yes, another head bolt DIY question...
Thread Starter
Member
Joined: Oct 2017
Posts: 176
Likes: 11
'10 C63 P30
yes, another head bolt DIY question...
Talked myself into DIY new HBs. With 96K miles, am guessing breaking a HB upon removal is a real possibility - been researching 'TTY bolts' for tips to lessen the chances and came upon a few who rap the head of the bolts with a mallet(via some tap and usually 2-3 times as they're being loosened) to help prevent breakage but all appear on a bolt with a traditional 'beefier' head(like the new replacements). I'm of the mind that if tapping the old bolt causes it to break, it'd likely break during removal anyway and plan on using this method but I'm a noob so...WTH do I know? Anyone try/recommend this?
To answer a couple of questions I had (and recall asked elsewhere) - DO NOT use any thread locker/sealant or lubricant with TTY bolts. Bolt holes should be clean/dry - ARP makes a 'thread cleaner chaser'($50-$60) that I'm guessing too short/difficult to use thru the head but might be worth a look? My plan, for now, is to use brake cleaner, wire brush and some modified vacuum attachment chased with compressed air after all debris removed - please correct me if I'm wrong
I'm sure a minor point, but am currently in freezing conditions - garage/engine probably 30-40 degrees prior to heating the garage up - have to assume the colder the block, the better?
To answer a couple of questions I had (and recall asked elsewhere) - DO NOT use any thread locker/sealant or lubricant with TTY bolts. Bolt holes should be clean/dry - ARP makes a 'thread cleaner chaser'($50-$60) that I'm guessing too short/difficult to use thru the head but might be worth a look? My plan, for now, is to use brake cleaner, wire brush and some modified vacuum attachment chased with compressed air after all debris removed - please correct me if I'm wrong
I'm sure a minor point, but am currently in freezing conditions - garage/engine probably 30-40 degrees prior to heating the garage up - have to assume the colder the block, the better?
Last edited by gmore; Feb 13, 2018 at 05:03 PM.
MBWorld Fanatic!
Joined: Jun 2011
Posts: 3,318
Likes: 171
From: Silicon Valley, CA
C63 AMG, P30
Take a look at this:
https://mbworld.org/forums/c63-amg-w...adventure.html
https://mbworld.org/forums/c63-amg-w...adventure.html
Thread Starter
Member
Joined: Oct 2017
Posts: 176
Likes: 11
'10 C63 P30
Take a look at this:
https://mbworld.org/forums/c63-amg-w...adventure.html
https://mbworld.org/forums/c63-amg-w...adventure.html
Yes, been thru your thread multiple times and thanks for the write-up - my main question is on the 'mallet-tap' method (sorry if you addressed this, just don't recall).
Wouldn't normally bug but since you're 'here' - what's the Lubriplate 105 for? Is that an alternative to the redline oil applied to lifters?
MBWorld Fanatic!
Joined: Jun 2011
Posts: 3,318
Likes: 171
From: Silicon Valley, CA
C63 AMG, P30
Yes, been thru your thread multiple times and thanks for the write-up - my main question is on the 'mallet-tap' method (sorry if you addressed this, just don't recall).
Wouldn't normally bug but since you're 'here' - what's the Lubriplate 105 for? Is that an alternative to the redline oil applied to lifters?
Wouldn't normally bug but since you're 'here' - what's the Lubriplate 105 for? Is that an alternative to the redline oil applied to lifters?
Yes, exactly. It's just lubrication in place of oil during the first start.
Thread Starter
Member
Joined: Oct 2017
Posts: 176
Likes: 11
'10 C63 P30
Super Member
Joined: Nov 2013
Posts: 825
Likes: 114
From: Eufaula, Al/Georgetown, GA
W213 E63S Wagon, W204 C63 P30(RIP), WK1 Grand Cherokee SRT8(RIP)
There is ZERO mechanical sense in rapping on a bolt head where you may have bolt stretch involved...who the f*ck are you, Kanye? That can be helpful if you have a bolt head that had gauled or rusted in place. But serious note, you shouldn't be concerned about a head bolt breaking. If it were to let go it will be the head that breaks off, not the shaft or threads. Once the head breaks off the remaining bolt is no longer under tension and you can most times remove it with your fingers....you'll be fine, jump on in
