Builds New project, 1969 fj40 (1 Viewer)

[charliemeyer007]

So lay or tape a piece of gasket paper to the water pump. Take a very small hammer and tap gently around the circumference at about 45 degrees, after several passes gasket will be cut to fit. Use a small ball peen hammer at the bolt holes, a few dozen taps and a perfect hole is made. Make 2 so you have a spare.

 

[Chungas Revenge]

Water Pump Gasket FJ40, FJ45, FJ55, FJ60 1958-1974

1958-1974 FJ40, FJ45, FJ55 Water Pump Gasket

cruisercorps.com

69 1f?

Edit: Whooops. Sold out.

 

[6f40j9]

Water Pump Gasket FJ40, FJ45, FJ55, FJ60 1958-1974

1958-1974 FJ40, FJ45, FJ55 Water Pump Gasket

cruisercorps.com

69 1f?

Edit: Whooops. Sold out.

So lay or tape a piece of gasket paper to the water pump. Take a very small hammer and tap gently around the circumference at about 45 degrees, after several passes gasket will be cut to fit. Use a small ball peen hammer at the bolt holes, a few dozen taps and a perfect hole is made. Make 2 so you have a spare.

I could, the hole in the middle may be problematic. I have to find my gasket paper…

 

[Chungas Revenge]

2nd swing.

SOR is showing one in stock.

Number	Price	In Stock	Click for Zoom​
		054-025A	$4.48
INNER WATER PUMP GASKET Fits 1958-1974 F gas engine - Updated gasket has extra bolt hole Club Price with 15% Discount is $3.81 Click here for info about joining Club SOR WARNING: Cancer and Reproductive Harm — www.p65warnings.ca.gov

 

[Chungas Revenge]

#26 on the diagram. Not sure which one you need #25 or #26. BPF sticker shock on SOR shipping. You’re a little closer to home so it may not be as bad as shipping out East.

054-026A	$1.70
WATER PUMP GASKET Fits 1958-1974 F gas engine On Sale - Everyone gets the Discounted Price on this part. WARNING: Cancer and Reproductive Harm — www.p65warnings.ca.gov

 

[6f40j9]

#26 on the diagram. Not sure which one you need #25 or #26. BPF sticker shock on SOR shipping. You’re a little closer to home so it may not be as bad as shipping out East.

054-026A	$1.70
WATER PUMP GASKET Fits 1958-1974 F gas engine On Sale - Everyone gets the Discounted Price on this part. WARNING: Cancer and Reproductive Harm — www.p65warnings.ca.gov

Ordered (2), I choose usps for small stuff with them, at least they use lube that way

 

[6f40j9]

So here the weird thing. The bolts I’m using only extend into the block ~3/8”. I can thread a good bolt into the ‘bad hole’ much farther and it feels good, bottoms out, comes out clean. I re tapped the hole again, it was fine. But both times I pulled out the spun bolt, (with the water pump on), the end is boogered up.

 

[charliemeyer007]

I'm no expert but that bolt is wore out on the threads. My guess someone cleaned it up on a grinding wheel instead of a wire wheel. Three thread or more is usually good. At the bottom of a blind hole there needs to be some gap or you can easily crack the block torquing at too long bolt in place. Shortening longer bolts on a grinder or with a cut of wheel first is just a few minutes. Helps to put a nut on first, so it clean the thread as you remove it to chamfer the end.

Other fixes I have used. On a round thread cutting die I have turned the screw in on the split to cut oversize threads that will fit tightly in a worn hole. I did that by turning down the next size up bolt.

Big fan of anti seize compound, thread locker and torque wrenches (used by 1/3's in sequence)

Bolt/screw specification are in books or even online. Drilling a hole for a tap usually lists 2 drills for about 60 to 70% threads.

 

[6f40j9]

I'm no expert but that bolt is wore out on the threads. My guess someone cleaned it up on a grinding wheel instead of a wire wheel. Three thread or more is usually good. At the bottom of a blind hole there needs to be some gap or you can easily crack the block torquing at too long bolt in place. Shortening longer bolts on a grinder or with a cut of wheel first is just a few minutes. Helps to put a nut on first, so it clean the thread as you remove it to chamfer the end.

Other fixes I have used. On a round thread cutting die I have turned the screw in on the split to cut oversize threads that will fit tightly in a worn hole. I did that by turning down the next size up bolt.

Big fan of anti seize compound, thread locker and torque wrenches (used by 1/3's in sequence)

Bolt/screw specification are in books or even online. Drilling a hole for a tap usually lists 2 drills for about 60 to 70% threads.

These bolts were new and the threaded hole is much deeper than the part of the bolt that goes into it once the water pump is mounted.
2 bolts have been messed up at the ends but only when they’ve bolted up the pump.

 

[majdomo]

Is that hole on the water pump a little too small, or out of alignment with the block so as it goes through, it gets bound up on the backing plate and boogers threads? Just a thought.

 

[6f40j9]

Is that hole on the water pump a little too small, or out of alignment with the block so as it goes through, it gets bound up on the backing plate and boogers threads? Just a thought.

It didn’t feel like it but at this point anything is possible. I should start with that bolt next time.

 

[charliemeyer007]

Can you start all the bolts by hand, right up to the point of actually applying torque? Something has damaged those threads - they look like ACME ones - flat at the top not ^. I would do longer bolts to get more threads holding the load.

 

[6f40j9]

Can you start all the bolts by hand, right up to the point of actually applying torque? Something has damaged those threads - they look like ACME ones - flat at the top not ^. I would do longer bolts to get more threads holding the load.

These are ~1 1/4” from tip to lock washer. I thought I read somewhere they’re supposed to be 45mm or ~1 3/4”. The alternator bracket one should be 60mm?
I’m trying to get a new bolt kit for it from a cruiser parts place before I put it back together.

 

[charliemeyer007]

Home Despot and Lowes have good selections of graded bolts. Their online website is useless even if you can find the bolt and it says they have 10 of them actually they might have 1. Lately I have got good deals and prices from both ebay and Amoron.

There is a lot pressure to hold a water pump/fan in place, you will be much happier with longer bolts. One gets sealant IIRC.
Maybe in the FAQ thread at the top is the bolt list.

 

[pb4ugo]

Looking at your pic of the water pump with the stripped bolt, i think you need more thread engagement if the hole allows for it. Running a standard tap in the hole to chase the threads may not be enuff. You'll need to measure its depth and compare it with a bolt. A standard tap is tapered, you might need to use a bottoming tap to reach the bottom of the hole.

 

[rainingagain]

These are ~1 1/4” from tip to lock washer. I thought I read somewhere they’re supposed to be 45mm or ~1 3/4”. The alternator bracket one should be 60mm?
I’m trying to get a new bolt kit for it from a cruiser parts place before I put it back together.

I know the early ones are around 40mm and the later pump base is thicker so the later bolts are likely longer than that. Regardless, the one you have there is too short.

 

[Wildcat Walker]

As a rule of thumb, the engagement of the threads MUST be equal to or greater than the major diameter of the fastener. If that's a 10mm bolt you must have atleast 10mm of the length engaged in the female section, excluding the tip of the bolt where the threads narrow. You definitely do not have that. Clean the block holes with a thread restored set, which can be rented for free from local parts house, and use a bolt atleast 10mm longer than what you have there. Also, start measuring in mm so you don't have to convert when you go to buy stuff. After a while of using metric units, you will forget about that silly imperial stuff.

 

[6f40j9]

As a rule of thumb, the engagement of the threads MUST be equal to or greater than the major diameter of the fastener. If that's a 10mm bolt you must have atleast 10mm of the length engaged in the female section, excluding the tip of the bolt where the threads narrow. You definitely do not have that. Clean the block holes with a thread restored set, which can be rented for free from local parts house, and use a bolt atleast 10mm longer than what you have there. Also, start measuring in mm so you don't have to convert when you go to buy stuff. After a while of using metric units, you will forget about that silly imperial stuff.

Will get a restorer tap. These bolts came with the water pump, for this application. Hopefully the set I just ordered from a different cruiser place will be longer.

 

[rainingagain]

Will get a restorer tap. These bolts came with the water pump, for this application. Hopefully the set I just ordered from a different cruiser place will be longer.

There is one bolt that is slightly longer than the other. If you look at the base, you'll see why. But still, from your pick it looks like you have the on one of the shorter holes.

 

[6f40j9]

.

Yes, one bolt is longer for the base thickness and the alternator bracket. It’s funny though, they (sellers) mention air pumps but not alt brackets. I don’t have an air pump but need a longer bolt regardless.
In the pic I used the 3x bolt in one of the regular holes to be as accurate as possible.