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Author Topic: Engine coatings anyone?  (Read 1266 times)
glhdcne
6 Banger
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Location: Eastern Nebraska

« on: March 12, 2017, 05:20:23 pm »

  I've posted before about the circle track race class (B Modified) we compete in,rules are intended to keep costs down but usually result in spending more.
  Rules do not allow full roller rockers,only roller tip ball and seat old style allowed,that means Comp Magnums and they are good but over stressed at 7200 rpm levels.
  The rockers on cyl.1,2,3,4,7,8 look decent but cyl. 5&6 are at the end of the lifter galley and show considerable heating.We run an aux. supply pipe to the galley between cyl. 5&6 from the oil cross over at the back of the block which helps.
  Techline Coatings sells a product called cermalube,it is a water based spray on,bake on ceramic coating that is advertised to withstand severe heat,friction,etc.
  Anybody know of it ,tried it? I would like to try it but they are very choosy about who they sell it to and I can't get ahold of it.    Thank You
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289nate
"IL BUONO"
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Location: Los Angeles

« Reply #1 on: March 13, 2017, 02:10:07 am »

I have not tried that product.  But I do use the Techline Black Satin exhaust coating that I applied on my headers with good results.  The brand is legitimate in my experience with the one product in their line.
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\'65 fastback pump gas 289, 4.56 gears, and faceplated T5.  11.123 at 122.4
BirdMan
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Location: Topeka, KS

« Reply #2 on: March 19, 2017, 05:15:39 am »

You might remove the end oil galley plugs, insert the cam and a lifter at each end of both galleys to check the oil band in letting oil through!  I had this problem on 302's mainly Mexican blocks as their oil galley's are 3/8" not the 7/16" normally, or at least mine are.

I modified the CC 838 lifters by sanding/grinding a 45* chamfer on both sides and oil glides down to all of them and through rockers all the same flow out rocker holes.

CC came out with their modified 838's which looked like mine but not quite as big of a chamfer.  Mine was .200 up from waist.  I did this after wasting several rockers and finally diagnosed after years of limited lifter/rocker arm problems and lifters were wearing/scoring quicker than than I thought they should have and now the lifter wear is a bunch better.  This is/was on the 8.2 deck engines.  I have never run a stock block 9.5.

The pictures show the chamfering on used/old ones.  New ones I masked off .200 up and every thing except area to grind.


* 45 degrees.jpg (75.35 KB, 680x510 - viewed 37 times.)

* Roller Lifter Rework.JPG (26.09 KB, 480x360 - viewed 39 times.)

* Roller Lifter Comparison.jpg (28.98 KB, 480x360 - viewed 33 times.)

* PICT0004.JPG (733.3 KB, 1280x960 - viewed 38 times.)

* taped side.jpg (81.44 KB, 680x510 - viewed 36 times.)
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glhdcne
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Location: Eastern Nebraska

« Reply #3 on: March 19, 2017, 12:43:59 pm »

  Thanks for the suggestions but we are required to run mechanical flat tappets.Don't know that any modification to the lifter body would be feasible.
  I do think our main problem is the end of the line oil flow being greatly reduced due to the 5&6 cyl. being at the end of the lifter oil galley. These ball-seat rockers evidently need a lot of oil,we've used the grooved rocker balls but have also tried the non grooved balls with slightly better results.Also are using the oil deflector plates mounted above the rockers,they have some benefit.
  I've wondered if the momentum of the constant very hard left hand turning of a circle track car is causing the oil being deflected away from the left side rockers,the right side rockers look good but would there location result in more oil ending up where it needs to be.
  If anybody has access to the cermalube product mentioned earlier I would be happy to cut a deal with you just to try it.    Thank You
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BirdMan
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« Reply #4 on: March 19, 2017, 01:55:12 pm »

If you got my email there are some mods to do at the front of the block oil galleys to get more flow to the mains and lifters.  At the rear oil galleys you could radius the inside upper corner to help with flow maybe a bit and at the top of the inverted V between galleys greatly smooth/round before installing the freezeplug up there.  Polish these like the filter boss and polish into oil pump corner after radiusing the inner corner for improved oil flow, maybe increase the size of it.

Both lifter oil galleys feed from the back, the left one from the invert V at rear coming from right oil galley/main feed galley.

Maybe enlarge the main galley front to back and install 9/16" bolt plugs, homemade? or 3/8" pipe plugs?


* Block Oil Pump Galley.JPG (76.18 KB, 640x480 - viewed 33 times.)

* Front 2 mains.jpg (80.36 KB, 640x480 - viewed 39 times.)

* Front 2 Mains plugs in.jpg (75.3 KB, 640x480 - viewed 36 times.)

* Oil Filter Boss.JPG (74.1 KB, 640x480 - viewed 40 times.)
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BirdMan
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« Reply #5 on: March 19, 2017, 02:07:08 pm »

Maybe some new lifters with smaller waists/oil bands to flow more oil especially to the front lifters??
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BirdMan
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« Reply #6 on: March 19, 2017, 05:13:42 pm »

Can you run an external oil line to the left valve cover for individual sprayers?
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