Quote:
Thanks ,Now I am 100% clear on that , I am slowly getting everything figured out .
Dave
Cool. Everyone had to start somewhere. Dave
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| Finding TDC https://slantsix.org/forum/viewtopic.php?t=29654 |
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| Author: | 00spy [ Sun Jun 22, 2008 12:44 pm ] |
| Post subject: | Finding TDC |
Today I was working on finding TDC. I was checking the marks on the pulley. I placed a long socket extension in the #1 plug hole and when it got to one mark the extension stopped moving out , and when it got to the other mark the extension stopped moving in. I marked the notch that had the extension all of the way out. Is the notch that I marked TDC? maybe a stupid question , but I want to be sure. I am glad I took my valve cover off to check because a couple of the bolts that hold down beside the rockers were lose ( I could loosen them with my hand , so I need to fix that also. Thanks for any replies Dave |
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| Author: | slantzilla [ Sun Jun 22, 2008 12:53 pm ] |
| Post subject: | |
Yes, it is TDC, but there are 2 TDC's in a 4 stroke engine. You will either be at TDC for firing or exhausting. TDC for firing is when both valves on that cylinder are closed. |
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| Author: | 00spy [ Sun Jun 22, 2008 1:02 pm ] |
| Post subject: | |
So you want both of the rocker arms all of the way down to be TDC for firing |
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| Author: | Joshie225 [ Sun Jun 22, 2008 1:10 pm ] |
| Post subject: | |
Down on the pushrod end, yes. |
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| Author: | 00spy [ Sun Jun 22, 2008 1:48 pm ] |
| Post subject: | |
So down on the push rod end means that the 2 springs should be fully extended. I have also learned when turning crank with fan belt you might want to wear some gloves (ouch!) |
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| Author: | Joshie225 [ Sun Jun 22, 2008 1:49 pm ] |
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Yep, valves up is closed. Gotta have the valves closed to make compression. |
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| Author: | 00spy [ Sun Jun 22, 2008 1:57 pm ] |
| Post subject: | |
Thanks ,Now I am 100% clear on that , I am slowly getting everything figured out . Dave |
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| Author: | slantzilla [ Sun Jun 22, 2008 2:11 pm ] |
| Post subject: | |
Quote: Thanks ,Now I am 100% clear on that , I am slowly getting everything figured out .
Cool. Everyone had to start somewhere. Dave
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| Author: | slantfin [ Sun Jun 22, 2008 2:44 pm ] |
| Post subject: | Re: Finding TDC |
Quote:
I am glad I took my valve cover off to check because a couple of the bolts that hold down beside the rockers were lose ( I could loosen them with my hand , so I need to fix that also.
Tighten the rocker pillar bolts to 25 lb/ft. You don't mean the cylinder head bolts, right?
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| Author: | Doc [ Mon Jun 23, 2008 10:32 am ] |
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You may want to check the head bolt torque and the valve lash clearances while you have the cover off. Ask if you need more info on how to do this. DD |
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