Thanks.You may wish to post this in the For Sale / Trade / Wanted | Garden Tractor Forums (gardentractortalk.com) section as the TRA-10D was used on other garden tractor models as well - just a suggestion.
Thanks. I think the ball and spring are fine but I will check them.TRA-10D, TR-10D and S8D cams should all be the same.
S7D Cam Might be the same but I can not guarantee it. I have an S7D but I've never had it apart. The block looks to be similar but the breaker box? for the points is not in the same location.
Make sure that your Camshaft Thrust Spring and ball bearing are not damaged. If they are I suggest replacing them as well. The cam can slide back and the gear will come in contact with the crank bearing and do all sorts of damage to the engine. I had 1 that someone had supposedly rebuilt and they did not re-install the bearing. It caused the cam to break which came in contact with the crank and it blew a big ole hole in the side of the block.
Spring and bearing are Circled in red. Easiest way to install the bearing without having it fall out every time you try to put the cam cover on, is to literally glue the bearing into the hole in the cam cover with heavy Grease. The spring will stay in the cam no problem but that bearing can be a bit of a pain in the rump.
View attachment 407237
Used spring and ball if you need 1.
Bolens 1054 Tractor Information Model - 1054 01. Complete tractor is not available for sale. Engine - Wisconsin TRA-10D - Spec#285633 - 10HP. Local pickup is available. Year - 1972.www.ebay.com
This would be worth having if you are remotely close to Phillipsburg, New Jersey. Complete Wisconsin TRA-10D engine for $25 ???
Find many great new & used options and get the best deals for Wisconsin Motor TRA10D from Bolens 1050 garden tractor used at the best online prices at eBay! Free shipping for many products!www.ebay.com
I noticed how the flyweight was on the inside. I had wondered if this cam was for the engines with a fuel pump. But that wouldn't make sense.That cam looks like it should work, but as you said the EA-123B shouldn't have compression release. The one pictured there does. Maybe they added it to the EA-123G before switching to the EA-130A/C.
EDIT: The compression release on that one is setup differently. The flyweight is on the inside of the cam gear versus the outside on the EA-130.
For future reference, the S7D and S8D/TR/TRA do not share the same camshaft.
I am located in the Raleigh area of North Carolina. And I do really need it, becauase I really want to get this engine running again.Okay, I think I may have figured this out. I believe the EA-123G and similar EA-121E that are on eBay are for the very rare vertical shaft HS-7D and HS-8D models. My HS-8D manual lists a EA-123D camshaft with no mention of compression release, the same as many S-8Ds. I'm guessing EA-123G with it's inside flyweight was it's compression release replacement. Of course this is all speculation on my part. I've never seen let alone had one of those vertical shaft engines apart.
I have an EA-130C if you really need it. Where are you located?