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PointedThree :  Vans, Trucks, SUVs and Other Forums : G-Class : 617 Cylinder Liners - to use sealant

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617 Cylinder Liners - to use sealant
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Posted 2/18/2007 2:25 PM
petermerle
Expert




Date registered: Apr 2006
Location: Cape Town ( deep south )
Vehicle(s): W460 *1, W123 *2, W124
Posts: 1315
1000
617 Cylinder Liners - to use sealant

Busy rebuilding my 617.91 engine and I have noticed a small gap between block and sleeve on a few cylinders. The engine is still on original liners and has been bored out to 91.5 mm ( +0.6 mm ) I have been thinking of using a copper based cylinder head gasket sealant to try and prevent anything getting between sleeve and block. ( BTW with my previous block with the cracked cyl head water got between block and sleeve causing corrosion of block )
See pic
Peter



(Cylinder.jpg)



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Attachments Cylinder.jpg (59KB - 3 downloads)
#64259
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Author
Posted 2/19/2007 6:06 PM
hipine



Date registered: Jul 2006
Location: US, CO, Bailey
Vehicle(s): 460 1980 280GE w. 617A
5000
RE: 617 Cylinder Liners - to use sealant

The gasket comes pre-treated and as long as the gasket, head, and block are in good shape and torqued properly, the seam between the liner and block shouldn't be exposed to any water anyway.  You're trying to seal a heck of a lot of compression and combustion pressure there.  I wouldn't fool around with it outside of what the manufacturer recommends.

-Dave G.

#64378 - in reply to #64259
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Author
Posted 2/20/2007 1:07 AM
petermerle
Expert




Date registered: Apr 2006
Location: Cape Town ( deep south )
Vehicle(s): W460 *1, W123 *2, W124
Posts: 1315
1000
RE: 617 Cylinder Liners - to use sealant

I'm not sure if the gasket we get is the same as in Europe/US. The handbook refers to a gasket that must avoid sunlight etc , but th eelring one we get here is packaged in clear film with no special surface treatment. What did your gasket look like DAve?
PEter
#64416 - in reply to #64378
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