.051 connecting rods.

**Cribbs74** Mon Mar 12, 2012 9:34 am

Fellers,

I went through an .051 this weekend and I noticed that the rod had an oil hole on the big end. I have seen this on the .09 and .15's but, never the smaller TD's. This is an early engine (no milled fins) is this normal?

If this has been covered before sorry for the repeat.

Ron

mitchg95 Mon Mar 12, 2012 10:12 am

i have noticed this before with one of my .051's, Im not an expert but maybe it is so that oil can lubricate the inside of the connecting rod where it attaches to the crankshaft for smoother running with less friction

**Cribbs74** Mon Mar 12, 2012 10:16 am

mitchg95 wrote:i have noticed this before with one of my .051's, Im not an expert but maybe it is so that oil can lubricate the inside of the connecting rod where it attaches to the crankshaft for smoother running with less friction

Thanks Mitch, that is surely what it was designed for. I was just wondering if this was done on early .049/.051's only. I have dissassembled some later ones and don't recall seeing the hole. I may have just missed it though.

Mudhen Mon Mar 12, 2012 10:23 am

mitchg95 Mon Mar 12, 2012 10:30 am

cribbs74 wrote:
mitchg95 wrote:i have noticed this before with one of my .051's, Im not an expert but maybe it is so that oil can lubricate the inside of the connecting rod where it attaches to the crankshaft for smoother running with less friction

Thanks Mitch, that is surely what it was designed for. I was just wondering if this was done on early .049/.051's only. I have dissassembled some later ones and don't recall seeing the hole. I may have just missed it though.

no problem cribbs74, i've seen it on larger engines like in my 30.5cc hpi baja 5b clone

**Cribbs74** Mon Mar 12, 2012 10:38 am

Mudhen wrote:I've seen these for both Tee Dee .049 and .051, as well as non-tapered variants. All the ones I have came from the sixties, but I'm not sure of the time frame. It was a great idea.
Mud

Mud,

I was hoping you would reply, thank you. I have only broke down a few .049's and .051's and had never seen one before. This engine was given to me by a guy that had a bunch of older stuff. I wouldn't doubt this .051 is an early issue. The TD .020 he gave me had the black NV but, it had a stepped cylinder and the Pee Wee he gave me had a straight cylinder no "Cox" on the backplate and no venturi screen.

The .051 appears to be almost new so I am happy. Thanks again.

Ron

John Goddard Mon Mar 12, 2012 2:18 pm

I think those 051 con rods are Fab!
lol!

**Cribbs74** Mon Mar 12, 2012 2:24 pm

John Goddard wrote:I think those 051 con rods are Fab!

Did any of those .051 rods of yours have the hole John? I am pretty sure the .051 wannabe didn't. Wink

microflitedude Mon Mar 12, 2012 2:27 pm

My .051 Killer Bee does not have the hole.

John Goddard Mon Mar 12, 2012 2:36 pm

cribbs74 wrote:
John Goddard wrote:I think those 051 con rods are Fab!

Did any of those .051 rods of yours have the hole John? I am pretty sure the .051 wannabe didn't.

I'm working till v late Ron I'll take a look in the
Morning
J

**Cribbs74** Mon Mar 12, 2012 2:40 pm

John Goddard wrote:
cribbs74 wrote:
John Goddard wrote:I think those 051 con rods are Fab!

Did any of those .051 rods of yours have the hole John? I am pretty sure the .051 wannabe didn't.
I'm working till v late Ron I'll take a look in the
Morning
J

Then quit your posting and get back to work slacker!

-The Management-
Very Happy

John Goddard Tue Mar 13, 2012 8:01 am

I've looked at 3 of each Ron as well as the 'doubtful' 04519.. from the 60's, 70's, pre venturi screen and post.
None this end, although the indent on the bottom of the rod does vary a lot to the point of almost encouragining
taking a drill to it.
Very Happy

**Cribbs74** Tue Mar 13, 2012 8:18 am

John Goddard wrote:I've looked at 3 of each Ron as well as the 'doubtful' 04519.. from the 60's, 70's, pre venturi screen and post.
None this end, although the indent on the bottom of the rod does vary a lot to the point of almost encouragining
taking a drill to it.

Do it!!!!

Lol. Not sure if it will make any difference anyway. I will take a pic sometime and post it up.

mitchg95 Tue Mar 13, 2012 9:15 am

i took apart another cox engine last night, my golden bee. My golden bee is not stock, it has a cylinder/piston combo that does not have spi, i also found that the con rod on the piston in my gb also has a hole drilled in the bottom

John Goddard Tue Mar 13, 2012 9:28 am

I reckon you lot have stumbled on another 'crop circles' Very Happy

I'm on the phone to Mulder and Scully as I type
lol!

mitchg95 Tue Mar 13, 2012 9:36 am

yeah probably lol!

, i ruined the internals of my golden bee by not being careful Censored

thats why i put a spare parts in it that i had lying around, she's all good now Airplane

Sponsored content

.051 connecting rods.

.051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.

Re: .051 connecting rods.