VincentHill
Needs a life
Posts: 6520
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posted September 24, 2006 04:22 PM
It may not be a "Mechanical" Problem!
I just took a few things apart and did a Careful Compression Check. (Remember I have very Low Compression at about 10.3 to 1
Cold the engine made 150 PSI each Cylinder and maybe 1 PSI Difference between "ALL" of the Cylinders.
Then I Squirted 2 Squirts of 10 W 40 Oil into each cylinder and spun the engine over for about 2 seconds. ALL 4 Cylinders read the Correct PSI of 180 which is what I set them at to begin with. (Also what it reads after I have run the engine and turn it off.
If it was a Valve Problem the compression would not have been the same in all cylinders and Oil would not have raised it. If I blew a Piston or ring, one cylinder would be higher than the others. If I had pushed a Gasket then one cylinder should read different thsn the others.
The Plugs were loaded up fairly well so I cleaned them and pulled out another set of plugs.
I have everything out of the way so does anyone think I should pull the HEAD?
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Made History @ Daytona and still one fast old man!!
  
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slug
Pro
Out in search of my mind...
Posts: 1433
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posted September 24, 2006 06:15 PM
if compression is good and hte same all the way across, i would do a bore-scope exam through plug hole and call it good if there is nothing amiss inside.
the next Q becomes what on earth caused it to quit running right? possible fuel delivery problem?
How's the family doing? getting better? Hope all is well on that front.
   
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entropy
Moderator
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posted September 25, 2006 02:12 AM
Vince,
did you do a leakdown?
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This moderator uses moderation in moderation
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VincentHill
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posted September 25, 2006 04:38 AM
It NEVER Stopped running ever! It went POW and it took a second to digest the large dose of NOS and continued running! I did a few more pulls without NOS and it had lost about 5 to 8 HP from what it had before the POW!!..
I would "Love" to take a Bore Scope and take a look but those things cost $400+.
I did not do a Leak Down But thinking over night I plan to pull the valve cover and look at the cam chain and see if it is tight (Manual Adjustor) and see if it is all still in time and see if anything looks admist in the valve area.
I may pull the head anyway because I only have the HD Springs in the intake side and may put them all the way around on the exhaust side. Then I can see everything!
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Made History @ Daytona and still one fast old man!!
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TRNorBRN6001
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Posts: 2021
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posted September 25, 2006 11:55 AM
Hope everything turns out OK. The 5-8HP down might have just been from the heat left in the motor, especially after that heavy hand of juice.
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TFA 200MPH CLUB MEMBER!
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VincentHill
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posted September 25, 2006 12:21 PM
It was Truly Angry with me!Horrible Back fire blew the A/F Tube off of the Machine. I think I will do a leak down first and see if anyone has a guage to see what is going on inside other than a ENT Doctor 
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VincentHill
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posted September 25, 2006 12:52 PM
Found a Flexible Bore Scope for $200 plus $8 for shipping from a Warehouse about 30 miles away! (18 inches long and under 6 MM in diameter) do it will fit the Spark plug hole.
Never thought I would own one of these things but the price of a Head Gasket and one full day of TIme and I spent the money!
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GUNNER
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posted September 25, 2006 01:18 PM
Vince not that you're asking me at all, but if the motor is out I would pull the head in a New York Minute. If you don't and it don't make power like it did you'll always kick yourself in the ass. My most educated guess will be a crushed top ring land. Best I remember you have your rings moved down to try and avoid some of these problems but they still happen from time to time under huge cyclinder pressures from backfires like you had. Just my best guess Sir.
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VincentHill
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posted September 25, 2006 04:02 PM
The engine is not out but ready to come out! I plan to do the Leak Down and take a look! If I see anything it will come apart if I see nothing It may still come apart but I will have a better idea of why I need to take it apart.
I want to test the Bore Scope I am buying to see it it is worth anything! There will be no SHort Cuts!
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Made History @ Daytona and still one fast old man!!
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GUNNER
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posted September 25, 2006 04:38 PM
quote:
There will be no SHort Cuts!
I never thought for a minute that there would be any with you Vince  NOT your style
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blitzkrieg
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Road kill = Free lunch.
Posts: 2044
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posted September 25, 2006 05:42 PM
I don't even for a second consider WD-40 a suitable leakdown "oil".
Am I missing something?
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"BTW....You need to get a girlfriend who's last name isn't .jpg"
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osti33
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posted September 25, 2006 06:22 PM
 Edited By: osti33 on 25 Sep 2006 19:24
quote:
I don't even for a second consider WD-40 a suitable leakdown "oil".
Am I missing something?
Where do you see any mention of WD-40??
Vince said he used a couple of squits of 10W-40.
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aliveagain
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posted September 25, 2006 07:06 PM
When I did my compression test,a squirt of oil brought it up10-15 psi and that was with the bad piston.Horsepower is missing for a reason.
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I wondered why the baseball kept getting bigger. Then it hit me.
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GUNNER
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posted September 25, 2006 07:38 PM
Edited By: GUNNER on 25 Sep 2006 20:39
Damn I didn't put anything in my 10R when I checked it and it still had 210  I better move up from 87 to 89 at the pump
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VincentHill
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posted September 25, 2006 09:23 PM
quote:
quote:
I don't even for a second consider WD-40 a suitable leakdown "oil".
Am I missing something?
Where do you see any mention of WD-40??
Vince said he used a couple of squits of 10W-40.
Thank You! Blitz only saw W-40 and put in his own "D"!
My COmpression was set at 180 PSI by using a 0.100" base Gasket and Flat topped Pistons. It was about 225 before the fact
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Made History @ Daytona and still one fast old man!!
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blitzkrieg
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Road kill = Free lunch.
Posts: 2044
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posted September 26, 2006 03:45 PM
Sorry!
Must have been the 10 space W space 40 that threw my tired eyes off. LOL
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"BTW....You need to get a girlfriend who's last name isn't .jpg"
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VincentHill
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posted September 26, 2006 04:12 PM
Wait until you get to my age you only need the 40 part!!
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Made History @ Daytona and still one fast old man!!
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blitzkrieg
Needs a job
Road kill = Free lunch.
Posts: 2044
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posted September 26, 2006 05:47 PM
quote:
Wait until you get to my age you only need the 40 part!!
I hear ya Vince.
Used to be I bought cereal for the prize in the bottom of the cereal box, now I buy cereal for the prize in the bottom of the toilet. 
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"BTW....You need to get a girlfriend who's last name isn't .jpg"
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dougmeyer
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moderated
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posted September 26, 2006 08:47 PM
Vince-
Was the air temperature, cranking speed and throttle position (wide open) all the same when you did the baseline and the "after incident " compression tests? Believe it or not, under the right (or wrong) conditions you can loose 10-20 pounds between tests.
If you can rule out the above as a factor, all the wishin' and hopin' in the world won't heal that thing. Pull the head.
My bet is you scuffed the cylinders or collapsed the rings in all four equally.
Sorry.
Your friend,
Doug
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wylde
Expert Class
Posts: 371
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posted September 26, 2006 09:12 PM
Touche',, i was going to ask if the TBS were open or not,, makes quite a difference!
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There you go again,,NOT being aware of yourself !
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VincentHill
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Posts: 6520
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posted September 27, 2006 03:30 AM
Better than the Throttles wide Open, they were removed! Understand I "AM" Treating this as If I will have to remove the head. I just do not want to say I wish I had checked this before I took it apart. So between Dealing with Peggy's Moms Funeral arragements and everything else I plan to do a leak down test and take a look with a Bore Scope I bought and unless everything looks "Pristine" the Head will come off (and most likely even if it looks Pristine but I am thinking that even worse I will have to lift the Cylinder off and dealing with Rings is the #1 thing I hate to do... 
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Made History @ Daytona and still one fast old man!!
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GUNNER
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posted September 27, 2006 06:34 AM
Edited By: GUNNER on 27 Sep 2006 07:38
quote:
My bet is you scuffed the cylinders or collapsed the rings in all four equally.
Sorry.
Your friend,
Doug
Damn don't I feel smart to have guessed the same thing Doug guessed as indicated by one of my above post. That's two of now Vince does anyone else want to make a guess??
Doug does this mean you and I have spent too much of our life around broken shit, fixing broken shit, or breaking shit? OR ALL of the above? OR.................D..HOOKERS?
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dougmeyer
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moderated
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posted September 27, 2006 09:16 PM
Edited By: dougmeyer on 27 Sep 2006 22:20
Well, Gunner, You might just be an EXPERT like me.
Expert (ek'spert); n.
a. Someone who has fucked up every way possible in a given pursuit.
b. A second person who is constantly repairing the results of one described in def. a.
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GUNNER
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posted September 27, 2006 09:26 PM
I pick all of the above Doug!! But that pursuit has kept me out of trouble all my life for the most part.
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VincentHill
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Posts: 6520
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posted September 28, 2006 06:26 AM
I took a Bore Scope and looked into the cylinder and the Piston tops looked Good and so did the valves even the edges of the pistons look OK. SO I will heat the engine and do a Leak down and see what I see before I take it apart!
____________
Made History @ Daytona and still one fast old man!!
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