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What a crank-scraper is and other technical info... Some comments on our products...
Alfa-Romeo, AMC, BMC, BMW, Buick, Buick-Rover, Cadillac, Chevrolet, Chrysler/Mopar, Datsun-Nissan, Fiat-Lancia, Ford, GM, Honda/Acura, IHC, Jaguar, Lotus, Mazda, Mercedes, MGA/MGB, Mitsubishi, Oldsmobile, Opel, Pontiac, Porsche, Renault, Studebaker, Suzuki-Geo, Toyota, Triumph, VW, Volvo

Please remember that we make these products to order.  Some of the most popular designs are kept in stock by our distributors.  There are hundreds of different engines listed with thousands of variants. 

We can  do custom stroker or knife-edge crank designs.  We can provide plastic templates for initial fitting and adjustment. Plastic templates cost $100 and are a separate charge from the scraper pattern chosen.

We have included some representative pictures of the scrapers we make.  If you would like to see a picture of a particular scraper please ask -- we would be more than happy to send one through.

When available (please enquire) our zero-clearance Teflon® scrapers run an additional $130.00 to the cost of the standard steel scraper unless noted.

Remember, your vehicle may have an engine made by a different manufacturer so check both product lines.  If you are still unsure, please contact us.



Remarks on Porsche 928 2/6 and 944 2 rod bearing failure

Kibort Effect

Kibort Effect understeer   http://www.youtube.com/b1JSv6WxigU

Kibort Effect neutral   http://www.youtube.com/NUh7KtFq09Y

Kibort Effect oversteer   http://www.youtube.com/-E5jNo0KfEk

928 -V8  16v and 32v, various strokes

$1438.95  Well-tested windage control system for the wet sump [for feedback click here]; currently the most complex aftermarket system in the world for any engine [click for some pictures of a steel GTS version].  Part of the complexity comes from the customer being able to follow the elaborate factory torque sequence on the numerous bedplate fasteners; part of the complexity comes from the severity of the windage problem itself.  Like our other Porsche products, the kit has been upgraded through many generations of design.  It was originally designed in the Summer of 2005 by Ishihara-Johnson upon request of Rennlist members.

The system is available for different stock and aftermarket strokes and crankshafts.  Please be sure to specify what engine you have; if you are using aftermarket rods it is strongly suggested that you use the Teflon bladed system.

It is also available in a modified form to be used with a dry sump system.  We will need to see pictures of the interior of the dry sump pan in order to know what should be done.

Teflon bladed system $1568.95

Please be aware that these systems should be ordered well in advance of fitment.

Copyright 2002-2018 © All rights are reserved on our product designs -- a great deal of hard work goes into each one.

Teflon® is a registered trade mark of E.I. du Pont de Nemours and Company. Only DuPont makes Teflon® resin sourced by Ishihara-Johnson Crank Scrapers from authorized DuPont licensees.

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Jean-Claude 1919-2003
A good friend.