanding of the state of head and valve train parts thus; knowing the work required and new parts when dealing with an automotive machine shops. For the specific services described below, responsibility will lie with the dealer service department or automotive machine shop: valve removal, valve or spring reconditioning or replacement, checking and replacing valve guides, valve spring, spring retainer, rotator or keepers as necessary, replacing valve seals, reassembling valves, and verifying the accuracy of the installed spring height, among others. Also, if the surface of the cylinder head gasket is uneven, this will also be machined. After the valve job is done the head will be smooth as new, after this another washing may be done to remove the remaining metal particles and abrasive grit that may be remaining following the head machining or the valve service. It is also blown through all oil holes and passages using compressed air.

Because of the complex nature of the job and the special tools and equipment needed, servicing of the valves, valve seats, and valve guides, commonly known as a valve job, is best left to a shop. The home mechanic can remove and disassemble the head, perform the initial cleaning and inspection, then reassemble and deliver the head to a dealer service department or an automotive machine shop for the actual valve servicing. The dealer service department or automotive machine shop will remove the valves and springs, recondition or replace the valves and valve seats, recondition the valve guides, check and replace the valve springs, spring retainers or rotators, and keepers as necessary, replace the valve seals with new ones, reassemble the valve components, and ensure the installed spring height is correct. The cylinder head gasket surface will also be resurfaced if it is warped. After the valve job has been performed by a shop, the head will be in like-new condition. When the head is returned, it is important to clean it again before installation on the engine to remove any metal particles and abrasive grit that may still be present from the valve service or head resurfacing operations, using compressed air if available to blow out all the oil holes and passages.

Doing the inspection will enable you to see what condition the head and valve train components are in and will ensure that you know what work and new parts are required when dealing with an automotive machine shop.

Set the Number 1 cylinder to TDC on the compression stroke by ensuring the intake and exhaust cam lobes of the Number 1 cylinder are pointing upwards (though not vertical) so that the valve clearances can be checked.

The inspection allows the mechanic to assess the condition of the head and valve train components and determine what work and new parts are needed when interacting with an automotive machine shop.

The inspection allows the mechanic to assess the condition of the head and valve train components and determine what work and new parts are needed when interacting with an automotive machine shop.

The inspection allows the mechanic to assess the condition of the head and valve train components and determine what work and new parts are needed when interacting with an automotive machine shop.

Because of the complex nature of the job and the special tools and equipment needed, servicing of the valves, the valve seats, and the valve guides, commonly known as a valve job, should be done by a professional.