Hot Rod Forum : Hotrodders Bulletin Board

Hot Rod Forum : Hotrodders Bulletin Board (http://www.hotrodders.com/forum/)
-   Engine (http://www.hotrodders.com/forum/engine/)
-   -   MSD Dizzy (http://www.hotrodders.com/forum/msd-dizzy-141957.html)

BBCMudbogger 07-14-2008 06:39 AM

MSD Dizzy
 
The literature with the MSD chevy pro-billet distributor shows that the block needs to be chamfered to run the dist with rubber o-rings. What is the point to that?

dawg 07-14-2008 06:50 AM

maintains oil pressure.
and directs oil to distributor shaft.
http://www.chevytalk.org/fusionbb/sh...hp?tid/192284/

malc 07-14-2008 07:00 AM

You donīt have to use them ifīn you donīt want too.
I have an MSD which I hoped to install today, but one thing is bothering me,
the flag on the distributor gear.
I have 15 - 40 Castrol in mine and donīt fancy oil changes for installing distributors.

http://i65.photobucket.com/albums/h2...r_Break_In.jpg

pepi 07-14-2008 07:18 AM

Just wondering what is the origin of this word dizzy for a distributor. I have never heard it before until reading it around this site and do not here it in the field. Seems to be some local HTBB term, it just sounds lame as a part id.

Can't you just here Austin Coil saying, "hay pass me the two dizzies and we can fire this thing" or is this one of those Hottroders terms, dumbing it down, like Hotrodders terms for dummies kind of thing.

Maybe a pole here..

Frisco 07-14-2008 07:34 AM

Quote:

Originally Posted by pepi
Just wondering what is the origin of this word dizzy for a distributor.

I don't really know the origin of the term "Dizzy" for distributor. I always attributed it to being either an Aussie and/or Brit terminology. I don't recall having heard it before going on Bulletin Boards on the internet.

BBCMudbogger 07-14-2008 07:49 AM

I actually picked it up here too....lol....too lazy to type distributor all of the time......I guess the question is why would you go out of your way to chamfer the distributor holes in the block just to run the o-rings and if the block was chamfered and you didnt use the o-rings what would happen and if there is any advantage to either?

Sixtyninemercury 07-14-2008 07:54 AM

Quote:

Originally Posted by malc
You donīt have to use them ifīn you donīt want too.
I have an MSD which I hoped to install today, but one thing is bothering me,
the flag on the distributor gear.
I have 15 - 40 Castrol in mine and donīt fancy oil changes for installing distributors.

http://i65.photobucket.com/albums/h2...r_Break_In.jpg

I wonder - what is the healthy wear pattern on a distributor's gear supposed to look like?

SSedan64 07-14-2008 09:30 AM

The wear pattern should resemble the pattern on a differential ring & pinion, centered on the distributor gear & not eating in to the gear. If it's not centered you may need to shim it. I just apply plenty of assembly lube and start it up.

XNTRCI-T 07-14-2008 09:34 AM

If your question is why is it necessary to chamfer the block, it's so you can get the distributor into the block with the o-rings in place. Without the chamfer, the o-rings get bound up and cut by the sharp edge of the block.

BBCMudbogger 07-14-2008 10:00 AM

That makes sense. Now I guess the question is why o-rings?

Sixtyninemercury 07-14-2008 11:00 AM

Quote:

Originally Posted by SSedan64
The wear pattern should resemble the pattern on a differential ring & pinion, centered on the distributor gear & not eating in to the gear. If it's not centered you may need to shim it. I just apply plenty of assembly lube and start it up.


I've not ever seen the ring & pinion wear pattern, either, sorry! My distributor's gear wear is centered on the gear - and as far as eating the gear I guess that you mean taking metal away from the gear? Mine isn't doing that.

ScoTFrenzel 07-14-2008 11:01 AM

dizzy, noss, donk, bubble, hopper, zip, etc.
a lot of new buzz words created by the younger generation to sound cool.

Didn't you see the modern classic, Fast and Furious? :rolleyes:
It will be (IS) their American Grafitti and Two Lane Blacktop.

Sort of like hot rod, rod, deuce, highboy, lead sled, etc. :thumbup:

SSedan64 07-14-2008 11:39 AM

Quote:

Originally Posted by Sixtyninemercury
I've not ever seen the ring & pinion wear pattern, either, sorry! My distributor's gear wear is centered on the gear - and as far as eating the gear I guess that you mean taking metal away from the gear? Mine isn't doing that.

This has some pictures of a ring&pinion install with wear pattern shown. On a distrbutor gear you really only set the depth unless you use a front thrust button or (OEMretainer plate)(roller cam) and the rear cam plug or a stop for backlash. Flat tappet lobes have a taper that keep pushing the cam rearward toward the gear.
http://www.richmondgear.com/ringandpinion.pdf

BBCMudbogger 07-15-2008 05:41 AM

Done hi-jacking my thread?...lol.....repost.......That makes sense. Now I guess the question is why o-rings?

malc 07-15-2008 08:30 AM

Quote:

Originally Posted by dawg
maintains oil pressure.
and directs oil to distributor shaft.
http://www.chevytalk.org/fusionbb/sh...hp?tid/192284/

You were answered post 2.


All times are GMT -6. The time now is 08:07 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.