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Stripped bolt in water pump can i re tap to larger hole

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Posted on Jan 02, 2017

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SOURCE: move timing cover with the motor still in the car. go behind harmonic balincer

sounds like you have had a frustrating time.... sorry to add to it.... i believe the balancer has to come off to replace the timing cover.


Posted on Sep 27, 2008

  • 49 Answers

SOURCE: front spindle caliper mount holes stripped,any fixes

they make heily coils to either down one size or up one size .make sure you put red lock tight on heily coil when you instal in the striped hole.make sure holes are CLEAN.

Posted on Feb 21, 2009

  • 6 Answers

SOURCE: 1991 chevy 1500 water pump removal

I'm not so certain you need to take that pulley off to get the water pump off. All the bolts should be accessible. Aren't there holes in the pulley that line up with any hidden bolts in behind? GM is well known for doing that. Rotate the pulley until you can sneak a socket through the pulley hole and get onto the bolts you need. (Unless this is a different design).

Posted on Mar 03, 2009

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SOURCE: can't remove water pump

Use a paint spatula (Metal) and tap it in between the pump and housing and kep tapping and moveing it in different directions, then go to the other side and do the same, someone may have put silicone on the pump before. if you need more help getting it off let me know and make sure you have ALL the bolts out.

Posted on Jul 28, 2009

  • 107 Answers

SOURCE: the caliper bolt hole is

Purchase an insert! You will have to drill the hole and then thred it and then screw in the insert that is sized to you bolt. Get a good quality one! $3-$5

Posted on Sep 15, 2010

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1 Answer

Break bolts going into the caliper are stripped need to tap to a 14 mm thread. anyone know a car that uses 14 mm threads on their break pins

I would recommend either replacing the spindle with a salvage yard part that still has good threads, or installing an insert in the messed up one that you currently have. You try and just tap the hole larger and find a larger pin, the caliper probably will not fit over it anyway.

Mar 25, 2014 | 1999 Volkswagen Beetle

1 Answer

The bolt holding the crank position sensor sleeve is stripped

get the next size larger bolt. get a tap that matches the teaed size and re tap the hole for the new bolt. Or if the threads are not completly gone,you can try red thread locker and see what happens. if that fails, then go to top of post.

Jan 31, 2013 | Cars & Trucks

1 Answer

What is behind the timing cover that the water pump bolts go in to?

Here's a link to the water pump,maybe you can tap the holes and use larger bolts.

Dec 31, 2012 | 1994 Cadillac DeVille

1 Answer

How do I fix a block that has pulled the threads out of the hole for the head bolts. This engine is a dual overhead cam out of a 2001 cadilac

3 things you can do here;

1 You can re-tap the hole one size larger and use a larger diameter bolt or stud. If you use this solution the component being bolted down will have to have a clearance hole drilled in it to take the larger diameter bolt or stud

2 If you're dealing with stripped stud hole you can re- tap the hole one size larger and use a" stepped " stud . One end is the larger thread the rest of the stud is the original diameter and thread.

3 The best solution, particularly if your dealing with a thread in an aluminium casting, is to fit a thread insert. These are sold under a range of names e.g Helicoil, Recoil, and come as a kit made up of a tap, a quantity of thread inserts and an insertion tool. Each kit only covers one thread size.

Hope this helps

Dec 04, 2012 | Cadillac DeVille Cars & Trucks

1 Answer

Starter will not stay tight, chevy 350

It sounds like the bolt holes may be stripped. Try and put the bolts in without the starter use new bolts and try to pull them out by hand. If you can not it is possible they may be only partly stripped and need the threads cleaned up. Make sure you use the proper size tap. If you still have problems you may need to drill out the bad bolt hole or holes one size larger and re-tap the holes one size larger. This is a big job and you will need larger bolts as well. Depending on the room you have to work with you may have to pull the engine to do a good job. good luck.

Jul 18, 2012 | Cars & Trucks

1 Answer

How to locate and change water pump on 2000 buick lesabre, 6 cylinder engine

I assume you have a 3800 V6 motor in that model car. When standing with the hood open on the passenger side of the car, the water pump is located in the center of the engine. The pulley will have four small (8mm) bolts. To remove: Loosen the 4 bolts on water pump pulley.
Use 13mm socket wrench on tensioner pully to rotate and pull tension off of serpentine drive belt. Take belt off of tensioner and water pump pulleys, bend back out of the way. Finish removing water pump pulley bolts and remove pully. Remove water pump bolts (there are several of 2 different sizes, 10mm and 13mm) . Remove old pump by prying gently around the pump rim to break the gasket's seal, or tap shaft with a rubber hammer. Remove all signs of gasket material on engine mating surface with a scraper and then some fine sandpaper (1000 grit wet/dry) or steel wool. Use high-tack sealant to mate gasket to new water pump, allow to set to a few minutes. Use high-tack again on engine mating surface, allow to set a few minutes, then put water pump to engine using the small bolts tightening them finger tight. Put a small amount of black RTV sealant on larger, long bolt ends about 1/2 " of threads covered. Insert longer/larger bolts and tighten finger tight. Tighten all bolts to firm hand tight using a criss-cross pattern starting in the center top to bottom, then side to side.Do not overtighten, as damage to your new pump or striping thread holes out will result. Allow assembly to set 1/2 hour for sealants to cure. Install pump pulley. Install drive belt. Refill coolant level. Start engine, allow to warm up and check for leaks. Done! :)

Jun 11, 2011 | 2000 Buick LeSabre

1 Answer

The bolt that holds the tensioner on is stripped out. What do i do?

Hi, if it's just the bolt, replace it. If it's the bolt hole, it will have to be drilled and tapped for a larger size bolt. Select a slightly larger (thicker) bolt and get/borrow a tap and drill for that bolt. If you haven't used a tap before, have it done by someone that has experience. If you aren't good with a tap, you can get yourself into a lot of trouble by breaking the tap off in the hole. I've been there and it isn't habit-forming. Please let me know if you have questions, and thanks for using FixYa.

Mar 07, 2011 | 1999 Pontiac Montana

3 Answers

Im replacing the water pump on my 1994 f350 with the 460 engine. I have one bolt on the pump that will not tighten. What do you suggest I try?

Bummer, your only option is to address why the bolt will not tighten, either the wrong bolt (too short) or stripped threads. If threads are stripped, use a helicoil to repair. Be certain to allow straight access as this step must be perfect or larger problems will result.

Oct 05, 2010 | 1994 Ford F350 Crew Cab

1 Answer

Can we repair the worn out v-threads ?Is it possible to repair the partly damaged v-threds on mild steel ? How the thred damage can be avoided ?

Threads on the bolt are not a problem because you can replace it easily with a ne one. Stripped threads on the bolt hole are another story. You can try helicoils but the best solution is to redrill the hole and buy a tap which it a threaded tool which you slowly screw in and out of the hole going deeper bit by bit until it has cut a new thread. You will now need a larger diameter bolt. This is aesy if the hole is easily accessible and if there is enough metal around the hole to make it slightly larger. This would be a job that a small engineering works could do and it shouldn't cost a lot. You could probably even wait for it to be done. Threads strip if they are tightened too much, or if you are trying to use a bolt with the wrong thread or if you cross thread the bolt. Also some poorly finished castings have a lot of play in the threads which can cause them to strip easily.


Mar 04, 2010 | 2007 Avanti Convertible

1 Answer

1991 chevy 1500 water pump removal

I'm not so certain you need to take that pulley off to get the water pump off. All the bolts should be accessible. Aren't there holes in the pulley that line up with any hidden bolts in behind? GM is well known for doing that. Rotate the pulley until you can sneak a socket through the pulley hole and get onto the bolts you need. (Unless this is a different design).

Sep 04, 2008 | 1991 Chevrolet C1500

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