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Re: 3J Improved Production coupe- Racing Videos & Progress
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Posted on: 2016/3/20 8:26
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Re: 3J Improved Production coupe- Racing Videos & Progress
No life (a.k.a. DattoMaster)
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So Cylinder leakage test next Bryan?
The Methanol jet boat I crew for had an off last night and rolled 5 times 😯, driver and nav are ok, they did another coupleof laps but the boat wasn't handling too well,

Posted on: 2016/3/20 9:40
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'68 Thou Wagon,(home now) up and running
'69 2 door project, the yellow thing,
A12A Project motor, for the yellow thing.
A15 PSI Project Motor
'72 CB750k,
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Re: 3J Improved Production coupe- Racing Videos & Progress
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I hope its nothing serious.
Ill do a leakdown test before pulling the engine. Hopefully this will show a blown H.G.
I would like to drop the pan and just check bearing.
Rear end... I'll contemplate what to do back there next.

Posted on: 2016/3/20 12:14
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Re: 3J Improved Production coupe- Racing Videos & Progress
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Update, Things are not good.
All Conrod bearing have delaminated. ACL Race series manufactured in 2013. There is no reason for this to have happened, triple checked clearances, and doing a quick internet search it seems to be too common with ACL in the last few years.
Crank bearings looked ok but some of the delaminated Conrod material can be seen causing some scoring on the surface of these.

Other issues include Exhaust manifold mounting face was not flat and lifted on Cyl 4, as a result the exhaust gases from No 4 burnt through the metal exhaust gasket on that cylinder. After the Qualifying off the turbo was rattled loose (Easy fix).

Haven't looked at the rear end too much yet but know all the mounting brackets are bent, as too is the trans tunnel (collapsed where the handbrake goes, this is where I have my tail shaft loop mounted so it may have got caught on something).

Plan is to get new bearing for the engine and new Head Gasket and put it back together.
Am planning on converting the rear into a "4 link" setup and watts linkage space permitting.
Unfortunately this will probably take most of the 2016 race season to do.

Posted on: 2016/4/2 12:04
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Re: 3J Improved Production coupe- Racing Videos & Progress
No life (a.k.a. DattoMaster)
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so are you going to repair the suspension? or do the 4 link conversion this season?
glad the engine is not to bad, and the bearings might just be a replacement?

Posted on: 2016/4/6 10:15
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'68 Thou Wagon,(home now) up and running
'69 2 door project, the yellow thing,
A12A Project motor, for the yellow thing.
A15 PSI Project Motor
'72 CB750k,
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Re: 3J Improved Production coupe- Racing Videos & Progress
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I am still contemplating what to do with the rear. Would require a lot of work to run a 4 link and watts linkage, including moving some of the fuel system. I have a cunning plan on how to de-link the leaf springs and just use them as a lower control arm. Add two upper links and watts linkage, it will require some custom brackets.

Posted on: 2016/4/6 11:28
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