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Another Old Dirty Feta Build - Ported MS660

beaglebriar

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I did the shaping with these three Carbide burrs. Two on the bottom are eBay (Chinese) specials and the one on the top is from CC specialty.
View attachment 167174
I need to pick up a longer one like that. Could see where it'd be handy.
 

MustangMike

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Thinking about raising the trans to 115 ish. Cant really drop the jug very much to get the exh roof lower as there is not much meat left on the exh side piston skirt.

I would be worried about making the transfer lazy going down to 115 … will someone more knowledgeable than me please pipe in and say if I'm right or wrong? IMO, 120 S/B OK.
 

AlfA01

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I need to pick up a longer one like that. Could see where it'd be handy.

It works good but for me it's more difficult to control. You have to slow your roll and take care not to slip. It's got a lot more flex from the longer shaft. Great for getting into transfers from the lowers.
 

AlfA01

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I had an idea last night and was curious to know if it would work. I got up before everyone else and went to fetch one of the 661 carbs I had for the conversion from MT. It's a Walbro WJ135B.

With a few adjustments, I think it's going to work real nice. The WJ69 was a little sketchy. Filled with wood chips on both diaphragms and some rust on the impulse fitting and L/ H jets.

The 69 has a main jet size 54 and the 135 has a 61. That should feed this beast pretty good I think. If it needs more I more drill it to a 70.

EDIT: correction here guys. The WJ69 has a 64 jet, not a 54. I guess I should have my eyes checked. Lol.

IMG_20190224_072955.jpg IMG_20190224_080958.jpg IMG_20190224_081005.jpg IMG_20190224_082603.jpg IMG_20190224_082616.jpg
 
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AlfA01

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I used the throttle and choke rods from the 69 but kept the plates from the 135.

The height of the impulse Barb was higher on the 135 so I swapped the 69 diaphragm cover so the impulse will line up.

IMG_20190224_085436.jpg IMG_20190224_085447.jpg IMG_20190224_085456.jpg IMG_20190224_090110.jpg IMG_20190224_092958_HHT.jpg
 

Nighthunter

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That carb was filthy, worst I seen in a while
I had an idea last night and was curious to know if it would work. I got up before everyone else and went to fetch one of the 661 carbs I had for the conversion from MT. It's a Walbro WJ135B.

With a few adjustments, I think it's going to work real nice. The WJ69 was a little sketchy. Filled with wood chips on both diaphragms and some rust on the impulse fitting and L/ H jets.

The 69 has a main jet size 54 and the 135 has a 61. That should feed this beast pretty good I think. If it needs more I more drill it to a 70.

View attachment 167315 View attachment 167316 View attachment 167317 View attachment 167318 View attachment 167319
 
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