DAX - broken screw-thread in body engine

greguk

Member
Joined
May 29, 2007
Messages
90
Today, in my "lucky day" I check head nuts and 1 from them start to turn without resistance. 3 of nuts didn't move to much and this lucky one had very little resistance and moves out. I don't know even what to think, I don't feel guilty at all. I strip off Engine Cylinder (1st time), remove it and everything is clear... screw-thread is removed and is on stud. Engine is 3 months old now, low mileage, serviced proper, have changed mounting studs on A2 Steel, worked fine with a little "metal sound" (from time to time). I really didn't use to much power and the tubular wrench is not the best.

What can I say... Please help!!!

What can I use to repair it?

Here is idea to use copper pipe (fi8 / fi5) with screw-thread in on M6 and out M8-9 and glue it.

http://junak.ekoma.pl/article.php?story=20060906132926896 (not in English)

http://cgi.ebay.co.uk/recoil-thread-repair-kit-M8-1-25_W0QQitemZ190144603324QQihZ009QQcategoryZ30917QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.co.uk/Permatex-Stripped-thread-repair-kit-Quality-repairer_W0QQitemZ330158851873QQihZ014QQcategoryZ72203QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I could try to glue it by:
http://cgi.ebay.co.uk/NEW-LOCTITE-SUPER-STEEL-METAL-REPAIRING-EPOXY-ADHESIVE_W0QQitemZ230161903615QQihZ013QQcategoryZ131625QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
but this is Heat resistant up to 150°C. only

THERMOSTEEL HIGH TEMPERTURE METAL REPAIR 4 FLUES KILNS
http://cgi.ebay.co.uk/THERMOSTEEL-HIGH-TEMPERTURE-METAL-REPAIR-4-FLUES-KILNS_W0QQitemZ200142655679QQihZ010QQcategoryZ122946QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.co.uk/THERMOSTEEL-HIGH-TEMP-METAL-REPAIR-INFO-HERE-P-P-FREE_W0QQitemZ270157143734QQihZ017QQcategoryZ21654QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
Heat resistant to 1300ºC.

Better to glue it (THERMOSTEEL HIGH TEMPERTURE) or drill and replace (recoil-thread-repair-kit)?

That guy which sell recoil-thread-repair-kit have on auction:
WE'VE ALL HAD THAT MOMENT WHEN THE BOLT STRIPS OUT...WHICH IS NORMALLY FOLLOWED BY A SPATE OF SPANNER THROWING,SWEARING..AND IN EXTREME CASES TEARS ( LOL )
I really feel like that :(

Looks like it's M8 x1.00 rod
 

Attachments

Last edited:


G

gone_fishin

Guest
same thing occurred on an early dax of mine...one stud was vibrating out from below, whenever i re-tightened it was only pulling it out more.

good luck, & keep us posted.
 
Last edited by a moderator:
B

Bertsimon

Guest
What did you do about it augidog? Seems one of mine is also stripped but not too bad. All are super tight except for one.
 
G

gone_fishin

Guest
well, i had caught it during the warranty...dax totally hooked me up with a replacement.
 
B

Bertsimon

Guest
Thats awesome. I am just going to take one off my old motor to put it in the one that is stripped
 
Top