I Bought It With a Knock

[Stephan]

lloydie: you are in the lead, and about 1 month ahead :-) My pistons are still in production process in US, and after that I need to rebore cylinders.

[lloydie]

lloydie: you are in the lead, and about 1 month ahead :-) My pistons are still in production process in US, and after that I need to rebore cylinders.

Have you ordered over size pistons ?
I just deglazed the bores :-) .
I hope to be starting the build today :-)

[Stephan]

yes, slightly. 98.5 mm with 11.3 CR. But CP claims 5 weeks to produce custom pistons, so it will take a bit longer. JE oversize is no longer option, as OS oem piston rings are not available, only if somebody have NOS.

sorry for thread hijack :-)

[Big_Jim59]

yes, slightly. 98.5 mm with 11.3 CR. But CP claims 5 weeks to produce custom pistons, so it will take a bit longer. JE oversize is no longer option, as OS oem piston rings are not available, only if somebody have NOS.

sorry for thread hijack :-)

No problem. I love it. It just adds credence to the decision I made to go back stock.

[Big_Jim59]

Good news everyone, my crank and rods came today. Plus I rigged my chain hoist (an inheritance from my grandfather) from an old pool ladder. As you would say "it worked a treat." It picked up the bike without a problem at all. It's funny looking but it works.

[VTRDark]

You think that's funny. You should see what wickys hangman. CBA searching for the pic. Someone else can do that.

(:-})

[tony.mon]

One other tip- try to make sure you fit the pistons the right way round.....
They lasted three years being thrashed horribly before they really objected.

I'd forgotten about that thread, it's about three rebuilds ago.
I'll have the heads off for gasflowing on the current lump in a few weeks, I have some with radical porting that I quite fancy trying just for the dyno numbers- to see if it makes any more power than a light port.

It probably won't, but it's always interesting to play.
Anyway, good luck with yours.

[Big_Jim59]

One other tip- try to make sure you fit the pistons the right way round.....
They lasted three years being thrashed horribly before they really objected.

I'd forgotten about that thread, it's about three rebuilds ago.
I'll have the heads off for gasflowing on the current lump in a few weeks, I have some with radical porting that I quite fancy trying just for the dyno numbers- to see if it makes any more power than a light port.

It probably won't, but it's always interesting to play.
Anyway, good luck with yours.

Thanks! At this point I will be tickled if mine runs and lives. I plan to pay careful attention to the oil pump, PSI relief valve and oil passages. I still don't know what caused the rod problem in the first place and that is troubling. What's nice, except for the piston upgrade, things done to the head and cam replacement are pretty easy.

Yeas ago, my grandfather had the chain hoist on an overhead trolly that he made. It made moving things around the shop a breeze. If I do any more of these I am going to build my one trolly line. I still have the wheeled carrier for it. It would make things so much easier.

[Big_Jim59]

You think that's funny. You should see what wickys hangman. CBA searching for the pic. Someone else can do that.

(:-})

I like it!

[sirch345]

Good news everyone, my crank and rods came today. Plus I rigged my chain hoist (an inheritance from my grandfather) from an old pool ladder. As you would say "it worked a treat." It picked up the bike without a problem at all. It's funny looking but it works.

I like it Jim At least it does the trick, well done

One other tip- try to make sure you fit the pistons the right way round.....

We were not going to mention that Tony good tip/advice all the same,

Keep up the good work Jim,

Chris.

[lloydie]

You just need to dive in now !!!

[Big_Jim59]

You just need to dive in now !!!

LOL Very good! I've come this far. It's time to sink or swim. I gotta keep my head above water.

[VTRDark]

Have you seen this Jim http://www.vtr1000.org/phpBB3/viewtopic ... 15#p371005

Just a word of warning, The California Superbike Race School used to do a session using second and third gears but NO BRAKES, if they still do it I recommend that you excuse yourself from that particular session. Over the years I have had three VTRs and two SP1s who all had the same mechanical issue during that NO BRAKES session. They all snapped the front cylinder con rod just below the “little eye”. This issue has never occurred on either model of bike under any other circumstance. I believe that this may be a combination of a Honda design fault and/or a rider misjudgement of speed to rev ratio causing a “whiplash effect” that snaps the con rod.

It did make me wonder.

(:-})

[Big_Jim59]

Have you seen this Jim http://www.vtr1000.org/phpBB3/viewtopic ... 15#p371005

Just a word of warning, The California Superbike Race School used to do a session using second and third gears but NO BRAKES, if they still do it I recommend that you excuse yourself from that particular session. Over the years I have had three VTRs and two SP1s who all had the same mechanical issue during that NO BRAKES session. They all snapped the front cylinder con rod just below the “little eye”. This issue has never occurred on either model of bike under any other circumstance. I believe that this may be a combination of a Honda design fault and/or a rider misjudgement of speed to rev ratio causing a “whiplash effect” that snaps the con rod.

It did make me wonder.

(:-})

I will be checking all tolerances, the oil pump and the oil passages in the crank and block. I am still working under the theory that the bike was over revved on a missed shift and that knocked the rod bearing out. The bike just does not look abused (and you can tell when you get into things.) I will never know for sure and I can't examined the original bearing insert because it is missing.

Questing: why steal connecting rods? What not aluminum and reduce some of the reciprocating weight?

[Stephan]

Alu rods dont last long and are for pure racing applications, not sure if anybody use them in bikes. Aftermarket rods (carillo) will be possibly lighter, but honda ones are good enough to not bother with anything else.