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Old Aug 10, 2011, 07:39 PM
Grumpa Tom
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United States, CA, Los Angeles
Joined Sep 2003
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Webra T4-60 Custom

Here is my latest customized engine. The Webra T4-60 was a unique design for it's day. Definitely out of the ordinary compared to all the other four stroke engines that were around in the 1980's.

This engine was locked up solid with dried castor oil residue, and so I overhauled it and painted and polished the various bits.

Before



After



More









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Old Aug 10, 2011, 10:07 PM
Jack of all master of none
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Baltimore MD USA
Joined Jan 2011
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great job! did you have to replace the piston? I hope it runs as nice as it looks. so this goes in the beater bird?

Bruce
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Old Aug 10, 2011, 10:53 PM
Grumpa Tom
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United States, CA, Los Angeles
Joined Sep 2003
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Thanks Bruce.

No, this is not for the beater bird, lol.

The piston was okay. I replaced the bearings, the crankshaft key and prop driver, the prop nut, and all bolts with new stainless steel versions. And I hand made the rear cover gasket.

I painted the entire engine, and then after it was cured I scraped the paint off of the fins edges and then polished the edges.

I polished the intake port on the rotary valve. I polished the combustion chamber in the head. I polished the carb body, the carb intake tube, the exhaust header, the muffler, the prop driver, the prop washer, and the belt drive pulley even though it is hidden by the belt cover. I know it's shiny, lol.
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Old Aug 11, 2011, 02:03 PM
Jack of all master of none
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Baltimore MD USA
Joined Jan 2011
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Originally Posted by Kmot View Post
Thanks Bruce.

No, this is not for the beater bird, lol.

The piston was okay. I replaced the bearings, the crankshaft key and prop driver, the prop nut, and all bolts with new stainless steel versions. And I hand made the rear cover gasket.

I painted the entire engine, and then after it was cured I scraped the paint off of the fins edges and then polished the edges.

I polished the intake port on the rotary valve. I polished the combustion chamber in the head. I polished the carb body, the carb intake tube, the exhaust header, the muffler, the prop driver, the prop washer, and the belt drive pulley even though it is hidden by the belt cover. I know it's shiny, lol.
yea but that's like porting the engine it should perform better than ever now!

Bruce
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Old Aug 11, 2011, 05:29 PM
Registered User
USA, CT, Groton
Joined Aug 2010
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Great job.

Just had to say great job.
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Old Aug 11, 2011, 07:25 PM
Grumpa Tom
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United States, CA, Los Angeles
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Thank you!
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Old Aug 12, 2011, 10:57 PM
Grumpa Tom
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United States, CA, Los Angeles
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Webra T4-60 (9 min 50 sec)
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Old Aug 29, 2011, 03:48 PM
Boomer1
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United States, CA, Temecula
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Kmot
Wow, what a great project! Simply amazing.
Boomer
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Old Sep 02, 2011, 07:18 PM
Grumpa Tom
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United States, CA, Los Angeles
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Thanks Boomer!
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