Donate!
Welcome, Guest. Please Login or Register :: View Members
Pages: 1 2 3 ... 28
Send Topic Print
R&R Cylinder Head with Tech Assist (Read 1533 times)
ThumperPaul
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 1065
Houston, Texas
Gender: male
R&R Cylinder Head with Tech Assist
12/15/23 at 10:11:12
 
I want to start by sending out a special thanks to DragBikeMike and Dave who have been invaluable resources and friends as I've stumbled my way through the diary of Woody.  This project is about to get underway because I decided to break off a piece of wooden dowel rod in the cylinder!  Yep, I'm a dumb-arse.

I've done all the easy stuff (seat, tank, exhaust, intake/carb removed).  Today the oil gets drained and tomorrow I'll get her on the stand, upper motor mount removed, decomp bracket/cable off and/or out of the way, and right front foot peg, heat shield, and brake assembly stuff out of the way.

Then I venture into uncharted waters for me - removing the cylinder head with the motor still in the frame.  (I haven't done any major engine work in 40ish+ years.)  That's where the "With Assist" comes into play!  I'm going to need HELP please - despite reading and studying as best I could here and in Clymer!

At the sage advice of those that have gone before me, I've printed out an enlarged diagram of the head cover (with help from the local copy center) and taped it to a cardboard box, reinforced, with holes punched where stuff goes.  As I pull nuts, bolts, and washers from the head cover, they will get plugged into the cardboard diagram because I'm old, have a bad memory, and I like to lose stuff if I don't stay organized, plus it was sage advice!

Since I don't want to say I pulled the cylinder head to remove a chunk of wood from the cylinder (that's already embarrassing enough here), the story will read that I did the following once this is all wrapped up.

1) piston and head cleaned
2) Installed Web-Cam 466 camshaft
3) CCT checked and (likely upgraded to a Verslavy CCT)
4) Clutch plates and fiber discs checked and cleaned/resurfaced/deglazed/replaced as needed
5) Barnett clutch springs installed
6) Install Sneeze clutch cam release

Someone is going to tell me other specs I should check out while I'm in there (fire away!).

So I'm getting this teed up!  Thanks in advance!  Here's Woody waiting for surgery (yeah, I flipped the exhaust heat shield over temporarily to hold things together until I get her on the stand).








Back to top
 

Woody_B4_Surgery.jpeg
  IP Logged
ThumperPaul
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 1065
Houston, Texas
Gender: male
Re: R&R Cylinder Head with Tech Assist
Reply #1 - 12/15/23 at 13:26:27
 
Head cover diagram board is ready to go with a couple important notes about not removing S30 (exhaust rocket arm), and being sure to get the L65 and L70 bolt in place before the head cover is put back in position during reassembly.  Use a clothes pin to prop up L70 while the head cover is put in place - so you don't smear Suzukibond (RTV) in/out of places it should and shouldn't go.
Back to top
 

Head_cover_diagram.jpeg
  IP Logged
ThumperPaul
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 1065
Houston, Texas
Gender: male
Re: R&R Cylinder Head with Tech Assist
Reply #2 - 12/15/23 at 14:14:58
 
A little history about this bike.  I bought it from a young man that thought he wanted to make it his first bike.  He rode it a while and then ran into starting problems.  His friend installed a new battery, starter, and starter solenoid.  He got it running again, but then it wouldn't start for him one day...  I suspect the battery drained down from lack of riding/charging and/or a flooding carb.  I was able to watch a video of it running about 2 months before I bought it.  The bike has good bones, tires, wheels, forks, etc. and I only paid $600.  I thought, hey, easy fixer upper... (charge the battery, clean the carb, give it some love)

What have I done so far....

All basic maintenance is/was now done:
1) oil/filter was changed (now drained),
2) air filter,
3) replaced front brake pads,
4) inflated tires,
5) flushed and sealed gas tank,
6) carb cleaned and jets tinkered,
7) new petcock valve, fuel line and inline fuel filter.
8) installed and now removed used decomp and associated parts (from Versagen, thanks) 

When I had the gas tank off for cleaning is when I decided to go ahead and check the valve clearance and (drum roll) that's where my trouble started by breaking off a piece of dowel rod in the cylinder (yeah, dumb move but I wanted a visual while watching rocker arms and timing marks).

The bike shows evidence of prior tinkering and tuning up.  Not by the kid I bought it from but some prior owner in its past.  The kid I bought it from was totally green and didn't even check the oil or air filter when he bought it.

1) It has an aftermarket exhaust - VooDoo Industries Cafe, about 17.5" depending how you measure, and it has a baffle.
2) It has a "Murray's Carb" (custom tuned Mikuni VM36 round slide).  This is the same VM36 Lancer sells, but it's jetted significantly differently by Murray while all the other carb parts match what Lancer suggests/builds.  This is a complete mystery that has me bumfuzzled because members have experienced good results with both set-ups.  How can this be?!  I'll figure this out later when it comes to carb tuning day.
3) Head cover has some old RTV showing on the valve cover side.  It doesn't look like a factory job and clean up.  Evidence the head cover and likely head have been R&R before, but for what, we will see...
4) Aftermarket "keystone style" handlebars
5) There was a tacky looking Skull bolted onto the right side cover (first thing I took off the bike).  Obviously nothing to do with performance, but prior owner attitude.
6) The entire decompression solenoid, cable, bracket, lever, nut, and spring had been removed.  Only the actuator shaft and oil seal were in place.
7) It had a beautiful valve clearance adjustment/spec when I finally went ahead and checked after my blunder with the dowel rod All were set right at .005" (.13mm) clearance (widest spec, closy valvy).  I am encouraged.
8) Drained the oil on first day that I got the bike.  3 quarts came out (what is this stink?) - about 2 quarts of black oil and 1 quart gas.  Carb flooding on top of dirty oil (not real thrilled on Day 1 with my bargain).
9) Dripping oil near the stator wire exist from the "alternator" side cover and/or from the drain hole under the starter.  Cleaned up the stator wire area of old RTV and reapplied, and installed a fatter o-ring on the starter (Thanks Och).  I think I fixed this leaky mess, but won't know until I get the oil moving around in the motor again.
10) upper motor mount has been previously R&R.  Missing a couple flat washers and lock washers.

That's about it.  Let the fun begin!

Back to top
« Last Edit: 12/16/23 at 06:11:48 by ThumperPaul »  

Skull.jpeg
  IP Logged
ThumperPaul
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 1065
Houston, Texas
Gender: male
Re: R&R Cylinder Head with Tech Assist
Reply #3 - 12/15/23 at 14:16:51
 
RTV Squeeze Out, No clean up.  Somebody has been in here before is what I'm thinking.  Or would Suzuki send it out the factory like this?
Back to top
 

Side_Head_Cover_RTV.jpeg
  IP Logged
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 17823
Camp Springs, Kentucky
Gender: male
Re: R&R Cylinder Head with Tech Assist
Reply #4 - 12/15/23 at 15:03:21
 
I like that you have an inspector on the job....the first photo clearly shows you are being watched.

That RTV job does not look factory to me......you can do better than that.  Neatness counts!

Put on a thin bead about the size of a pencil lead in the center of the mating surface.  At the cam plug you put the sealant in the recess on both the top and bottom of the plug - and it will not ooze out and make a mess.  I will post a few photos in a day or two and show you how I do the sealant.
Back to top
 

IMG_2797.JPG

Someday I will be old......But not today!

  IP Logged
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 17823
Camp Springs, Kentucky
Gender: male
Re: R&R Cylinder Head with Tech Assist
Reply #5 - 12/15/23 at 15:23:41
 
Or if you prefer black.
Back to top
 

IMG_2796.JPG

Someday I will be old......But not today!

  IP Logged
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 17823
Camp Springs, Kentucky
Gender: male
Re: R&R Cylinder Head with Tech Assist
Reply #6 - 12/15/23 at 15:26:50
 
This should be a felony offense!
Back to top
 

headsealplug-032_003.jpg

Someday I will be old......But not today!

  IP Logged
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 17823
Camp Springs, Kentucky
Gender: male
Re: R&R Cylinder Head with Tech Assist
Reply #7 - 12/15/23 at 15:29:58
 
This is waaaay too much sealant.  If it oozed this much inside of the head cover - it likely got into the cam bearings!
Back to top
 

headsealplug-033_006.jpg

Someday I will be old......But not today!

  IP Logged
ThumperPaul
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 1065
Houston, Texas
Gender: male
Re: R&R Cylinder Head with Tech Assist
Reply #8 - 12/15/23 at 16:09:23
 
LOL.  I knew that rtv job didn't look right.   The orange/red RTV job is definitely a felony offense!  LOL.  At least clean that mess up after the detailed work done inside!!

Yeah, that's my assistant Midge!  She likes to find things she shouldn't get into on the garage floor!  She's found at least 3 plastic tip caulk applicators recently which she promptly chews into unusable pieces.  I drop 'em and can't ever find 'em, but she'll find 'em like nothing hiding somewhere!
Back to top
 
 
  IP Logged
DragBikeMike
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 4207
Honolulu
Re: R&R Cylinder Head with Tech Assist
Reply #9 - 12/15/23 at 18:18:38
 
Dave, I just love that sealant picture.  It’s a classic.

Paul, I suggest you start by getting that engine positioned at TDC on the compression stroke.  Since you have a chunk of wood in the cylinder, you need to be careful with rotation of the crankshaft.  I suspect you might already have the thing positioned on the compression stroke, but it won’t hurt to verify that it’s actually on TDC compression.

You want the thing on TDC compression so that the cam lobes are facing down into the oil reservoir, like this.
Back to top
 

TDC_Compression_Cam_Orientation.jpg

Knowledge is power.
  IP Logged
DragBikeMike
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 4207
Honolulu
Re: R&R Cylinder Head with Tech Assist
Reply #10 - 12/15/23 at 18:19:16
 
If the engine is on TDC exhaust stroke, the cam lobes will be facing up.  The stock cam doesn’t have much overlap, so I don’t think you would be fighting much spring pressure, but with the lobes facing up in the overlap position, you have less wiggle room for head cover removal.

See how the cam lobes face up when the engine is at TDC exhaust stroke.  You don’t want the cam in this position for head cover removal and installation.
Back to top
 

TDC_Exhaust_Cam_Orientation.jpg

Knowledge is power.
  IP Logged
DragBikeMike
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 4207
Honolulu
Re: R&R Cylinder Head with Tech Assist
Reply #11 - 12/15/23 at 18:20:35
 
You can confirm that your engine is at TDC on the compression stroke by making sure the timing mark on the alternator rotor is properly aligned with the notch in the alternator cover, and by viewing the position of the cam through the open valve cover on the intake side.

In case you are not familiar with the timing marks, I will post some pics.

The alternator rotor has a TDC mark embossed in the face of the hub (red arrow).  This is the mark in question.  Note the relation of the keyway to the timing mark.
Back to top
 

Timing_Mark_Alt_Rotor.jpg

Knowledge is power.
  IP Logged
DragBikeMike
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 4207
Honolulu
Re: R&R Cylinder Head with Tech Assist
Reply #12 - 12/15/23 at 18:21:08
 
When the crankshaft is positioned so that the piston is at TDC, the timing mark on the rotor will align with a notch cut in the alternator cover.  On the motorcycle, when the piston is at TDC, the keyway is at the 12 o’clock position, and the timing mark is at the 3 o’clock position.  Your problem is that you won’t know if it is at TDC compression or TDC exhaust.
Back to top
 

Timing_Mark_Alignment.jpg

Knowledge is power.
  IP Logged
DragBikeMike
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 4207
Honolulu
Re: R&R Cylinder Head with Tech Assist
Reply #13 - 12/15/23 at 18:22:18
 
When the engine is at TDC compression, the cam is oriented like this.  Note the oil hole in the exhaust intake cam lobe (the lobe on the left circled in green).  Keep in mind that you are looking from the rear, those are the intake valves.  You can see that the oil hole in the exhaust intake lobe will probably be visible through the intake valve cover on the rear of the head cover.  

Revised 12/27/23.  How did I make such a rudimentary mistake. DBM
Back to top
« Last Edit: 12/27/23 at 11:06:09 by DragBikeMike »  

Oil_Hole_Orientation_TDC_Comp.jpg

Knowledge is power.
  IP Logged
DragBikeMike
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 4207
Honolulu
Re: R&R Cylinder Head with Tech Assist
Reply #14 - 12/15/23 at 18:23:20
 
As it turns out, the oil hole in the exhaust intake lobe is visible through the intake valve cover when the engine is at TDC on the compression stroke.  So just look in through the intake valve cover and verify that the oil hole in the exhaust intake cam lobe is visible through the intake valve cover.  If that oil hole is visible, and the timing marks are aligned properly, your engine should be at TDC on the compression stroke.

See how you can see the oil hole in the cam lobe when you look through the intake valve cover.  I know there isn’t much light, but if you look hard you can see it (yellow arrow).

Revised 12/27/23.  DBM
Back to top
« Last Edit: 12/27/23 at 11:08:42 by DragBikeMike »  

Oil_Hole_TDC_Comp_Exh_Lobe.jpg

Knowledge is power.
  IP Logged
Pages: 1 2 3 ... 28
Send Topic Print


« Home

 
« Home
SuzukiSavage.com
05/08/24 at 06:10:26



General CategoryRubber Side Down! › R&R Cylinder Head with Tech Assist


SuzukiSavage.com » Powered by YaBB 2.2!
YaBB © 2000-2007. All Rights Reserved.