Topica Loopframe_Guzzi Archive


Subject: Re: 850 Engine Rebuild

Author: David J. Otis

Date: Jun 12, 2001, 7:24 AM

Post ID: 1707084639



----- Original Message -----
From: stephen brenton <sbre-@williamstech.com>
To: <Loopfram-@topica.com>
Sent: Tuesday, June 12, 2001 10:05 AM
Subject: RE: 850 Engine Rebuild


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David-
Thanks for the answers.

Next set of questions:
(1) As stated before, I'd like to use the main bearings and crankshaft
from the chain engine in the gear drive case. Is there a need to ensure
alignment of those bearings when they are installed in the case before I
install the crankshaft?
they will be fine



 (2) Should line boring be considered?
no not necesary

 (3) Neither one of the 2 oil pumps are acceptable. Where can I find a
replacement?
used ones from many places, ebay, Mark, MGClassics, Mike Scaggs, etc.
I have a NOS one if your interested.


 (4) Is the later design oil pump (with helical gears) a preferred
design?
If I understand your intentions, they are to use the origional case that has
the matching numbers, and that is a gear drive case, you must use gear drive
with that which will dictate the use of a gear drive oil pump, you cannot
use the Eldo oil pump as it is pinned to the case with 2 locator pins, the
gear drive is located in the case by a longer shaft on one of the gears that
goes in a matyching hole in the case.


 
One more note, I see a difference in the ribbing on the exterior of the
2 engine cases.

go here to see the info and pics on the different engine cases
http://www.loopframe.com/what%27s_the_diff.htm



Pictures will be sent to DrDaveLoopframe site soon.
 
thanks
stephen

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