» Site Navigation | | » Recent Threads | | 1999 M3 Swap 09-07-2023 10:10 PM 05-02-2024 08:18 PM 6 Replies, 401,259 Views | | | | | 08-29-2013, 10:25 AM | #1 | Member Join Date: Sep 2012 Location: San Diego Posts: 35 | Help! Stripped water pump threads in block. I was in the middle of doing a mini cooling service, water pump, thermo etc. Got the old pump out put the new one in and lo and behold 3 bolts tighten up but the one on the top right does not, pull it out to find metal all over the bolt. Anyone have any ideas on what I can do to fix this? I really don't want to go the helicoil route. Does anyone know the size of the bolt hole m10X1.50? Would it be advisable to try a tap and die kit? Any help is greatly appreciated. Last edited by Shadowhunter; 08-29-2013 at 10:48 AM. | | | 09-17-2013, 09:56 PM | #2 | Junior Member Join Date: Jul 2013 Location: Honolulu, Hawaii Posts: 8 | Chasing the threads with a tap is unlikely to help since the threads are pretty gone already. That said, there are things you can to. One: live without that bolt. The others may hold the WP on sufficiently. I have done this with other Bimmers. One gone is not too bad, two gone is not good but survivable if they are not adjacent to each other. Two: tap, reinstall and see how she goes. Three: clean the hole with brake cleaner or carb cleaner, install a stud with some JB Weld or appropriate Loctite produce, and use a nut to hold on the WP. If the bolt hole is really screwed and you won't use a helicoil, this may offer the best outcome. | | | 09-19-2013, 04:16 AM | #3 | Senior Member Join Date: Mar 2010 Location: Tulsa, OK Posts: 252 | Helicoil it or tap it a size up and use a different bolt. Don't funk around when it comes to your cooling system. __________________ 1996 318ti base: m44, 5 spd, lsd - 18x8 bremmer kraft wheels w/sumitumo tires 225/40R18 & bmw locking lug studs, 10mm spacers in rear, halo headlights, cold air intake, koni str.t struts and shocks w/mounts, h&r sport springs, serp belts, control arm & tie rod kits, front sway bar links, JVC kd-x50bt headunit w/ipod hook up in the glove box, alpine sps-500(front and rear), jl audio 10" powerwedge max, jl audio 250.1 amp, motor mounts, fuel filter, passenger side window motor, drivers lower window run, muffler hanger kit, various interior bulbs, left door striker/ajar switch, lower hood latches, changed from gray vinal to black leather shift and parking brake boots, m3 weighted shift knob, ngk-r spark plugs, magnecor spark plug wires(blue),new cabin micro-filters,new headliner & a-pillar mouldings, 5w20 synth-blend oil and filter, BG Ultra Guard syn. rear end fluid & ls additive, BG Syncro Shift II syn. manual trans fluids, stainless steel braided brake lines and dot 4 fluid, extra brake light mod, new p/s reservoir and rubber hoses need to do - fix door panels, paint job, MORE MONEY!! | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |