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Posted: Mon Sep 10, 12 11:31 am
by Turnip
[quote="Cannonball
and we are all dying to know how fast did it go begore bang, ???[/quote]
I had a gentle launch at 2000rpm and ran 9.8 @ 138mph, it was a bit down at 135 when it went.
Posted: Mon Sep 10, 12 11:36 am
by Cannonball
Turnip wrote:[quote="Cannonball
and we are all dying to know how fast did it go begore bang, ???
I had a gentle launch at 2000rpm and ran 9.8 @ 138mph, it was a bit down at 135 when it went.[/quote]
so how many runs before it died jon ???
Posted: Mon Sep 10, 12 11:57 am
by Turnip
I think it was 8 all 10.0 to 9.8
Posted: Mon Sep 10, 12 12:23 pm
by Ivor
So sorry to hear this Jon, I was expecting to wind Les up about Nos and the extoll the virtues and reliability of mechanical power adders compared to "cheating" with gas.
I think I might have to get me coat...
Posted: Mon Sep 10, 12 12:58 pm
by NaughtyAlan
Gutted for you Jon. Where did the short motor come from? what crank etc.
Looks like no 3n 6 journal, was getting no oil at all
Posted: Mon Sep 10, 12 1:16 pm
by Turnip
Ivor it would have been more of a mess if I had put gas through it
Alan the crank was from Hughes, I can't remember of hand exactly which one, the rods are Callies CompStar and ceramic coated pistons.
The part of the block that a lot of pepole told me would break seems to be the only part not damaged
Posted: Mon Sep 10, 12 6:05 pm
by Les Szabo
Ivor wrote:So sorry to hear this Jon, I was expecting to wind Les up about Nos and the extoll the virtues and reliability of mechanical power adders compared to "cheating" with gas.
I think I might have to get me coat...
Thats a possibility Ivor
Jon was that a "cross drilled"crank?
Posted: Mon Sep 10, 12 8:26 pm
by Turnip
Sorry Les I don't know, that is out of my technical knowledge
Posted: Thu Sep 13, 12 12:52 am
by NaughtyAlan
Obviously not a good day Turnip
, who built the engine? , this sort of carnage should not happen had the engine been built to a decent standard
, something went badly amiss when this engine went together , not trying to be the grim reaper but truth sometimes hurts , sorry.
Aka Brutus.
Posted: Thu Sep 13, 12 12:54 am
by NaughtyAlan
Les Szabo wrote:
Jon was that a "cross drilled"crank?
Cross drilled cranks are carnage waiting to happen.
Posted: Thu Sep 13, 12 7:55 am
by Turnip
NaughtyAlan wrote:Obviously not a good day Turnip
, who built the engine? , this sort of carnage should not happen had the engine been built to a decent standard
, something went badly amiss when this engine went together , not trying to be the grim reaper but truth sometimes hurts , sorry.
Aka Brutus.
It looks really odd. It was put together by Dave Milam, he was on the phone first thing Monday morning after he had heard about it. He wants to try and work it out as much as we do. Just need to pull it out and get it over to him.
Posted: Thu Sep 13, 12 1:07 pm
by NaughtyAlan
Can you give us a heads up on the oiling system? , #4 cam bearing fully grooved? , standard oiling to heads or oiling via gallery/spraybars?
Sorry for the carnage.
Aka Brutus.
Posted: Thu Sep 13, 12 1:23 pm
by Turnip
Single pick up external oiling, heads standard oiling. everything has plenty of oil except the big ends on no6 and no3. No5 and 4 big ends look fine.
Posted: Thu Sep 13, 12 6:58 pm
by Les Szabo
Take a piece of coat hanger or similar, Bananarama! through the oil hole in the Main bearing, if it comes out the other side its a cross drilled crank.
These cranks can be ok but require a lot of oil pressure to overcome the neg effects of centifugal forces caused which pull oil away from the rod bearings. High oil pressure has its own problems.
It is imperitive that your man checked all the oil holes in the crank for any blockages and or holes not fully drilled far enough before installation.
Just something to consider.
Les
Posted: Sun Sep 23, 12 4:07 pm
by Pete
Any more news from the Autopsy, Jon?
When will you be able to get out next? Have you got a "cooking" motor you can use in thr interim?