TEE DEE Having issues

Went on a buying spree for cox engines . All new about 22 .
Ranging Black Widow 0.049,0.74,0.09 RC with mufflers , Tee Dees 0.049 and 0.09

I bought a lot.

Unfortunately I am realising the frustration to start these engines

Reed valve Black widow, Golden Bee no issue

Cannot start the Tee Dees , I tested the glows , ok , I can hear the sizzel and i prime.

The 0.074 Tee Dee RC the same however when I remove the muffler on the 0.074 I can start no issue . Well that has a reed also.

What the secret on Tee Dees ?    

I would hate the 5 grand or so I spent only to be in a display case.

Add to the others outside , several Black Widows , few 0.074 RC and 0.09 RC and a 0.15 .

Solid 1.5v orange glow from the glow plug with true 1/2A fuel should start the engine with the right prop.
Note the nitro content 24% and oil type.

This example for sale on Ebay:

https://www.ebay.com/itm/226420990698?_skw=1%2F2A+fuel&itmmeta=01JBK1AT0G3RHZ8SAR4GV34T0Y&hash=item34b7be22ea:g:-pwAAOSwhOZlMDMB&itmprp=enc%3AAQAJAAAA4HoV3kP08IDx%2BKZ9MfhVJKk5PqtSttIUdyCavcIu3%2BvkKOvushsVtZyBdWj7CAjBw75UG9f554j6cSQ3E0xTNpYGPipL7SV49IjAYus5EutjrpqRkp12cAW2K0fi3mvRru2q2nGJALFUsRVER1OXLe3CFqY88lv7hOMF1beO7se%2BHwC2atSM%2BmVFrD81beQhP4cZtjECh24CQH%2BRjbxgqVvvw1H5lTT81wsaobn%2F5LVOIK%2F61lQgpkc8rimDdoL3NKd9%2F7hvfskMQVTVIM3z5vJWQ8JZxdazLi7YscH3Bokr%7Ctkp%3ABk9SR7Kgq-HcZA