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What a crank-scraper is and other technical info... Some comments on our products...

We will try to keep this list updated but if you do not see your engine listed here please ask!  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.



Scraper for the QR25DE: $79.95 in steel and $209.95 for a Teflon® bladed version.  We have versions for the earlier partially counterweighted crank and the new fully counterweighted crank.  Will work with or without balance shafts installed.  It is totally compatible with the JWT balance shaft removal kit as well.

Teflon® version with baffle:


Fully counterweighted crank; steel and Teflon® versions:

Teflon® frame installed (baffle with trap door mentioned below is visible):

Pan baffle with swinging trap door for the QR25DE.  The key weak spot in the alloy upper sump is the ability of the oil to move out of the sump well and into the shallow end of the pan under sustained hard turns to the right.  This baffle raises the G level that can be sustained in such turns and brings it more into line with the performance of the pan in other maneuvers.  This baffle works with or without the balance shafts and will work with the JWT balance shafts removal kit if about 10 mm is removed from the lower baffle plate edge nearest to it -- this is a very simple modification that will allow the trap door to swing freely.  $69.95    

NOTE: It is very important to check to see if your upper aluminum pan matches the one in the pictures.  The door it fit specifically to the interior of this pan.  Baffles for other sumps are probably possible but you would need to send us the sump (pics first, please).

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
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