Subject	Although this makes sense to me, so
Posted by	ILoveBoost on February 18, 2016 at 8:41 AM
	This message has been viewed 504 times.
In Reply To	PSA RE: Head Washer Size / Head gasket Failure posted by Greg D. (Specialty-Z) on February 17, 2016 at 02:50 PM
Message	the heads lifted again the second time. I would have expected to see the indention would be the size of the larger washer and not the smaller washer still. This would be due to the fact that the surface contact area would be the difference between the 2 different size washers, if that surface area didn't hold, the larger washer should have sunk into the head also, much like the smaller one did. Correct?
Follow Ups	PSA RE: Head Washer Size / Head gasket Failure - Greg D. (Specialty-Z) 14:50:42 02/17/16 Re: PSA RE: Head Washer Size / Head gasket Failure - Bad Fish 15:09:15 02/17/16 Re: Re: PSA RE: Head Washer Size / Head gasket Failure - Greg D. (Specialty-Z) 15:38:11 02/17/16 wow (n/m) - LJZTT 15:59:46 02/17/16 2nd. (n/m) - spicyZ 08:41:29 02/18/16 yeesh! that's ugly. (n/m) - Dallas DamonZ 16:07:39 02/17/16 Great find Greg, I would like to add... - Red Hawk (CO) 16:11:49 02/17/16 Yikes! Thanks for the post. Glad I switched to stock - MixManMash 17:05:30 02/17/16 Glad I used Z1's upgraded washers on both my engines. - ForceFedTT (SoCal) 20:27:13 02/17/16 Interesting - Ashman2k2 14:00:25 02/19/16 EP Racing posted this a few years ago (n/m) - toykoz32 21:06:11 02/17/16 Although this makes sense to me, so - ILoveBoost 08:41:34 02/18/16 Thank You for the knowledge sir!!!!! (n/m) - NUTTZ(EPTmotorsports) 10:09:53 02/18/16 Re: Although this makes sense to me, so - Placuch 14:21:47 02/18/16 The washers were stacked. - ILoveBoost 15:11:32 02/18/16 Where do you read the washer are stacked?? (n/m) - itsa300zx 16:10:52 02/18/16 I worked on the car after the first HG let go, - ILoveBoost 16:56:21 02/18/16 Someone would have to do some analysis on the metal. - Red Hawk (CO) 17:21:20 02/18/16 Have dimensions? - BlackholeZ 12:49:44 02/19/16 I do have a spare set of z1 washers, no small arp ones tho - Red Hawk (CO) 15:33:31 02/19/16 What is the OD of the Z1 washers? How much larger than OEM? (n/m) - ZXoltan 15:39:39 02/19/16 We have similar issues on MR2s. - dogpile 13:55:09 02/18/16 Similar issues on Miata as well. (n/m) - ztunerz 23:40:06 02/18/16 Curious if you have any data on the required torque to - Ashman2k2 13:38:20 02/19/16 Why would washer OD affect preload? - ZXoltan 15:38:45 02/19/16 Torque is torque. Washer size just spreads the force - BlackholeZ 23:27:31 02/19/16 I'm pretty sure that Ash is talking about.... - tiale11 06:54:15 02/20/16 Correct. Using the matching flange nut to larger OD washer - Ashman2k2 22:36:48 02/20/16
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