Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > Porsche 356 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Nov 2010
Location: Sweden, Europe
Posts: 76
Position of con rods on crank?

Hi guys,

Is there a given order on how to position con rods on crank? Walter Odental on Youtube claims part numbers should always face towards the crank pulley, but after dismateling two cases now, positioning of the rods seem to be pretty erratic, see attached pic. No pic of the other crank as it still sits in a case, but can see the rods and only one rod faces the pulley with the part number.

What is the correct way?

Dennis
Old 01-09-2018, 06:39 AM
  Pelican Parts Technical Article Directory    Reply With Quote #1 (permalink)
Registered User
 
donco's Avatar
 
Join Date: Feb 2011
Location: Albuquerque, NM
Posts: 10
There is a reference in the archives discussing the position of the notch for the bearing shell tabs of the rod cap with respect to the direction of rotation of the crank. Aside from that, generically, if the big end has 2 different size chamfers, then the larger chamfer faces the crank and the smaller chamfer faces the adjacent rod. None of my 356 nor 912 repair manuals (Elfrink, Clymer) address the issue. There are also other discussions by Pellow and the Maestro that discuss rod orientation with respect to the bearing shell tab.

I rebuilt a 912 and also 2 different 58 356 Normal engines in a past life and do not recall that I payed much attention to orientation other than the numbers all facing the same direction. All of those engines ran smoothly and reliably for the duration of my ownership.
__________________
58 356A 1600 Super, sunroof
former 66 912 (may it rust in pieces)
Intermeccanica Speedster w/1720 912, never shoulda sold it!
69 Alfa Spider
Old 01-11-2018, 09:37 AM
  Pelican Parts Technical Article Directory    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Mar 2009
Location: Edmonton, AB
Posts: 711
I put the numbers facing up but it may not matter
Porsche356registry.org • View topic - Connecting rods postion on crank
__________________
__________________________
'58 356A coupe, just a driver
'00 Boxster S
previous Pcars
'95 993 Polar Silver/Chestnut;'08 Cayman S;'70 911E
Old 01-11-2018, 04:58 PM
  Pelican Parts Technical Article Directory    Reply With Quote #3 (permalink)
Registered User
 
Join Date: Nov 2010
Location: Sweden, Europe
Posts: 76
Thanks guys for your inputs.

Dennis
Old 01-12-2018, 10:23 AM
  Pelican Parts Technical Article Directory    Reply With Quote #4 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 05:22 AM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2017 Pelican Parts LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.