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Author Topic: HP .49 VT engine?  (Read 857 times)

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Offline tentpeg

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HP .49 VT engine?
« on: April 05, 2011, 19:03:01 PM »
I obtained one of these vintage engines recently and was wondering if anyone can enlighten me as to the use of the nipple at the top of this engine, adjacent to the valve mechanism.  $%& I assume it must be for the lubrication of the rotary valve?? Maybe someone has an original instruction manual and can tell me or send a copy of the manual. I would be very grateful for any information you can supply before I bug*er up this ancient machine.
Thanks in advance.
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Tentpeg:D
The art, or rather the knack of flying is the ability to be able to throw oneself at the ground and miss. ( Douglas Adams).

Online rogerandout

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Re: HP .49 VT engine?
« Reply #1 on: April 05, 2011, 19:13:13 PM »
according to this

http://www.rcuniverse.com/forum/m_3344738/printable.htm
you connect ex px to cyl head as lube

Online rogerandout

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Re: HP .49 VT engine?
« Reply #2 on: April 05, 2011, 19:17:50 PM »
perhaps not so old..........still available here
https://shop.mecoa.com/shopdisplayproducts.asp?id=41

Offline PDR

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Re: HP .49 VT engine?
« Reply #3 on: April 05, 2011, 21:04:10 PM »
Never had the 49, but the 21 was a pile of junk. It would run, but over the next couple of running hours its power would disappear to nothing. They had major lubrication issues and serious design flaws!

On the 21 there were silicone pipes connecting several nipples on the engine to distribute oil, but it still didn't work.

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Offline BrianB

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Re: HP .49 VT engine?
« Reply #4 on: April 05, 2011, 21:21:55 PM »
I somehow remembered the manufacturing rights were bought by a US company. Looks like it was K & B.

Even when HP made them, they were never hugely popular. They were unreliable and down on power. Easily outperformed and outclassed by the opposition. Curiousity value only I'd say.
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Offline BrianB

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Re: HP .49 VT engine?
« Reply #5 on: April 05, 2011, 21:23:39 PM »
It's suddenly come to me now. RJL Industries originally bought the rights from HP. They've obviously suckered K&B into buying them now.....
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Offline tentpeg

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Re: HP .49 VT engine?
« Reply #6 on: April 06, 2011, 19:11:56 PM »
Thanks for all your comments guys. :af
I agree with the comments about the .21 being gutless. I also owned one many moons ago and it wouldn't pull the skin off a rice pud. I did buy this , mainly for the curiosity value as it will be fitted to an up-scaled (60") Popsie for a one off vintage event at our club later this year. I thought the engine would add to the vintage feel of the model. If it proves to be as hopeless as the .21, I will sell it through ebay after the event. Thanks also for the links you gave as I managed to download a manual and have now found out how the plumbing is supposed to work.
Thanks again.
Regards,
Tentpeg:D
The art, or rather the knack of flying is the ability to be able to throw oneself at the ground and miss. ( Douglas Adams).

 

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