Talk:Flathead engine

message: I added:
:"though they were the basis of many early racing engines, including famous names such as Ardun (Zora Duntov) and Frontenac (Louis Chevrolet)." 
I can't cite a source offhand, but it's well known. Google "Ardun" & "hemi" & you'll get several websites with details that agree with what I've read. Or goto the Hot Rod, Street Rodder, or like sites...  Trekphiler 13:47, 4 January 2007 (UTC)
thread_title: Has it got a [[hemi]]?

message: Picture worth a Kiloword...  —Preceding unsigned comment added by 199.175.128.1 (talk) 20:23, 3 April 2008 (UTC)
thread_title:  Howzabout a diagram? 

message: Starting side valve engines in cold weather was always a problem - I've pushed one or two! This could be listed as a disadvantage of them. Soarhead77 (talk) 18:41, 16 June 2008 (UTC)
thread_title:  Cold starting 

message: some idiot is insisting on citations for utterly obvious information, such as a flat heat being simpler than a head with valves!!! this leaves the article looking like an eight-year-old with OCD has peppered it with the word citation. they also revert changes without checking whether changes were accompanied with an explanation  —Preceding unsigned comment added by 110.175.57.184 (talk) 06:07, 20 October 2010 (UTC)
replies: text: Yeah, without checking on these particular incidents I'd have to say this is a chronic problem. It seems to me that people often stick knee-jerk tags on articles and files with neither thought nor research. And even when there's a genuine problem, often it takes no more time to fix it than to add the tag, so why not fix it instead? I have no answer to this, neither do I understand why they do it nor can I think of any way to stop them. Hang in there. Andrewa (talk) 14:26, 16 May 2012 (UTC)
thread_title:  Citations =

message: In the 'Popular Culture' section I removed the statement that indicates a flathead has more power strokes per revolution. Whoever said that was confusing the L head engine with a two stroke engine, which does have a power stroke every revolution, whereas four-stroke engines (OHV, L-head, or any other configuration) have a power stroke every two revolutions (per cylinder).  —Preceding unsigned comment added by 67.250.57.16 (talk) 20:46, 27 February 2011 (UTC)
thread_title:  Flat head is still a four-stroke 

message: See Wikipedia:Articles for deletion/Cam-in-block  Andy Dingley (talk) 10:18, 14 April 2012 (UTC)
thread_title:  [[Cam-in-block]] at AfD 

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thread_title:  External links modified 

message: In the light of recent comments, I propose to declutter the article and create a new page on "Flathead motorcycles" that will live or die on its own merits. On the Flathead page, it might be appropriate to have a paragraph on Ricardo and his work on squish & turbulence. There were other researchers too: see "Speed & how to obtain it" - once essential reading for racers riding matchless G50s, AJS 7Rs and Manx Nortons. Arrivisto (talk) 08:00, 1 May 2018 (UTC)
replies: text: Given HD did use flatties for a substantial period, deleting the Harleys entire seems like a bad idea. Pruning the detail would have been better advised, wouldn't it? (FYI, not a HD fanboi.)  TREKphiler any time you're ready, Uhura 08:36, 1 May 2018 (UTC)
replies: text: I think when most people talk about flathead they would think Harley. 72bikers (talk) 13:41, 1 May 2018 (UTC)
replies: text: No doubt the "Flathead motorcycles"  page will disabuse them of such tunnel vision! Arrivisto (talk) 23:48, 2 May 2018 (UTC)
thread_title:  Declutter 

message: This sentence makes no sense. 
 "As these engines were designed to produce peak power at only 2800 rpm, their very low engine speed meant the designers could dispense with the complexity and weight of an OHV valvetrain."
NO!  This is backward.  It is already dispensing with the complexity and weight of an OHV valvetrain.  That's what makes it a flathead.  That's the reason they can run at slow speed.
The real advantage of running at slow speed it the absence of a gear reduction unit and its associated weight.Longinus876 (talk) 03:10, 5 August 2019 (UTC)
replies: text: Fixed. Best regards, --Johannes (Talk) (Contribs) (Articles) 07:03, 6 August 2019 (UTC)
thread_title:  Advantages 

message: Does a simply logical thing really need citation? A stuck valve can not collide with the piston because it is NOT in the piston path. This is obvious from the arrangement, no scientific evidence needed there. 81.200.57.130 (talk) 07:28, 29 August 2023 (UTC)
thread_title:  citation really needed?