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RE: Care & Feeding a DC Dart - 11/8/2012 4:40 AM   
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The D-C starting instructions are attached.




No they're not!



They probably are, but he didn't say WHAT they are attached to!



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RE: Care & Feeding a DC Dart - 11/8/2012 4:49 AM   
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Status: offline 		Gents

Steve P. has kindly emailed me asking if I want a copy of the short DC generic instructions.

I have replied, stating that would be appreciated.

Given the interest I will scan and post a copy of them on this thread.

I have seen a full copy posted somewhere else on the net, I just can't recall where though.

Regards

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RE: Care & Feeding a DC Dart - 11/8/2012 4:51 AM   
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ORIGINAL: fiery

Gents

Steve P. has kindly emailed me asking if I want a copy of the short DC generic instructions.

I have replied, stating that would be appreciated.

Given the interest I will scan and post a copy of them on this thread.

I have seen a full copy posted somewhere else on the net, I just can't recall where though.

Regards



Probably on the Model Engine News site!

Ray

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RE: Care & Feeding a DC Dart - 11/8/2012 9:10 AM   
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Status: offline 		Yes those instructions would be interesting to see.

I kind of pride myself on not having an engine beat me and I think I'm winning this one.

Today I mixed up a fresh batch of fuel. 25%C, 35%E & 40%K no IPN. Put a 7X4 prop on and started flicking away when one of Sydney's nice Spring thunderstorms showed up. Got a couple of little burps that had me thinking it was about to burst into song. Then discretion got the better of valour and put the lot away until there was no more lightening trying to curl my hair.

It definitely seemed a lot keener, so success is near.

Thanks for all the input.

Greg

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RE: Care & Feeding a DC Dart - 11/8/2012 9:17 PM   
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Status: offline 		Greg, if it is still hard to get going try the tip from Steve Rothwell - preheat the whole thing with a heat gun or hair dryer.

It just may help mate.


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RE: Care & Feeding a DC Dart - 11/8/2012 9:51 PM   
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Status: offline 		Generic DC starting instructions for model diesel engines, as kindly provided by Steve P.



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RE: Care & Feeding a DC Dart - 11/8/2012 9:58 PM   
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ORIGINAL: Recycled Flyer

Greg, if it is still hard to get going try the tip from Steve Rothwell - preheat the whole thing with a heat gun or hair dryer.

It just may help mate.




I can't really see how Chris. If the fits are marginal it will make starting even harder.

You usually heat the upper cylinder with a heat gun or cup of boiling water if the P/L fit is so tight that turning over is difficult.

Ray

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RE: Care & Feeding a DC Dart - 11/8/2012 10:55 PM   
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ORIGINAL: Recycled Flyer

Greg, if it is still hard to get going try the tip from Steve Rothwell - preheat the whole thing with a heat gun or hair dryer.

It just may help mate.




I can't really see how Chris. If the fits are marginal it will make starting even harder.

You usually heat the upper cylinder with a heat gun or cup of boiling water if the P/L fit is so tight that turning over is difficult.

Ray

If the whole engine (and I did say "preheat the whole thing" not just the upper cylinder) is brought up to a mild even heat I can see it making a difference over a stone cold one Ray.

Anyway what do you have to lose by trying this?



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RE: Care & Feeding a DC Dart - 11/8/2012 11:48 PM   
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Status: online 		IS the engine squeeky tight tight on flipping with a few drops of oil in it in full 360 degrees of rotation:: martin

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RE: Care & Feeding a DC Dart - 11/8/2012 11:54 PM   
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ORIGINAL: Recycled Flyer


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ORIGINAL: qazimoto


quote:

ORIGINAL: Recycled Flyer

Greg, if it is still hard to get going try the tip from Steve Rothwell - preheat the whole thing with a heat gun or hair dryer.

It just may help mate.




I can't really see how Chris. If the fits are marginal it will make starting even harder.

You usually heat the upper cylinder with a heat gun or cup of boiling water if the P/L fit is so tight that turning over is difficult.

Ray

If the whole engine (and I did say ''preheat the whole thing'' not just the upper cylinder) is brought up to a mild even heat I can see it making a difference over a stone cold one Ray.





Please explain!



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RE: Care & Feeding a DC Dart - 11/9/2012 12:04 AM   
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Status: online 		IS the engine squeeky tight tight on flipping with a few drops of oil in it in full 360 degrees of rotation:? If it is back the compression all the way off put a few drops of oil in it
NO FUEL and spin with a small electric motor I have used a sullivan 1/2A starter do this in short bursts maybe 15 seconds a few times then it should feel better on flipping or spring starter and light off martin

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RE: Care & Feeding a DC Dart - 11/9/2012 12:38 AM   
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ORIGINAL: qazimoto


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ORIGINAL: qazimoto


quote:

ORIGINAL: Recycled Flyer

Greg, if it is still hard to get going try the tip from Steve Rothwell - preheat the whole thing with a heat gun or hair dryer.

It just may help mate.




I can't really see how Chris. If the fits are marginal it will make starting even harder.

You usually heat the upper cylinder with a heat gun or cup of boiling water if the P/L fit is so tight that turning over is difficult.

Ray

If the whole engine (and I did say ''preheat the whole thing'' not just the upper cylinder) is brought up to a mild even heat I can see it making a difference over a stone cold one Ray.





Please explain!



Beyond stating that I took a very old leaky diesel to Geoff Potters place a few weeks ago that was hit with a heat gun and the proceeded to start 2nd flick (and this was after it was agreed on first inspection that it would run at all), no.

It either works or it don't - I really don't care which.



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RE: Care & Feeding a DC Dart - 11/9/2012 12:46 AM   
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ORIGINAL: AMB

IS the engine squeeky tight tight on flipping with a few drops of oil in it in full 360 degrees of rotation:? If it is back the compression all the way off put a few drops of oil in it
NO FUEL and spin with a small electric motor I have used a sullivan 1/2A starter do this in short bursts maybe 15 seconds a few times then it should feel better on flipping or spring starter and light off martin



Martin,

the notion of "squeaky tight" and the name "DC Dart" have probably never been used before in the same sentence.

Ray

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RE: Care & Feeding a DC Dart - 11/9/2012 12:49 AM   
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Beyond stating that I took a very old leaky diesel to Geoff Potters place a few weeks ago that was hit with a heat gun and the proceeded to start 2nd flick (and this was after it was agreed on first inspection that it would run at all), no.

It either works or it don't - I really don't care which.


Did Mt Potter mutter some magical incantation before he hit the diesel?



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RE: Care & Feeding a DC Dart - 11/9/2012 12:56 AM   
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Status: online 		OK all my suggestion was based on a very tight p/l fit if that is not the case , waste of time I did this a few years back on a tight TT10 it would fire bout did not have the strength
to run against the iniital tightness just a few pops, after the treatment no issues martin

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RE: Care & Feeding a DC Dart - 11/9/2012 1:05 AM   
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Status: online 		Ray having never seen a dart or owned one no knowledge of their fit martin

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RE: Care & Feeding a DC Dart - 11/9/2012 1:35 AM   
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Did Mt Potter mutter some magical incantation before he hit the diesel?




Sorry Ray, you caught me in a bad mood today.


"Mt Potter" indeed! It always seems that you have to climb the mount in order to seek knowlegde.
And "magical incantation?" No no no, there was no time for that in between regales of past team race glories, triumphs abroad, battles with Norse Gods  and  .......... where was I? Oh yes, black magic.

Just what are we accussing Geoff of now? Anything beyond having a positive attitude would have to be a stretch!


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RE: Care & Feeding a DC Dart - 11/9/2012 5:38 AM   
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Status: offline 		Well I'm afraid even Harry Potter wouldn't be able to save this one. Whether he was to incant or wave his wand it would make no difference.

It looks like I've actually been flogging a dead horse (maybe a dead dart!). The expression WOFTAM seems appropriate at this time.

Careful examination revealed a pair of hairline cracks, in exactly the place where hairline cracks are least needed. I'll ask the owner if he wants to manufacture a new piston for it, but otherwise I'm totally over it.

Thanks for all who offered advice and encouragement.

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RE: Care & Feeding a DC Dart - 11/9/2012 6:06 AM   
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Status: online 		If it looks like this Dart has breathed it's last, I would like to put in a bid for it's crankshaft.



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RE: Care & Feeding a DC Dart - 11/9/2012 6:33 AM   
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Status: offline 		Looking at the external dings and damage clearly visible in your closeups greggles, I think you (or the vendor) have rather stretched the definition of 'new-ish' in respect of this Dart.............

ChrisM
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RE: Care & Feeding a DC Dart - 11/9/2012 9:42 AM   
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If it looks like this Dart has breathed it's last, I would like to put in a bid for it's crankshaft.




The owner is capable of making a new piston for it, so I think the cs is going to be used.

I'll let you know if there is any change.

Chris,

I've got to say that the macro function on my camera shows more than I saw previously. My new-ish estimation came from a view that the cooling muff wasn't butchered to b@ggery and the piston/cylinder felt good to flick over.

Greg

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RE: Care & Feeding a DC Dart - 11/9/2012 10:26 AM   
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Status: offline 		I'm glad the owner wishes to save it. Allbon/DC Darts are a true classic.

David Owen could have some serviceable pistons. Worth an enquiry perhaps.

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RE: Care & Feeding a DC Dart - 11/9/2012 2:32 PM   
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Status: online 		Lets hope a replacement piston can be gotten , It may have been a bad piece of cast iron to begin with these are not magnafluxed, if that engine had started and the piston failed it would have been total destruction martin

< Message edited by AMB -- 11/9/2012 3:03 PM >

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RE: Care & Feeding a DC Dart - 11/9/2012 11:02 PM   
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Status: online 		Possibly someone in the past has tried to reclaim the p/l fit by over-enthusiastic cherry-bombing or tapped the piston with a hammer just a bit too hard.



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RE: Care & Feeding a DC Dart - 11/9/2012 11:40 PM   
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Status: offline 		I know I uploaded it with my post but it didn't attach.  The site admin is aware of it.  The instructions are (1) very generic, and (2) very short.  If you want a copy, email me at ama40916@comcast.net    Steve_P.


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