GrayMan646
Member
Nah that's about 45
Zeda 100max cnc head doesnt fit?
- Thread starter GrayMan646
- Start date
Gordy
Well-Known Member
Email Molly again and inform her that you were sent the wrong head and give her the stud spacing measurements. She should be able to get you the right one
GrayMan646
Member
Just did. Thanks a bunch, Gordy.
I knew those calipers would come in handy.
Now I still gotta get the studs evened out.
Should I just turn em down till they stop and measure height?
I don't own a torque wrench, at least not one that can take sockets.. i have a FAT wrench/driver but not an adaptor piece to take sockets
Gordy
Well-Known Member
No problem!
Torque for head bolts is 14 ft lbs or 144 inch lbs. By feel it's maybe a quarter turn past snug
I can confirm that that is the wrong head. Center to center would be the inside to inside plus one stud diameter, or 35 + 8, or 42mm, which is roughly the stud spacing of a 66cc engine. (45mm). They definitely put the wrong head in the box.
On sale for $14.99 and more than accurate enough for the purposes of these little chinese cheapo engines.
1/4 in. Drive 20-200 in. lb. Click Torque Wrench
Amazing deals on this 1/4In Dr Click Type Torque Wrench at Harbor Freight. Quality tools & low prices.
It's worth it, and it can come in handy in the future for other projects. They are accurate enough for most jobs, just make sure to unwind the handle back to 0 before storing so you don't weaken the spring mechanism, which is true for all torque wrenches of this type. I own 1/2" and 3/8" torque wrenches that cost hundreds of dollars, and still use THAT specific one for little projects all the time - especially small hardware on motorcycles, bikes, and even cars. It's always the small stuff that strips out the most, and bolts into super soft aluminum like these engines in particular.
GrayMan646
Member
I feel like this is wrong.
I can still see a gap between the head and gasket, can see the stud bolts thru that gap, I must not be tightening the head bolts evenly?
It's very sunny and hard to get a good Pic since I can barely see my screen out there
I can still see a gap between the head and gasket, can see the stud bolts thru that gap, I must not be tightening the head bolts evenly?
It's very sunny and hard to get a good Pic since I can barely see my screen out there
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Johnny_
Well-Known Member
I'm trying to remember.... I'm pretty sure mine's the same way. I know I can see light through it. Iirc it doesn't contact where the studs are, as that's not the lowest point.
That's normal. The heads have a raised ring of material closest to the bore that is supposed to help with sealing by creating more sealing pressure (Force applied to a smaller area). I usually use a mirror or glass table with some sand paper to level and polish the head surface and I also do the same to the top of the jug. I like to finish both with at least a 400 grit. This helps a lot more with sealing using metal head gaskets.
