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Oil leaking
by: ramblinman - May 14, 2015 19:50:03 GMT -5
Post by ramblinman on May 14, 2015 19:50:03 GMT -5
yeah, i believe you are right. i posted before i saw you correct the engine code I'm pretty sure he would be fine with the head I posted . do u know if he had a 2 or 4 bolt valve cover ? 2 The valve cover on this unit is held on with two bolts that go through the cover into the top of the head. They have a flange on them that allows you to only tighten the valve cover so tight. |
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Oil leaking
by: geh3333 - May 14, 2015 19:54:55 GMT -5
via mobile
Post by geh3333 on May 14, 2015 19:54:55 GMT -5
I'm pretty sure he would be fine with the head I posted . do u know if he had a 2 or 4 bolt valve cover ? 2 The valve cover on this unit is held on with two bolts that go through the cover into the top of the head. They have a flange on them that allows you to only tighten the valve cover so tight. If one of these heads will fit , i would buy one and buy the more popular 4 bolt cover . I'm not sure if he would have to change anything else ? Like the cam , etc. He also might have to go with ,63mm head if its a B case. |
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Oil leaking
by: ramblinman - May 14, 2015 19:58:24 GMT -5
Post by ramblinman on May 14, 2015 19:58:24 GMT -5
If one of these heads will fit , i would buy one and buy the more popular 4 bolt cover . I'm not sure if he would have to change anything else ? Like the cam , etc. He also might have to go with ,63mm head if its a B case. i would assume the A means a case engine.  |
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Oil leaking
by: geh3333 - May 14, 2015 20:06:56 GMT -5
via mobile
Post by geh3333 on May 14, 2015 20:06:56 GMT -5
If one of these heads will fit , i would buy one and buy the more popular 4 bolt cover . I'm not sure if he would have to change anything else ? Like the cam , etc. He also might have to go with ,63mm head if its a B case. i would assume the A means a case engine. Yeh , so if it is an A case then he should be able to buy the 61mm head and the 4 bolt valve cover . I would think ? |
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Post by ghcoe on May 14, 2015 21:29:00 GMT -5
Yes! Sorry. Just rechecked the code it is a Q instead of a 0, 161Q-A. Two bolts through the valve cover to hold it on. A small hose outlet on the top of the valve cover and a EGR port on the head.
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Post by ghcoe on Jun 21, 2015 16:55:00 GMT -5
With more reading it looks like what I mistaken as a EGR line is actually a PAIR line. Going to go ahead and order the GY6-200 head that has that blocked off and run it.
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Oil leaking
by: rcq92130 - Jun 21, 2015 19:38:02 GMT -5
Post by rcq92130 on Jun 21, 2015 19:38:02 GMT -5
With more reading it looks like what I mistaken as a EGR line is actually a PAIR line. Going to go ahead and order the GY6-200 head that has that blocked off and run it. If you are interesred, I have an extra 61mm head - used about 500 miles, but as near to new as you can get. It's with high RPM springs, etc .... this is the one I have: www.ebay.com/itm/SCOOTER-150CC-GY6-RACING-HIGH-PERFORMANCE-TAIWAN-61MM-CYLINDER-HEAD-BIG-PORT-/191598223845?hash=item2c9c24e1e5Last year I got the BBK that included this head. Unfortunately, put the piston in wrong and scored the jug (no effect at all on the head). before tearing the thing down I ordered a second BBK just to be sure i had anything I might need. Didn't need the head, so I have this extra one. PM me if interesred |
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Post by ghcoe on Jun 21, 2015 21:46:25 GMT -5
With more reading it looks like what I mistaken as a EGR line is actually a PAIR line. Going to go ahead and order the GY6-200 head that has that blocked off and run it. If you are interesred, I have an extra 61mm head - used about 500 miles, but as near to new as you can get. It's with high RPM springs, etc .... this is the one I have: www.ebay.com/itm/SCOOTER-150CC-GY6-RACING-HIGH-PERFORMANCE-TAIWAN-61MM-CYLINDER-HEAD-BIG-PORT-/191598223845?hash=item2c9c24e1e5Last year I got the BBK that included this head. Unfortunately, put the piston in wrong and scored the jug (no effect at all on the head). before tearing the thing down I ordered a second BBK just to be sure i had anything I might need. Didn't need the head, so I have this extra one. PM me if interesred Thanks for the offer, but it is the wrong head. The head we are working with has two valve cover bolts that screw into the top of the head rather than around the edges. |
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Oil leaking
by: geh3333 - Jun 21, 2015 22:52:42 GMT -5
via mobile
Post by geh3333 on Jun 21, 2015 22:52:42 GMT -5
Can't you still use that head and just get a 4 bolt valve cover ?
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Post by ghcoe on Jun 22, 2015 20:40:18 GMT -5
Can't you still use that head and just get a 4 bolt valve cover ? Not sure. I know that the fan shroud would have to be modified if I use a different head. Also, the gasket kit seemed to be for the G6-200 specific. |
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Oil leaking
by: geh3333 - Jun 22, 2015 23:48:59 GMT -5
via mobile
Post by geh3333 on Jun 22, 2015 23:48:59 GMT -5
Can't you still use that head and just get a 4 bolt valve cover ? Not sure. I know that the fan shroud would have to be modified if I use a different head. Also, the gasket kit seemed to be for the G6-200 specific. I had to slightly modify my cooling shroud when I installed the ncy head . it had the egr port molded into the cast . it was not open , but the cast stuck out and hit the shroud. |
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Post by ghcoe on Jun 27, 2015 11:54:52 GMT -5
I was taking the engine apart to get ready for the new head and found this. That is a cam sprocket bolt. Both cam sprockets bolts were present in their correct positions so I figure that this one dropped during production. Thinking that bolt fell onto the floor instead of into the cam assembly they just grabbed another bolt out of the bin and sent it on is way. It would have been pretty hard for that bolt to find its way behind the cam since the cam assembly has to be installed before the cam sprocket can be attached. What are the odds.....
It also took out the cam. 
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Post by ghcoe on Jun 27, 2015 12:38:29 GMT -5
Well more issues now. Looking to find a replacement cam and all the cams I am finding have a pressed on gear. This cam has a bolt on gear and it needs to be removed so that you can remove the C clip that holds the cam into the cam housing. Any ideas on where to find one? If we can not find one we may have to run this one until we can. The good thing about this design is that the cam can be replaced without loosing the head bolts.
Thanks, George.
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Oil leaking
by: geh3333 - Jun 28, 2015 23:31:52 GMT -5
via mobile
Post by geh3333 on Jun 28, 2015 23:31:52 GMT -5
I was taking the engine apart to get ready for the new head and found this. That is a cam sprocket bolt. Both cam sprockets bolts were present in their correct positions so I figure that this one dropped during production. Thinking that bolt fell onto the floor instead of into the cam assembly they just grabbed another bolt out of the bin and sent it on is way. It would have been pretty hard for that bolt to find its way behind the cam since the cam assembly has to be installed before the cam sprocket can be attached. What are the odds.....
It also took out the cam.
Wait , did the head come with the cam and rockers installed ? Where did it come from ? |
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Post by ghcoe on Jun 29, 2015 5:51:55 GMT -5
No. The new head is just the head and valves. The pictures just show the damage that I found once I took apart the engine. The picture with the cam also shows the cam assembly that this engine has. The rockers are on the other side.
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