This is a modified aftermarket head gasket. We have become increasingly concerned that the OEM cylinder head gasket (07V103147) is no longer fit for purpose, therefore we been involved in the procurement of an alternative head gasket, UE31004P. We advise fitting this gasket to all pre-Turbo & Fuel injected engines made before 1985.
Our head gasket bears more similarity to the pre-Turbo gasket UE31004, hence the new part number of UE31004P. It includes the use of copper in the fire ring and the coolant and lubrication channels as well as a modern composite material which confers chemical and thermal resistance as well as strength.
The UE31004P gaskets are slightly thicker than the OEM cylinder head gaskets (07V103147) but compress more easily. This has several potential advantages including:
A) We have, in the past, identified that over-machining of cylinder heads is a potential cause of tappet noise and we offer a shorter push rod kit (UT14120-0.050P) to overcome this issue.
Our gasket UE31004P can similarly assist when cylinder heads have been machined to or beyond their limits.
B) The use of copper allows the gasket to “crush” more easily than the 07V103147, giving a better seal between crankcase and cylinder head, especially when the surfaces are not perfectly flat.
C) Previous failures caused by insufficient or inadequate beading on 07V103147 have been overcome by not using this type of beading on UE31004P.
Please see the document below for more detailed infomation:
PRODUCT INFORMATION SHEET