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Old 07-21-2015, 08:26 PM   #241
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<p>I cannot turn the motor over all the way by hand. I can spin it in reverse at that point, then the same thing happens. Rod hitting the block?</p><p>&nbsp;</p><p>Motor is on the engine stand. I'll pull the pan and head on Friday and we'll finally know.</p>
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Old 07-21-2015, 10:37 PM   #242
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Bummer but a good thing that you cranked it by hand, did it turn ok before and after you put the timing belt on?
It must be a crank scraper a stray part in one cylinder or bad timing belt instalation?
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Old 07-21-2015, 11:00 PM   #243
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<p>
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Originally Posted by HHammerly View Post
Bummer but a good thing that you cranked it by hand, did it turn ok before and after you put the timing belt on? It must be a crank scraper a stray part in one cylinder or bad timing belt instalation?
</p><p>&nbsp;</p><p>Sorry for the confusion, rereading it now I wasn't very clear. This is the blown motor. My guess is a bent rod hitting the block.</p>
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Old 07-21-2015, 11:05 PM   #244
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Oh that is great news
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Old 07-24-2015, 11:47 PM   #245
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<p>Alrighty ladies and gentleman. I didn't fix these pictures, so you'll have to click them or whatever so they aren't huge. Took them with my 7d.&nbsp;</p><p>Rods 1-4. 4 is FUCKED, but it wasn't the one with bad compression. Also with 4, the crank seems to have hit the block. I've included pictures of that as well.</p><p><img src="http://cimg3.ibsrv.net/gimg/www.miataturbo.net-vbulletin/2000x1333/80-img_0445_6cd56dcb48155eab9e149e0ce9774feed6a0f9e1. jpg" title="" /><br /><br /><img src="https://cimg4.ibsrv.net/gimg/www.miataturbo.net-vbulletin/2000x1333/80-img_0446_67f0a8f2e653e1ea4bc7ae685580db17acf10d65. jpg" title="" /><br /><br /><img src="http://cimg9.ibsrv.net/gimg/www.miataturbo.net-vbulletin/2000x1333/80-img_0444_03e0d8a26ab5d828c51b308e7a190e6317b6acd0. jpg" title="" /><br /><br /><img src="https://cimg4.ibsrv.net/gimg/www.miataturbo.net-vbulletin/2000x1333/80-img_0443_87168fa4fe851b960de9f5c494a093266d247ee4. jpg" title="" /><br /><br /><img src="http://cimg6.ibsrv.net/gimg/www.miataturbo.net-vbulletin/2000x1333/80-img_0437_7c64ae7d6c9efe49adb8183ecf6c6a3b46cac6c1. jpg" title="" /><br /><br /><img src="http://cimg8.ibsrv.net/gimg/www.miataturbo.net-vbulletin/2000x1333/80-img_0441_6a893f70a049f3af693933b6d6a4177934e8bc60. jpg" title="" /><br /><br />&nbsp;</p>
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Old 07-25-2015, 12:56 AM   #246
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<p>Are those the redhorse fittings we talked about?</p>
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Old 07-25-2015, 12:57 AM   #247
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<p>Also, holy carnage batman. That is awesome.</p>
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Old 07-25-2015, 01:16 AM   #248
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Looks like the crank hit piston 4 due to the rod being shorter, moving the piston closer to the crankshaft throw.
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Old 07-25-2015, 03:28 AM   #249
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^ what Pat said.
<br />
<br />Schuyler, would you please elaborate on your fuel plans and document it really well? For some reason I can't quite wrap my head around the whole return-conversion, but I need to do it in a few weeks.
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<br />Thanks!
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Old 07-25-2015, 10:59 AM   #250
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<p>Any signs of Detonation or pre-ignition? Wondering if #4 got hot and detonated. Seems coincidental that this is yet another #4 failure.</p><p>Head look fine to go on the new block?</p>
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Old 07-25-2015, 07:19 PM   #251
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<p>
Quote:
Originally Posted by aidandj View Post
</p><p>Are those the redhorse fittings we talked about?</p><p>
</p><p>Negative. All my fuel fittings so far are Russell</p><p>
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Originally Posted by turbofan View Post
^ what Pat said. Schuyler, would you please elaborate on your fuel plans and document it really well? For some reason I can't quite wrap my head around the whole return-conversion, but I need to do it in a few weeks. Thanks!
</p><p>Sure can. I'll add pictures and diagrams once it is actually installed (and I've verified it works)</p><p>
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</p><p>Any signs of Detonation or pre-ignition? Wondering if #4 got hot and detonated. Seems coincidental that this is yet another #4 failure.</p><p>Head look fine to go on the new block?</p><p>
</p><p>No signs of detonation. Head looks fine.</p>
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Old 07-25-2015, 07:26 PM   #252
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Quote:
Originally Posted by Schuyler View Post
...<p>No signs of detonation. Head looks fine.</p>
If you have it or can buy one, get a 10x magnification lense ( I use a cheap jewelr's loupe) and look at the spark plugs with it in good lighting. I did this and what looked "fine" is actually detonating, as was evident by the black specs and-more obvious- little ***** of aluminum stuck to the ceramic. These were ov course invisible with the naked eye, but showed up with good lighting and a 9x magnification.

I HIGHLY recommend you do this so you know for sure if it was knocking, or at least do it on your new motor to be sure it's not knocking. Very cheap and accurate way to tell if it was knocking.
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Old 07-25-2015, 07:27 PM   #253
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<p>OK Hurry up :P thanks.</p>
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Old 07-25-2015, 09:35 PM   #254
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<p>
Quote:
Originally Posted by turbofan View Post
</p><p>OK Hurry up :P thanks.</p><p>
</p><p>Will do :P</p><p>But in the mean time, Flounder has a pretty good guide as well.</p><p>Converting NB to return fuel style</p>
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Old 08-05-2015, 05:25 PM   #255
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<p>So I think the plan is going to be to run wastegate pressure and&nbsp;get it tuned on e85 without really adding any timing. Then run 10psi, tune, find peak torque. Increase boost with to flatten the curve. I'd prefer not to bend any more rods.</p><p>Any comments?</p>
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Old 08-05-2015, 05:26 PM   #256
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<p>I say get on a dyno before turning up the boost. Didn't you up the compression with the new block? Or lower it because automatic.</p>
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Old 08-05-2015, 06:03 PM   #257
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<p>
Quote:
Originally Posted by aidandj View Post
</p><p>I say get on a dyno before turning up the boost. Didn't you up the compression with the new block? Or lower it because automatic.</p><p>
</p><p>Increased. 9.5:1 -&gt; 10:1</p>
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Old 08-05-2015, 06:17 PM   #258
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<p>Get on a dyno before you crank boost. My&nbsp;<img alt="2 cents" src="http://www.miataturbo.net/images/smilies/sign0134.gif" style="height:15px; width:23px" title="2 cents" /></p>
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Old 08-12-2015, 08:03 PM   #259
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<p>Woodruff key on the new motor is broken. Stuck in sprocket.</p><p>&nbsp;</p><p>Stripped one of the 8mm 8 point bolts that hold the baffle down in the pan. So that is gunna suck too.</p>
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Old 08-12-2015, 08:29 PM   #260
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Hope you called it a night. No need to break more.
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