aero3113 Posted March 23, 2011 Report Posted March 23, 2011 Does anyone know if this bolt gets the same 65-70 foot lb torque as the others? Quote
RobertKB Posted March 23, 2011 Report Posted March 23, 2011 Yes, same torque as it does the same job as the other bolts. Quote
Don Coatney Posted March 23, 2011 Report Posted March 23, 2011 Does anyone know if this bolt gets the same 65-70 foot lb torque as the others? Yes, someone knows. KB nailed it Quote
aero3113 Posted March 23, 2011 Author Report Posted March 23, 2011 Yes, same torque as it does the same job as the other bolts. Just wanted to make sure because it looks like there is less metal holding the head of the bolt on. Quote
greg g Posted March 23, 2011 Report Posted March 23, 2011 Just don't overtighten the ground strap bolt. It's a good place for a star washer between the bolt and the cable/strap. Quote
randroid Posted March 23, 2011 Report Posted March 23, 2011 aero3113, The size of the head is for a clamping surface to hold the torque against their threads and it doesn't hurt them to be hogged-out in the center. This bothered me, too, when I first saw the threaded holes in some of those on Pigiron's engine but it didn't take much research on my part to ease any doubts I had. As an aside, torque specs for a bolt are measured as 70% of their shear strength, but because head bolts are usually machined parts that are also usually heat treated they live in their own little world, which is why a hardware store bolt can't be substituted for them. -Randy Quote
aero3113 Posted March 23, 2011 Author Report Posted March 23, 2011 Thanks for the info randroid, I have it installed now Quote
aero3113 Posted March 24, 2011 Author Report Posted March 24, 2011 Just don't overtighten the ground strap bolt. It's a good place for a star washer between the bolt and the cable/strap. Yes, I did use a star washer. Quote
richards47deluxe Posted March 24, 2011 Report Posted March 24, 2011 Dang, I could have used a bolt like that. There wasn't one when I swapped heads. I'll find one somewhere. Quote
RobertKB Posted March 24, 2011 Report Posted March 24, 2011 (edited) Dang, I could have used a bolt like that. There wasn't one when I swapped heads. I'll find one somewhere. I have lots of those. PM or email if you want one.........................I just went out and counted and I have 15 so would be willing to sell a dozen as I want to keep three for myself. Edited March 24, 2011 by RobertKB Add info Quote
aero3113 Posted March 24, 2011 Author Report Posted March 24, 2011 I have lots of those. PM or email if you want one. Isn't this forum GREAT !!! Quote
Dodgeb4ya Posted March 24, 2011 Report Posted March 24, 2011 That is one beautiful H-Duty ground cable with the correct (+) polarity head bolt! Nice job! Quote
Plymouthy Adams Posted March 24, 2011 Report Posted March 24, 2011 I believe the original concept at time of manufactuer was the use of a star washer...however over time the school of thought has changed significantly..the US Navy on it Tempest bonding program and on up through NASA states this practice today as a no-no Quote
greg g Posted March 24, 2011 Report Posted March 24, 2011 Not disagreeing with Shel's points but in this case, where is the actual grounding point??? between the bottom of the ground strap and the top of the threaded bolt. the actual threads of the bolt where they contact the block, between the smaller bolt and the top of the cable, or through the front or rear motormounts. The star washer if you accept the originally stated point, would be extraneous assuming good metal to metal contact. the washer would just keep the smaller bolt from looosening. However with all the fresh paint it may in some cases actually provide part of the grounding path. But since his car starts, and runs, and charges, I guess we can rest assured he has a proper ground. any other simple things we can complicate unreasonably???? Quote
aero3113 Posted March 24, 2011 Author Report Posted March 24, 2011 I used the star washer in between the bottom of the small bolt and top of the ground cable. Not between the top of the head bolt and bottom of the ground cable. Lets try and see how we can make this simple thing become rocket science Quote
Dodgeb4ya Posted March 24, 2011 Report Posted March 24, 2011 I think the polarity changes depending on star washer being put on the top or bottom of the cable. Quote
greg g Posted March 24, 2011 Report Posted March 24, 2011 Was it a hecho in Mixico or China, that may have a bearing also, was it the right way up??? Quote
Niel Hoback Posted March 24, 2011 Report Posted March 24, 2011 If you used a metric star washer, it will change the electrons to Imperial gallons. Quote
TodFitch Posted March 24, 2011 Report Posted March 24, 2011 If you used a metric star washer, it will change the electrons to Imperial gallons. Unless you use an internal star. In that case all electrons will stop and meditate on their inner beings. The 1928-33 Master Parts Book does not call them star washers but rather "shake proof lock washers" with either internal or external teeth. Quote
Don Coatney Posted March 24, 2011 Report Posted March 24, 2011 I think you guys are drinking way too much Volt. Quote
greg g Posted March 24, 2011 Report Posted March 24, 2011 I try to stick to pickle juice or switchell. Quote
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