Engine Start Up

  • DavidK
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30 Nov 2014 17:21 #28591 by DavidK
DavidK created the topic: Engine Start Up
Here's a great short video for Sunday Morning viewing.
http://theoldmotor.com/?p=133946

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  • mikespeed35
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30 Nov 2014 18:23 #28593 by mikespeed35
mikespeed35 replied the topic:
Is that a overhead cam engine? Looks like it might be.
Cordially Mike

Mike Huffman

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30 Nov 2014 20:27 #28595 by landmark
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mikespeed35 wrote: Is that a overhead cam engine? Looks like it might be.
Cordially Mike



Hello Mike,

according to the following link, that has an overhead camshaft and four valves per cylinder.

The displacement per cyl. is about 7.1 ltr (433 cui) <!-- s:shock: --><img src="{SMILIES_PATH}/icon_eek.gif" alt=":shock:" title="Shocked" /><!-- s:shock: -->

https://grrc.goodwood.com/festival-of-s ... at-s76-fos


Cheers

Matt

Was man besonders gerne tut,
ist selten ganz besonders gut

Wilhelm Busch

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30 Nov 2014 20:35 #28596 by landmark
landmark replied the topic:
Here is another mad machine

BRUTUS powered by a 46.9 l V-12 BMW Warbird engine

https://www.youtube.com/watch?v=wJn7LHE83cc

https://www.youtube.com/watch?v=OrZNGml0csQ

Was man besonders gerne tut,
ist selten ganz besonders gut

Wilhelm Busch

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  • mikespeed35
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01 Dec 2014 03:31 #28600 by mikespeed35
mikespeed35 replied the topic:
I would like to see the valve train, I'm trying to imagine how they would run four valves per cyl. on one cam. The early Bug's ran three valves per cyl. but with two cams.
Cordially Mike

Mike Huffman

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01 Dec 2014 09:23 #28601 by landmark
landmark replied the topic:

mikespeed35 wrote: I would like to see the valve train, I'm trying to imagine how they would run four valves per cyl. on one cam. The early Bug's ran three valves per cyl. but with two cams.
Cordially Mike



Hello Mike,

I don't know how it works in that engine. It is possilble that it works with "spreaded" rocker arms/lever -> one arm/lever moves both valve on the intake (or outlet) side. So (for a four cyl. engine) there is only one camshaft (with 8 tappets on it) needed.

An example (in a different type of engine) for spreaded rocker arms are the early Harley Davidson 8 Valve Racer OHV (not OHC) engines. Two valves are driven by one "spreaded" rocker lever -> one tappet (and pushrod)

Here you will find a picture:

http://commons.wikimedia.org/wiki/File: ... emphis.jpg


Cheers

Matt

Was man besonders gerne tut,
ist selten ganz besonders gut

Wilhelm Busch

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