I now know what it sounds like when pistons hit valves.
03-17-2003, 07:06 PM
#21
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Re: I now know what it sounds like when pistons hit valves. </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by wm_sorg:
<strong> Sorry to hear that happened. You mentioned claying the engine. Can you describe that procedure? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Basically this means literally putting a 1/2" or so layer of clay(the stuff kids play with works fine)on the top of a piston. The gasket is placed on the block and then the head put on and is torqued down. Then the motor is turned over by hand (using a big wrench and socket on the crank pulley bolt will work)Note: the spark plugs should not be in the heads or you will be fighting against the cylinder compression.
The head is then removed so that the valve impressions, in the clay, can be seen and the distance to the piston verified with a micrometer.
<strong> Sorry to hear that happened. You mentioned claying the engine. Can you describe that procedure? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Basically this means literally putting a 1/2" or so layer of clay(the stuff kids play with works fine)on the top of a piston. The gasket is placed on the block and then the head put on and is torqued down. Then the motor is turned over by hand (using a big wrench and socket on the crank pulley bolt will work)Note: the spark plugs should not be in the heads or you will be fighting against the cylinder compression.
The head is then removed so that the valve impressions, in the clay, can be seen and the distance to the piston verified with a micrometer.
03-17-2003, 07:26 PM
#22
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Re: I now know what it sounds like when pistons hit valves. put alittle motor oil on the clay so the valves do not stick to it... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
03-17-2003, 09:20 PM
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Re: I now know what it sounds like when pistons hit valves. </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Brian98:
<strong> put alittle motor oil on the clay so the valves do not stick to it... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">True! Thank you.
<strong> put alittle motor oil on the clay so the valves do not stick to it... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">True! Thank you.
03-17-2003, 09:59 PM
#24
Re: I now know what it sounds like when pistons hit valves. <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> man that sucks, I hope you get it fixed pretty fast. Glad to hear that the pistons don't look too bad. Hopefully the valves aren't bent to ****.
Good luck for the rest of the project
J <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Good luck for the rest of the project
J <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
03-17-2003, 11:30 PM
#25
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Re: I now know what it sounds like when pistons hit valves. </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Visceral:
<strong>
Then the engine runs like complete poopie.
chris </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Finally, someone comes through with an accurate technical analysis of the situation... LOL, <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Hope you get back up and running soon.
<strong>
Then the engine runs like complete poopie.
chris </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Finally, someone comes through with an accurate technical analysis of the situation... LOL, <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Hope you get back up and running soon.
03-18-2003, 12:36 AM
#26
Re: I now know what it sounds like when pistons hit valves. I did actually try and get a sound clip of it, but it didn't work out.
I sounded alot like the Keebler elves were in the block hitting it with ballpeen hammers.
MY emotional path looked something like this:
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> <img border="0" alt="[cry]" title="" src="graemlins/gr_cry.gif" /> <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
AZLS1 -This is one of the funniest posts I've ever read! Glad you still have a sense of humor. Sorry to hear about the dissimilar metals collision. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
I sounded alot like the Keebler elves were in the block hitting it with ballpeen hammers.
MY emotional path looked something like this:
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> <img border="0" alt="[cry]" title="" src="graemlins/gr_cry.gif" /> <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
AZLS1 -This is one of the funniest posts I've ever read! Glad you still have a sense of humor. Sorry to hear about the dissimilar metals collision. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
03-18-2003, 12:41 AM
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Re: I now know what it sounds like when pistons hit valves. ...what about clearance on a SDPC LS6 head milled .055 with stock size valves and a TR 227/224 reverse split cam with 560 lift?
...would this be an issue with stock gaskets?
...would this be an issue with stock gaskets?
03-18-2003, 12:47 AM
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Re: I now know what it sounds like when pistons hit valves. </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by AZLS1:
<strong> Thank you for the support everybody.
I did actually try and get a sound clip of it, but it didn't work out.
I sounded alot like the Keebler elves were in the block hitting it with ballpeen hammers.
MY emotional path looked something like this:
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> <img border="0" alt="[cry]" title="" src="graemlins/gr_cry.gif" /> <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" /> <img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Sorry about your problems. The above had me ROTFLMAO!
John
<strong> Thank you for the support everybody.
I did actually try and get a sound clip of it, but it didn't work out.
I sounded alot like the Keebler elves were in the block hitting it with ballpeen hammers.
MY emotional path looked something like this:
<img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> <img border="0" title="" alt="[Frown]" src="gr_sad.gif" /> <img border="0" alt="[cry]" title="" src="graemlins/gr_cry.gif" /> <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" /> <img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Sorry about your problems. The above had me ROTFLMAO!
John
03-18-2003, 12:53 AM
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Re: I now know what it sounds like when pistons hit valves. Update from Sterling:
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> I pulled the head tonight and it didn't look too bad.
I have a few pretty small marks on only some of the pistons. The valves do not appear to be damaged at all, I need to remove the springs and see if the valve shafts are bent. Thje valve faces look fine.
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Definately good news <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> I pulled the head tonight and it didn't look too bad.
I have a few pretty small marks on only some of the pistons. The valves do not appear to be damaged at all, I need to remove the springs and see if the valve shafts are bent. Thje valve faces look fine.
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Definately good news <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
03-18-2003, 05:12 PM
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Re: I now know what it sounds like when pistons hit valves. Cant you just turn the motor a few times with the heads torqued down? If if turns without stopping, then you have no P/V problems. Is this correct to assume?
<small>[ March 18, 2003, 05:13 PM: Message edited by: black00WS6 ]</small>
<small>[ March 18, 2003, 05:13 PM: Message edited by: black00WS6 ]</small>
03-18-2003, 06:39 PM
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Re: I now know what it sounds like when pistons hit valves. </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by black00WS6:
<strong> Cant you just turn the motor a few times with the heads torqued down? If if turns without stopping, then you have no P/V problems. Is this correct to assume? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Could but you have to remember the motor will be going at high speeds so the parts will stretch, also when they are hot, so they will go even farther than when you are just turning it by hand. I dont know what the tolerences on the spacing is those. If anyone knows please enlighten us.
<strong> Cant you just turn the motor a few times with the heads torqued down? If if turns without stopping, then you have no P/V problems. Is this correct to assume? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Could but you have to remember the motor will be going at high speeds so the parts will stretch, also when they are hot, so they will go even farther than when you are just turning it by hand. I dont know what the tolerences on the spacing is those. If anyone knows please enlighten us.
