Jim Bowen 1 Posted May 24, 2013 Just fitting a couple of studs the engine and one of them wouldn't torque up, just spinning in the hole in the head :( Is it possible to fix this with a helicoil? Hopefully i can source one tomorrow or thats me buggered :lol: Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted May 28, 2013 I've ended up ordering a thing called a Wurth Timesert, meant to be a lot better than helicoils, just expensive. Hopefully i'll only need it once then i can sell it. Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted May 29, 2013 Got it today, don't get much for your money, this was £90 :lol: Quote Share this post Link to post Share on other sites
robo22sri 10 Posted May 29, 2013 :( where was the stud issue Jim? Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted May 29, 2013 Was one of the exhaust stud holes in the head, if you are looking at the engine from exhaust side its the bottomest rightest hole. The stud seemed to fit in ok, but took some force to get it in far enough and once i put the manifold on it just kept spinning round. I might of got something stuck in the hole while cleaning that stopped the stud going in, not really sure. I'll fix it though. Didn't fancy a helicoil in the end as this option seemed the best. Quote Share this post Link to post Share on other sites
Timbo 0 Posted May 29, 2013 I've used timeserts before to fix a bike frame. They're way better than helicoils. Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted May 29, 2013 I'm a little concerned about my drilling and tapping capabilities, Drilling is one of them things i never seem to be able to get right, usually go all over the place and staying straight is hard :lol: Went through my finger last time i used a drill :( Quote Share this post Link to post Share on other sites
Stonejag 10 Posted May 29, 2013 Either type would work fine for an exhaust stud - they're only inserted relatively loosely, not under mega-tension like head bolts are. If you're not 100% happy doing it then you'd be much better off asking a local machine shop nicely and offering them a tin of biscuits to do it over the lunch break. Not worth (further) damaging a head in the learning process... Stone Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted May 30, 2013 Did it myself, wasn't as bad as i feared. Bad Hole Make hole bigger with drill Hole is bigger Counterbore the hole The hole ist counterbored Make new thread in the hole New thread ist in de hole Screw in ze insert Use special tool to wind insert in and lock in place, ja! Insert is inserted Worked really well and i managed to do it all myself without cocking it up any further. The insert stuck out about 1mm and didn't sit flush, this was because the insert tool hit the back of the hole. I sorted it out though and manifold is on. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted May 30, 2013 Good stuff! I used normal helicoils on a couple of my exhaust studs and they were fine for 60K miles. Those time serts do look the business though. Quote Share this post Link to post Share on other sites
Supercharged 2 Posted May 30, 2013 Good pics! Quote Share this post Link to post Share on other sites
Stonejag 10 Posted May 31, 2013 Good work! I've had very mixed results tapping things so I'm glad it worked out ok :) Quote Share this post Link to post Share on other sites
