So my water pump bearing is on its way out and I was taking the belt tensioner off to access the last bolt on the pump which is hidden behind the tensioner. Well, the 8mm Allen head pivot bolt in the tensioner is stripped I’m assuming from my local shop who installed the new tensioner in January.
I had the passenger side front tire off to gain better access and everything. I have a few inches of space at best and I cannot get a good bite in this bolt. Allen keys, Allen sockets, torq bits, I can’t get anything to grab. The bolt is recessed to where it’s pretty much flush and I can’t get pliers on it.
What can I do?
Last edited by NavyVet88; 10/05/1908:25 PM.
2013 Honda Civic LX 1.8L 178k M1 HM 0w20 with Fram XG7317 2002 Ford Ranger Edge 3.0L 67k Castrol Edge 5w30 with Fram XG3600 Maintenance Technician by trade, working class for life.
Drill the head off, remove the part and go after the remnant with vise grips. You could try an XZN bit that is slightly larger and pound it in with a hammer but I have a feeling it will strip out also.
A guy taught me this trick for dealing with.a wallowed out socket head. First dig all the dirt out Wack it with the ball of a hammer.Stop peening when the allen no longer fits. Then lightly tap the allen in. The metal In the socket moves away from the hole . On a really messed up bolt head, you can see or feel the displaced steel.. Move the metal back into the socket . Rinse and repeat.. There are 12 10mm socket head bolts holding in an E-28 rear axle. I used to harvest axles . I had a very high success rate with this method and it works on smaller ones too. To prevent it in the first place the tool needs to bottom in the socket. The socket must be clean ! I sold the axles, but 10x50mm bolts hold the starter in the Rat. and a few other things too.
'16 Camry LE STP synth 0w20 and STP filter. the Fridge
1994 Ranger ,the Rat, 5w30 dino, STP filter
'16 Camry SE, Valvoline HM 0w20 and OEM filter Thick oil is better
I don’t know if this will work for you, it did for me in a similar situation. Cut an 8mm key down to a size long enough to seat all the way in the tensioner, & long enough to use a prybar against the frame rail to help keep the key wedged in place. Put a wrench over the key before using the prybar. Then if someone can help, one works the prybar & the other works the wrench on the Allen key.