[Healeys] Off comes the head...Update

[David Nock British Car Specialists]

The coating is not the entire cooling system it will only be done in the bottom of the cooling system . This is a process that is done on race motors and high end exotic motors. We just did it to a 1098 Sprite cylinder head which is not available.

You put the sealer where ever you suspect the problem only. 

The block had previously been rebuilt in 2000. When it was cleaned at that time I assume the was most likely hot tanked. The cleaning process we use is a three step process. It goes thru a media blazer, then a burner and lastly a pressure washer. This process leaves the block totally bare cast iron. 

When it came out of the burners the filter had about 2  1 gallon plastic bags of material that came from this motor. Normally there is about a sandwich bag full.  This material was inside the cooling system and we are assuming the there was oil in there from the rebuild. 


David Nock
British Car Specialists
Stockton Ca 95205
209-948-8767

www.britishcarspecialists.com

Please feel free to view an interview with the Nock's in 2009
	Enjoy	
www.youtube.com/watch?v=QOTTRYkbQzs
.
.

Sent from my iPad

> On Feb 10, 2017, at 4:02 PM, Bruce Steele <healeybruce at roadrunner.com> wrote:
> 
> So, the machine shop has gone through my block and low and behold, oil is not seeping from the transverse oil gallery into the water jacket.  They pressurized the oil gallery to 70 PSI and it help pressure; nothing bleed into the water jacket.  Rather, the shop cooked out a bag full of sludge from the water jacket in the back of the block.  Apparently, the regular hot tank dipping before didn’t dislodge all this gunk, and the circulating coolant would dissolve just enough to foul the coolant with the oily mess that sure looked like fresh motor oil mixing with the coolant.  Fooled me, for sure.  For good measure, we will coat the water jacket with some epoxy, then rebuild the motor with Denis Welch pistons, street cam, bucket lifters, hollow push rods and fly wheel.  I am excited to experience how it will run with the new DW parts to go with my DW oil pump I installed years ago.
>  
> Bruce Steele
> Brea, CA
> 1960 BN7
>  
> From: Bruce Steele [mailto:healeybruce at roadrunner.com] 
> Sent: Thursday, November 24, 2016 10:15 PM
> To: 'Healey List' <healeys at autox.team.net>
> Subject: Off comes the head...
>  
> Finally diving in to diagnose and fix the oil in the coolant. Hoping it's just the head gasket, but since it started after the engine was done 11 years ago, I am suspicious that it's the oil gallery-water jacket wall between number 4 and 5 cylinders seeping high pressure oil into the coolant. Has anyone actually had or known anyone with this problem?
>  
> Bruce Steele
> Brea, CA
> 1960 BN7
>  
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