Timing chain plunger... - Victory Forums - Victory Motorcycle Forum
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post #1 of 13 (permalink) Old 03-04-2018, 01:44 PM Thread Starter
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Default Timing chain plunger...

I can run the engine without it can't I? My understanding is it keeps the hydraulic pressure from bleeding off so the valve train noise isn't as noisy upon start up. I want to do a couple heat cycles on my 117 build, but haven't picked up the new plunger....

Brian

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Basement built, 11:1 - 117 Big Bore, CNC ported heads, CNC valve job, .015 deck, .495 cams, 801 MotoWorx Maximus tune, Torque Tubes, Barnett cables, Barnett Scorpion clutch, RPW Slash Pipes, Pro-Taper bars, Penske Shock. 124hp/146tq

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post #2 of 13 (permalink) Old 03-06-2018, 09:11 PM Thread Starter
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for the record, the plunger is important...apparently they put it there for a reason. chain jumped the sprocket. Intake valves kissed the piston. Broke the cam carrier and bent the intake rocker shaft...just had to hear it run on my bday....LOL

Brian

2012 Hammer
Basement built, 11:1 - 117 Big Bore, CNC ported heads, CNC valve job, .015 deck, .495 cams, 801 MotoWorx Maximus tune, Torque Tubes, Barnett cables, Barnett Scorpion clutch, RPW Slash Pipes, Pro-Taper bars, Penske Shock. 124hp/146tq

2011 CCT
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post #3 of 13 (permalink) Old 03-06-2018, 09:48 PM
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Quote:
Originally Posted by nvr_fst_enuf View Post
for the record, the plunger is important...apparently they put it there for a reason. chain jumped the sprocket. Intake valves kissed the piston. Broke the cam carrier and bent the intake rocker shaft...just had to hear it run on my bday....LOL
Ouch! Sounds expensive. Did you pull the plugs and turn the bike over by hand before starting it?
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post #4 of 13 (permalink) Old 03-06-2018, 10:07 PM Thread Starter
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Yes. But Its a different ball game under compression and only one cylinder firing...i think i may be fortunate enough to get by with only replacing the cam carrier. The valves are "holding" water. Will put it back together and do leak down test to know for sure....
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Brian

2012 Hammer
Basement built, 11:1 - 117 Big Bore, CNC ported heads, CNC valve job, .015 deck, .495 cams, 801 MotoWorx Maximus tune, Torque Tubes, Barnett cables, Barnett Scorpion clutch, RPW Slash Pipes, Pro-Taper bars, Penske Shock. 124hp/146tq

2011 CCT
LRS windshield, D&D Slips, K&N Filter, HID lights, Maximus, Forged lowers
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post #5 of 13 (permalink) Old 03-07-2018, 12:16 AM
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So sorry to read this .... ... Are the pistons damaged ? You can buy a cheap camera that fits inside your spark plug hole ....

Keep on posting so someone have some good ideas maybe ?

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post #6 of 13 (permalink) Old 03-07-2018, 05:51 AM Thread Starter
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Its all good, rookie move. The piston has two very small "dents", but i don't think its hurt. I'll year it down a little further but the carrier absorbed the impact which saved the test of it...

Brian

2012 Hammer
Basement built, 11:1 - 117 Big Bore, CNC ported heads, CNC valve job, .015 deck, .495 cams, 801 MotoWorx Maximus tune, Torque Tubes, Barnett cables, Barnett Scorpion clutch, RPW Slash Pipes, Pro-Taper bars, Penske Shock. 124hp/146tq

2011 CCT
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post #7 of 13 (permalink) Old 03-07-2018, 05:54 AM Thread Starter
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Mr sad face's eyebrows are the marks on the piston.
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Brian

2012 Hammer
Basement built, 11:1 - 117 Big Bore, CNC ported heads, CNC valve job, .015 deck, .495 cams, 801 MotoWorx Maximus tune, Torque Tubes, Barnett cables, Barnett Scorpion clutch, RPW Slash Pipes, Pro-Taper bars, Penske Shock. 124hp/146tq

2011 CCT
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post #8 of 13 (permalink) Old 03-07-2018, 06:28 AM
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What were you thinking, run it without a timing chain, ha ha ha.

Anyway AWSOME 117" did the cylinders had to be resleeved or new jugs ?

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post #9 of 13 (permalink) Old 03-07-2018, 06:47 AM Thread Starter
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I didn't run it with out the chain. I ran it without the rubber plunger that is only on the front cylinder cam adjuster.

They were re-sleeved.

Brian

2012 Hammer
Basement built, 11:1 - 117 Big Bore, CNC ported heads, CNC valve job, .015 deck, .495 cams, 801 MotoWorx Maximus tune, Torque Tubes, Barnett cables, Barnett Scorpion clutch, RPW Slash Pipes, Pro-Taper bars, Penske Shock. 124hp/146tq

2011 CCT
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post #10 of 13 (permalink) Old 03-07-2018, 07:03 AM
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Quote:
Originally Posted by nvr_fst_enuf View Post
I didn't run it with out the chain. I ran it without the rubber plunger that is only on the front cylinder cam adjuster.

They were re-sleeved.
Ah i read now the chain jumped a few teeth ...

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