Engine name
 

Does anyone know the name of this german engine it is a .75 glow and the only things printed on the engine is made in germany and on the bottom of one engine mount is 11.85 stamped

RE: Engine name
 

Looks like a HB. You didn't show the side with the name on it?

RE: Engine name
 

There is no name on it w8ye
the side showing it laying down on its side has the words made in germany HB???? what is HB

RE: Engine name
 

Hertenberger or something like that. There was a thread just this past week end on the same subject. If you need parts, MECOA has them. They are in California. They bought the rights to the engine and make all the parts. They are good engines.

Look up MECOA on Google.

Here's the other thread... http://www.rcuniverse.com/forum/m_3612106/tm.htm

Enjoy,

Jim

RE: Engine name
 

Guy:

It's definitely an HB carb, and looking at the fins on the lower front of the case I'd say it's probably the 61 PDP version, but the left mounting lug should have the letters "PDP" if it is.
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Jim:

Hirtenberger Patronenfabrik (HP) was Austrian, Helmut Borchart (HB) was the German one. You are right on the other though. MECoA now owns HB. And they own HP too.

Bill.

RE: Engine name
 

HB stood for Helmut Behrnheart and he started in the motor business by making Veco motors under license, His motors were truly good in the 70's and you could count on them to last a long time with reasonable care,
dennis

RE: Engine name
 

------------------


Helmut Bernhardt (I think). My memory isn't as good as - uh - what are we talking about?

RE: Engine name
 

It sure reminds you of the Veco-K&B engines Even the carb is a lot like ones on K&B's from late 80's to early 90's.

Enjoy,

Jim

RE: Engine name
 

Dennis and Ed:

It is Bernhardt, don't know why I wrote Borchardt.
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Jim:

In the picture you posted note the fins just behind the carb. The cylinder casting that could have the PDP porting was made that way. The "Standard" cylinder did not have them. Note in this picture - the common loop scavenged one is on the left, the PDP engine is on the right.

Bill.

RE: Engine name
 

Also, here's a clip from Jim's picture showing the "PDP" on the edge of the mounting lug.

Bill.

RE: Engine name
 

I see what you mean William Robison i see the fins behind the carb on my engine and has no pdp printed on the mount and no its not a .61 versoin the person who gave it to me had 2 of the same engines and was told they were .75s and i have a 80s type 61 engine and the head is smaller i could be wrong

RE: Engine name
 

Hi!
HB did not make any 13cc (.75) engines! The biggest was a 10cc engine (.60).

Regards!
Jan K
Sweden

RE: Engine name
 

RCGuy:

I have the catalogue (that's where I got the picture of the two versions of the 61) and parts listings from the German HB factory, There is no listing for a 0.75 size engine, and RJL still lists nothing in an HB engine larger than 0.61 size.

So, if your engine is a 75 and is an HB, it must be a prototype that never made production, or so few were made that it wasn't listed in the products catalogue.

Does the front of the carb hacve the HB logo?

Bill.

RE: Engine name
 

No sir-William Robison as you can see it has no other id's of any kind i did take and measure the head it is 1-3/4 across the head maybe that mite tell us what size it maybe or someone who has a 61 can do the same and let me know thanks

RE: Engine name
 

RCGuy:

Jim's posted engine picture (from the MECoA web site) looks very much the same as yours. As Jan and I both said, HB never listed an engine larger than 0.61 cid.

If you are willing, and have the instruments, you could pop the head and measure the bore and stroke. That would settle the size question, leaving only the maker in question. The HB 61 is 0.9448" bore and 0.866" stroke.

Some other dimensions: Height overall (not including glow plug) is 99.0 mm (3.8976"), length overall is 89.5 mm, or 3.5236 inches. The outside diameter of the head is not listed.

Bill.

RE: Engine name
 

sorry sir but i have no instruments to measure other then the out side length with a tape measure and not adding the glow plug the length is 3-7/8 long and one other thing i have notice in the pictures is the carb is not square it has a bevel in the center if that matters on my carb that is. thanks bill

RE: Engine name
 

RCGuy:

It does indeed have the bevel, the HB logo should be right smack centered on it. Here's a picture of the HB made carb for the 61.

Bill.;

RE: Engine name
 

RCGuy:

Going back to the dimensions. The 3 7/8" (3.875" ) is just 0.015" short of 99 mm (3.890" ), so I suppose that could be considered measurement error. The 89.5 mm length from the front end of the crank to the rear face of the back plate is just a hair more than 3 1/2" (3.524" ), but even if these dimensions all match your engine could still have a larger bore than the 0.61 engine.

Bill.

RE: Engine name
 

Hooking the tape to the end of the crank and going to the end of the back plate it measures
4-3/8 not 3-1/2 lenght sir thanks bill