« previous next »
Pages: [1]   Go Down

Author Topic: Are these cam towers worn out?  (Read 884 times)

0 Members and 1 Guest are viewing this topic.

Offline MattFreeman

  • Hot Shot
  • ***
  • Posts: 331
  • What Have I Done?
Are these cam towers worn out?
« on: March 12, 2010, 01:49:52 PM »
Hi guys.

The project get's bigger every time I clean apart. Can anyone with an experienced eye tell me if I need to replace my cam holders?

Logged

Offline bucky katt

  • Old Timer
  • ******
  • Posts: 4,564
  • i am a pastafarian!
    • facebook
Re: Are these cam towers worn out?
« Reply #1 on: March 12, 2010, 03:32:08 PM »
if you have a telescoping bore gauge set (borrow one if not) and check the size of the bore at at least 3 positions then with the same micrometer you measured the bore gauge with, measure the cam bearing journals.
Logged
Of all God's creatures there is only one that cannot be made the slave of the lash. That one is the cat. If man could be crossed with the cat it would improve man, but it would deteriorate the cat.
Mark Twain - Notebook, 1894

Offline City Boy

  • Hot Shot
  • ***
  • Posts: 689
Re: Are these cam towers worn out?
« Reply #2 on: March 12, 2010, 06:01:30 PM »
Hi Matt.I have seen and used worse without failure.If the scuffed area I see in your picture is slight,I would suggest plastigage the 4 bearings and if you have less than 0.0083'' or 0.21mm [from oem manual],I think you would be good to go.If cost or availability is not an issue,new  may let you sleep better .   Rock On
Logged
'52 Kiekhaefer Mercury Rocket Hurricane KG4H
'70 750/RC 1000 Original Owner
'83 1100F

Offline MattFreeman

  • Hot Shot
  • ***
  • Posts: 331
  • What Have I Done?
Re: Are these cam towers worn out?
« Reply #3 on: March 12, 2010, 07:47:51 PM »
Thanks for the input there fellers. I had a pair of clean ones fall in my lap tonight.  :) :) :)
Logged

Offline bucky katt

  • Old Timer
  • ******
  • Posts: 4,564
  • i am a pastafarian!
    • facebook
Re: Are these cam towers worn out?
« Reply #4 on: March 12, 2010, 07:50:58 PM »
hang onto the others in case of emergency. i never throw parts out unless theyre obviously not usable even a little bit, like the shelf full of pistons from my race bug's cylinder #3
Logged
Of all God's creatures there is only one that cannot be made the slave of the lash. That one is the cat. If man could be crossed with the cat it would improve man, but it would deteriorate the cat.
Mark Twain - Notebook, 1894

Offline wrenchmuch

  • Hot Shot
  • ***
  • Posts: 698
Re: Are these cam towers worn out?
« Reply #5 on: March 12, 2010, 07:58:15 PM »
Cam towers from heaven . Nice . Read what Hondaman has to say about rocker arm shafts in the FAQ section under Thoughts of Hondaman if you haven't already . That whole section is a great read .
Logged
CB750K1
CB750K4

Offline bucky katt

  • Old Timer
  • ******
  • Posts: 4,564
  • i am a pastafarian!
    • facebook
Re: Are these cam towers worn out?
« Reply #6 on: March 12, 2010, 08:03:22 PM »
Quote from: wrenchmuch on March 12, 2010, 07:58:15 PM
Cam towers from heaven . Nice . Read what Hondaman has to say about rocker arm shafts in the FAQ section under Thoughts of Hondaman if you haven't already . That whole section is a great read .

when i rebuilt my motor i used a bunch of hondaman tricks on the k4 750
Logged
Of all God's creatures there is only one that cannot be made the slave of the lash. That one is the cat. If man could be crossed with the cat it would improve man, but it would deteriorate the cat.
Mark Twain - Notebook, 1894

Offline MattFreeman

  • Hot Shot
  • ***
  • Posts: 331
  • What Have I Done?
Re: Are these cam towers worn out?
« Reply #7 on: March 13, 2010, 11:07:03 PM »
Quote from: wrenchmuch on March 12, 2010, 07:58:15 PM
Cam towers from heaven . Nice .

I was very fortunate.

Definitely looking to the Hondaman thread for advice.

Here's to running by spring. :) :)
Logged
Pages: [1]   Go Up
« previous next »