big surprise. the end of the cam, under the oil pump, has the letters "C" and "H" stamped in it. that's all i have. any ideas?

k

Ok, how 'bout the backside of the cam...does it have anything on it? (when you get it out)

as i said in the other thread i can only look at the thing for short durations. the valve adjs are just hammered. the damn thing is down to a case, cam, lifters, barrels, rods, and a crank. if i wanted to build a god damn engine i would have just used the 2.0 core that i already had.

k

i think this part is shot anyways. here's some #s tho. i would still like to know what it is. i'll post some pictures later.

running down the length of the cam on both sides.

J1 19

C1 D1

CWC EP93

any ideas?

k

QUOTE (rhodyguy @ Sep 22 2005, 04:01 PM)

big surprise. the end of the cam, under the oil pump, has the letters "C" and "H" stamped in it. that's all i have. any ideas? k

maybe these guys made your cam....

The power of Google..................

Sounds like a european motorworks "G" grind....

If it has ever been used, and you do not have the lifters that were run with it- do NOT use it...

If it is new, take your gambles on some lifters that are currently on the market and see what happens..
_________________
Jake Raby
Raby's Aircooled Technology


http://www.shoptalkforums.com/viewtopic.ph...e9a51f83769006f

VERY noticable wear on one of the lobes. both visually and you can feel it when you run your finger over it. with the eccessive spring rates (duals) and whatever else was wrong, the lash caps and the adjusters were pounded pretty hard. so... new cam and lifters i guess. then there's the dilema of the "lifter issue" that i never saw or heard of being resolved. i don't know what the hell to do now.

k

I posted the link for ya......looks like new cam / lifters.......call Jake or email him

a bunch of lobe pictures. overview. notice the wear marks on all of them.

asdf

qwer

zxcv

hjkl

this is the worst of them all. you can make out the taper to the one side of the lobe. you can really feel the drop when you run your finger over it. why would it be so off center? lifter not sitting square to its bore?

k

nice well worn cam.

Jake has new lifters and cams that work now, Kevin.

so much for an engine with 3 tanks of fuel run through it. i spoke with him last week geoff. i'm hoping he will look at this thread. now to figure out which cam? rummor has it there's a std/std crank local. gotta see if i can get the easy payment plan on it. jeanne noted the spike in the visa bill last night.

k

If its gonna be a FI motor then its a 9550 from Jake

no. 40IDF. heat exchangers. for the silver car.

k

QUOTE (rhodyguy @ Oct 12 2005, 05:46 AM)

no. 40IDF. heat exchangers. for the silver car. k

Then get a gooder one. I like my 86b .500 lift 300 duration. this is a fast bus motor. well at least the pistons are BUS 2.0L heads ported by me.
running 40 IDF 32mm vents the tallest intakes I can get under the rain tray.

As far as the failure.............

1.) Improper break-in of the cam

2.) Defective lifters (are they mushroomed)

3.) Improper matching of components (hard face cam lobes and soft lifters or visa versa...poor heat treating....

4.) Poor oil supply

5.) A 9000 RPM run up (several missed shifts or the motor was pounded & starved for oil)

6.) Excessive valve spring pressure

7.) Coil bind of the valve springs (improper installed height - Bent pushrods?)

8.) Defective grind on the cam

I can keep guessing.....................

QUOTE (SLITS @ Oct 12 2005, 07:23 AM)

As far as the failure............. 1.)  Improper break-in of the cam

John

QUOTE (Flat VW @ Oct 12 2005, 08:30 AM)

QUOTE (SLITS @ Oct 12 2005, 07:23 AM) As far as the failure............. 1.)  Improper break-in of the cam John

20 minutes at high 3000 rpm or so.

QUOTE (Aaron Cox @ Oct 12 2005, 07:31 AM)

QUOTE (Flat VW @ Oct 12 2005, 08:30 AM) QUOTE (SLITS @ Oct 12 2005, 07:23 AM) As far as the failure............. 1.)  Improper break-in of the cam John 20 minutes at high 3000 rpm or so.

To what end? edit (for what purpose)

heatcycle?

J

QUOTE (Flat VW @ Oct 12 2005, 08:34 AM)

QUOTE (Aaron Cox @ Oct 12 2005, 07:31 AM) QUOTE (Flat VW @ Oct 12 2005, 08:30 AM) QUOTE (SLITS @ Oct 12 2005, 07:23 AM) As far as the failure............. 1.)  Improper break-in of the cam John 20 minutes at high 3000 rpm or so. To what end? heatcycle? J

No John......

You run 2200 or there abouts to maintain a high oil pressure in the system while the lobes and lifters "wear in" and mate.............

This also help seat the bearings and other stuff....consistent lubrication is most important





















You should know that from sex!

QUOTE (SLITS @ Oct 12 2005, 07:37 AM)

....consistent lubrication is most important You should know that from sex!

In my world Ron, that takes care of itself.....

J

what seems to be the #4 intake lifter did the most severe wear on its side of the cam lobe. placed the lifter on a mirrior to check if it rocked or seemed to be convex. feels like it sits pretty flat.

k

QUOTE (rhodyguy @ Oct 12 2005, 08:45 AM)

what seems to be the #4 intake lifter did the most severe  wear on its side of the cam lobe. placed the lifter on a mirrior to check if it rocked or seemed to be convex. feels like it sits pretty flat. k

AFAIR....there is only a 0.001" taper to a lifter to cause it to rotate in the bore...

What does the bottom of the lifter look like? Star pattern of wear or ?

Remember that #4 intake lifter also is the intake lifter for #2.

the base would never show in a photo. pretty pronounced lines running the length of the lifter. more of a round wear area in the center, some portions of the face near the outer edge show bright, some don't. no star patterning. come on over and take a look at it.

k

QUOTE (rhodyguy @ Oct 12 2005, 09:01 AM)

the base would never show in a photo. pretty pronounced lines running the length of the lifter. more of a round wear area in the center, some portions of the face near the outer edge show bright, some don't. no star patterning. come on over and take a look at it. k

Wish I could Kevin.....wish I could