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Location:
Gippsland Victoria
Registered:
January 2003
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 heart attack after 18rgu piston prices
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Thu, 30 January 2003 11:23
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i have recently purchased an 18rgu engine from the wreckers which had a blown head gasket. as a result the internals have a bit of rust (surface rust. but few parts a pitted) i need to get the cylinder rebored as a result but found oversized pistons cost $980  does anybody know of a slightly cheaper source for pistons? is it also possable to sell the origional pistons from it for close to the same rip off price as the new ones  (or at least to subsidise a portion of the cost)
also i was after sources for the other things for it such as chains, guides, bearings, gaskets, $3000, and 2 spring cap thingos. if anybody can help me source any of these bits it would be very helpful
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Location:
Gippsland Victoria
Registered:
January 2003
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Re: heart attack after 18rgu piston prices
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Fri, 31 January 2003 15:53
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anybody please. ill try to make more posts if i get a reply
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Location:
Canberra
Registered:
December 2002
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Re: heart attack after 18rgu piston prices
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Fri, 31 January 2003 23:14
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i will be acquiring one complete 18r-gu and one block with pistons and crank soon i will check the extra pistons and see if they are oversized. Also have you thought of using a block off a 18r because essentially they are the same block maybe you could find one that only needs a hone and not a rebore saving the old pistons. I dont know if it is possible to do this but can you use standard 18r rings in a 18r-g engine because the rings do fit in the lands on the slug.
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Location:
Gippsland Victoria
Registered:
January 2003
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Re: heart attack after 18rgu piston prices
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Sat, 01 February 2003 01:28
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i do have the origional 18r-c engine that came from the car. the pistons fit and are alright in 3 of the cylinders but the 4th is a little loose and still has a small amount of the ridge remaining even after the honing and stuff. would this be of any great concern?
also i think the oil pump on the 18r-g has a higher flow rate than the 18r-c and the pump has a third bolt hole which the r-c motors dont have. would it be any concern to use a lower flow rate, or bolt on the other oil pump with only 2 bolts?
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Location:
Canberra
Registered:
December 2002
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Re: heart attack after 18rgu piston prices
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Sat, 01 February 2003 02:21
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I have heard if it being done. The 18r uses a high pressure low volume pump where as the 18r-g uses a high volume low pressure pump from what little experience ive had the difference in the pumps is the rotor is longer and there is an expansion plate in between the housing and the pickup side of the pump on the 18r-g
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