TD .049 Parts questions
05-14-2005, 10:04 AM
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TD .049 Parts questions
I have this TD 049 , and it has some parts that are different. The piston, at the bottom of the rod, at the bottom of the socket that connects to the crankshaft, has a small hole at the bottom. I knows its for oil, but can this tell me the age of the engine? Also, the Glowhead is a high compression type, it has four fins that are all different sizes. Never seen this before, can someone give the age of these parts?
Also, in the 70's, the TD's port timing was changed, along with some other mods. How much did this change the engine's preformance, over say this one?
Thanks!
Remby
Also, in the 70's, the TD's port timing was changed, along with some other mods. How much did this change the engine's preformance, over say this one?
Thanks!
Remby
05-14-2005, 10:14 AM
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RE: TD .049 Parts questions
I see another, the washer between the prop hub, and the retainer/crankcase is a red "plastic", not steel. A product of it's age?
What should you look at to see how much life is left for the crankcase?
Thanks again..
Remby
What should you look at to see how much life is left for the crankcase?
Thanks again..
Remby
05-14-2005, 01:44 PM
#3
RE: TD .049 Parts questions
I know of only two types of crankcases, one has a slight lip around the crankcase opening inside, and the other is flat across. I presume the ones with the lip are the better type, as this would reduce thrust load friction, but less longevity as it wears faster.
The case thats flat across the crank face uses a shorter crank length to the drive plate shoulder, other than that I think the crank is the same. I would think the flat case would hold the crank location better throughout the case life, saving the lower end of the rod and crankpin.
How much life is left in a crankcase i would imagine it would depend how bad you are hurting the rod ends or crankpin, because as the crankshaft wears forward into the case, the rod end starts to move outward on the crankpin. leaving it open for breakage.
The case thats flat across the crank face uses a shorter crank length to the drive plate shoulder, other than that I think the crank is the same. I would think the flat case would hold the crank location better throughout the case life, saving the lower end of the rod and crankpin.
How much life is left in a crankcase i would imagine it would depend how bad you are hurting the rod ends or crankpin, because as the crankshaft wears forward into the case, the rod end starts to move outward on the crankpin. leaving it open for breakage.
05-14-2005, 01:48 PM
#4
RE: TD .049 Parts questions
I know of only two types of crankcases, one has a slight lip around the crankcase opening inside, and the other is flat across. I presume the ones with the lip are the better type, as this would reduce thrust load friction, but less longevity as it wears faster.
The case thats flat across the crank face uses a shorter crank length to the drive plate shoulder, other than that I think the crank is the same. I would think the flat case would hold the crank location better throughout the case life, saving the lower end of the rod and crankpin.
How much life is left in a crankcase i would imagine it would depend how bad you are hurting the rod ends or crankpin, because as the crankshaft wears forward into the case, the rod end starts to move outward on the crankpin. leaving it open for breakage.
The case thats flat across the crank face uses a shorter crank length to the drive plate shoulder, other than that I think the crank is the same. I would think the flat case would hold the crank location better throughout the case life, saving the lower end of the rod and crankpin.
How much life is left in a crankcase i would imagine it would depend how bad you are hurting the rod ends or crankpin, because as the crankshaft wears forward into the case, the rod end starts to move outward on the crankpin. leaving it open for breakage.
05-14-2005, 03:24 PM
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RE: TD .049 Parts questions
JETPACK;
This one is flat across, I supose that means that it is older as the newer ones I have you can see the lip inside, or it could be near the end of it's lifespan.
Also, again have never seen a piston with a oil hole at the base of the crankpin socket, perhaps someone knows when Cox was doing this..
Remby
This one is flat across, I supose that means that it is older as the newer ones I have you can see the lip inside, or it could be near the end of it's lifespan.
Also, again have never seen a piston with a oil hole at the base of the crankpin socket, perhaps someone knows when Cox was doing this..
Remby
05-14-2005, 05:21 PM
#6
RE: TD .049 Parts questions
Iv'e had quite a few types of cox engines apart, mostly 20 years ago, and now again today...but I've never seen one with an oil passage where you explain, however its not a bad idea...most larger engines carry the same feature. To add one would be interesting. Is there any way you could measure the hole size? Sometimes if its a fractionial size, a piece of known-sized brass stock can be used to gage. I'm wondering if it might be a good idea to start putting them in, if possible.
05-14-2005, 05:56 PM
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RE: TD .049 Parts questions
Remby,
Your rod is modified by someone and not a Cox factory mod. I have had a couple like that before myself that I bought used with some other speed parts.
Later,Tim
Your rod is modified by someone and not a Cox factory mod. I have had a couple like that before myself that I bought used with some other speed parts.
Later,Tim
05-14-2005, 08:52 PM
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RE: TD .049 Parts questions
The piston you describe is a Cox part I have several of these in engines and in the original Cox packaging. The rods in the photo are all drilled at the bottom though this may not be visable. As to the age of them I don't have a clue. - Steve B.
And now for your viewing pleasure....
And now for your viewing pleasure....
05-15-2005, 12:55 AM
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RE: TD .049 Parts questions
Well, I did not think to measure the hole size, should have. I guess it was 1/64" or 1/32", but this may not be right. It did look factory stock, and was not as beefy as a new, late model rod. As far as drilling, I don't see why not if you have the needed equiptment, the rod looks to be the same hardness as a newer one.
The cylinder has no "ears" for the wrench and requires a wrench on the exzaust ports, or pliers so don't wish to take it apart again until it gets a bit of runtime on it. If all goes well I can get the data you requested.
BURTCS
Thanks for the info. The package in your picture shows The Santa Ana Address, Helps with the date of manufacture. Can you see the Part#, price ? It may be helpful in getting the correct time.
I have also worked on lots of these and never seen these parts, so am quite sure the run of them was limited..
Remby
The cylinder has no "ears" for the wrench and requires a wrench on the exzaust ports, or pliers so don't wish to take it apart again until it gets a bit of runtime on it. If all goes well I can get the data you requested.
BURTCS
Thanks for the info. The package in your picture shows The Santa Ana Address, Helps with the date of manufacture. Can you see the Part#, price ? It may be helpful in getting the correct time.
I have also worked on lots of these and never seen these parts, so am quite sure the run of them was limited..
Remby
05-15-2005, 03:23 AM
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RE: TD .049 Parts questions
Remby: Here is what I know...
The package on the left is for a TD 0.049 part number 1703, the price was $1.50. The package one the right is for a TD 0.051, part number 2003, the price is obliterated (but was probably also $1.50, I can make out 50). As your keen eyes observed they were made in Santa Ana. I don't know what the hole size is but I will find out this coming week when I can get to some gauge pins.
I can only speculate here but I suspect they didn't work out. The hole size appears to be about 1/32. This removes about 1/3 of the rod bearing material and I am guessing they did last very long on a high winding engine.
- Steve B.
The package on the left is for a TD 0.049 part number 1703, the price was $1.50. The package one the right is for a TD 0.051, part number 2003, the price is obliterated (but was probably also $1.50, I can make out 50). As your keen eyes observed they were made in Santa Ana. I don't know what the hole size is but I will find out this coming week when I can get to some gauge pins.
I can only speculate here but I suspect they didn't work out. The hole size appears to be about 1/32. This removes about 1/3 of the rod bearing material and I am guessing they did last very long on a high winding engine.
- Steve B.
05-15-2005, 10:28 AM
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RE: TD .049 Parts questions
BURTCS ..
Thanks for the info. The one here looks to be pretty good, although unsure of it's run time use. Don't think it had much, but will keep a watch on it.
There must of been a issue as to somthing to make these such a rare item. As the TD did not look to have ever been taken apart before, I'm sure it was assembled with the piston, probally right at Santa Ana.
I have another (Medallion) using a old aluminum rod piston, and know these were not in production too long as well. But, it runs better with it so why not let 'er rip?
Remby
Thanks for the info. The one here looks to be pretty good, although unsure of it's run time use. Don't think it had much, but will keep a watch on it.
There must of been a issue as to somthing to make these such a rare item. As the TD did not look to have ever been taken apart before, I'm sure it was assembled with the piston, probally right at Santa Ana.
I have another (Medallion) using a old aluminum rod piston, and know these were not in production too long as well. But, it runs better with it so why not let 'er rip?
Remby
05-20-2005, 09:07 AM
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RE: TD .049 Parts questions
BURTCS;
Thanks for the extra info. I have flown the engine and it looks to run good. I will post any trouble I see after it has some hours on it.
That glow head has not been addressed, I still dont know when cox made H.C. heads with 4 fins, the ones I have seen before came with less. Probally as old as the piston as the motor looks to be stock from the company. When did they move (Cox) from Santa Ana?
Thanks again for the info,
Remby
Thanks for the extra info. I have flown the engine and it looks to run good. I will post any trouble I see after it has some hours on it.
That glow head has not been addressed, I still dont know when cox made H.C. heads with 4 fins, the ones I have seen before came with less. Probally as old as the piston as the motor looks to be stock from the company. When did they move (Cox) from Santa Ana?
Thanks again for the info,
Remby
05-21-2005, 09:47 AM
#16
RE: TD .049 Parts questions
I started a small collection of .049/.051's again and was wondering if anyone knows where to find a parts list breakdown of all the parts. I found small plastic boxes for each one and would like to make an index card of all the part numbers and descriptions for each to keep with them. All i been able to find so far is the picture below, but that only includes "parts pack" numbers. Can anyone help? I know long time ago when i bought one new, it came with an instruction sheet with all the parts listed as well as the price for ordering. Does anyone have one they can scan and share?
06-09-2005, 09:09 AM
#17
RE: TD .049 Parts questions
ORIGINAL: Remby
The cylinder has no "ears" for the wrench and requires a wrench on the exzaust ports, or pliers so don't wish to take it apart again until it gets a bit of runtime on it. If all goes well I can get the data you requested. BURTCS
Remby
The cylinder has no "ears" for the wrench and requires a wrench on the exzaust ports, or pliers so don't wish to take it apart again until it gets a bit of runtime on it. If all goes well I can get the data you requested. BURTCS
Remby
George
06-11-2005, 11:12 PM
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RE: TD .049 Parts questions
jetpack i have that engine with a throttle body made out of alum on the needle valve side under the mouth of the carb is a *** for the spring to hook on same brass ring under carb same motor but with out throttle body i will look for the box tomorrow and find the info you need oh does the glow head have 4 fins
06-11-2005, 11:55 PM
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RE: TD .049 Parts questions
Jetpack here you go best list i could come up with for the 049 and .15 TEE DEE
PARTS LIST
TEE DEE.049 TEE DEE .15
Cat.No. Price List back then parts Cat.No.List price
Crankcase 1701 1.50 1801 2.40
Glow Head 1702 .65 1802 .75
Piston & Rod Assy. 303 1.50 1103 1.75
Cylinder 1704 1.50 1404 1.75
Crankshaft 1705 2.25 1805 3.00
Needle Valve & Spring 1709 .60 1809 .75
Prop Drive Plate 1710 .20 1810 .25
Venturi 1717 .60 1817 .85
Prop Spinner & Screw 1718 .30 1418 .40
Retainer Nut 1721 .25 1821 .35
Crankcase Rear Cover 1722 .35 1822 .40
Thrust Washer 1723 .10 1823 .15
Carburetor Body 1724 .60 1824 .70
Carburetor Complete 1725 2.50 1825 3.00
Needle Valve Body 1726 .60 1826 .85
Engine Mount 1560 .50 ----- ---
Wrench 1530 .25 1130 .35
06-12-2005, 12:05 AM
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RE: TD .049 Parts questions
jetpack to understand this mess of numbers the first 4 numbers to the left is the part number for the 049 the the next 2 to 3 is the price at that time for the 049 and then the other 4 numbers on the same line is for the .15 motor and last 2 to 3 is its price
ORIGINAL: layback2
Jetpack here you go best list i could come up with for the 049 and .15 TEE DEE
PARTS LIST
TEE DEE.049 TEE DEE .15
Cat.No. Price List back then parts Cat.No.List price
Crankcase 1701 1.50 1801 2.40
Glow Head 1702 .65 1802 .75
Piston & Rod Assy. 303 1.50 1103 1.75
Cylinder 1704 1.50 1404 1.75
Crankshaft 1705 2.25 1805 3.00
Needle Valve & Spring 1709 .60 1809 .75
Prop Drive Plate 1710 .20 1810 .25
Venturi 1717 .60 1817 .85
Prop Spinner & Screw 1718 .30 1418 .40
Retainer Nut 1721 .25 1821 .35
Crankcase Rear Cover 1722 .35 1822 .40
Thrust Washer 1723 .10 1823 .15
Carburetor Body 1724 .60 1824 .70
Carburetor Complete 1725 2.50 1825 3.00
Needle Valve Body 1726 .60 1826 .85
Engine Mount 1560 .50 ----- ---
Wrench 1530 .25 1130 .35
Jetpack here you go best list i could come up with for the 049 and .15 TEE DEE
PARTS LIST
TEE DEE.049 TEE DEE .15
Cat.No. Price List back then parts Cat.No.List price
Crankcase 1701 1.50 1801 2.40
Glow Head 1702 .65 1802 .75
Piston & Rod Assy. 303 1.50 1103 1.75
Cylinder 1704 1.50 1404 1.75
Crankshaft 1705 2.25 1805 3.00
Needle Valve & Spring 1709 .60 1809 .75
Prop Drive Plate 1710 .20 1810 .25
Venturi 1717 .60 1817 .85
Prop Spinner & Screw 1718 .30 1418 .40
Retainer Nut 1721 .25 1821 .35
Crankcase Rear Cover 1722 .35 1822 .40
Thrust Washer 1723 .10 1823 .15
Carburetor Body 1724 .60 1824 .70
Carburetor Complete 1725 2.50 1825 3.00
Needle Valve Body 1726 .60 1826 .85
Engine Mount 1560 .50 ----- ---
Wrench 1530 .25 1130 .35
06-12-2005, 02:24 AM
#22
RE: TD .049 Parts questions
Layback2,
Yes that helps out a great deal. Thank you for posting them. Now I will be able to better catalog my parts boxes. Sometimes when something is found for sale, only a part number is given...this will help in that respect also.
Yes that helps out a great deal. Thank you for posting them. Now I will be able to better catalog my parts boxes. Sometimes when something is found for sale, only a part number is given...this will help in that respect also.
06-13-2005, 09:39 AM
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RE: TD .049 Parts questions
BURTCS
Could you let me know if all the pistons that you describe as in packages with the oil hole (part # 1703) are marked for the TD only? Perhaps this was considered as a high preformance part for the td only? Let me know what you can..
Thanks!
Remby
Could you let me know if all the pistons that you describe as in packages with the oil hole (part # 1703) are marked for the TD only? Perhaps this was considered as a high preformance part for the td only? Let me know what you can..
Thanks!
Remby
