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I'm putting together my 292 for our 64 f100 and need some guidance on the damper installation. I lost my woodruff key and crank bolt. I bought new ones online but the woodruff was obviously not the right size, but think I found the right size at the hardware store. The bolt is apparently the right size, but I'm not sure about the washer. The washer it came with fits inside the damper and won't help drive the damper onto the crank. Does anyone have a closeup of the damper installed, or know the correct size washer? Thanks.
I wouldn't use the damper bolt to install the damper you run the risk of stripping the threads in the crank snout. Go to AutoZone, or O'Reilly's and borrow a damper installation tool. Haven't had a Y-block in decades but most all Ford engines used a grade 8 damper bolt with an extra heavy washer. Dorman would be a good place to start looking or use 2 regular washers.
I wouldn't use the damper bolt to install the damper you run the risk of stripping the threads in the crank snout. Go to AutoZone, or O'Reilly's and borrow a damper installation tool. Haven't had a Y-block in decades but most all Ford engines used a grade 8 damper bolt with an extra heavy washer. Dorman would be a good place to start looking or use 2 regular washers.
Not a bad idea, but to ultimately secure the damper, I still need to see what washer size I need.
Could you measure the circle on the damper where the washer sits, and get an idea on size?
Yeah, of course, but it's a new damper so no marks from the original washer and it has the two holes for the pulley bolts, so I'm not sure how big I can go without interfering with them.
I suspect it is the same as most other Ford engines 5/8-18 bolt with a .220 to.250 thick washer. Here is one to look at don't pay that for one.. Ford Y Block Harmonic Balancer Bolt And Washer 1954 1955 1956 1957 Car Truck 59 | eBay
The lengths vary depending on the engine but any parts house should be able to get you a balancer bolt and washer. Dorman, Pioneer etc. make that stuff for just about anything. The bolt and washer shouldn't cost more than $15 for a new one.
I suspect it is the same as most other Ford engines 5/8-18 bolt with a .220 to.250 thick washer. Here is one to look at don't pay that for one.. Ford Y Block Harmonic Balancer Bolt And Washer 1954 1955 1956 1957 Car Truck 59 | eBay
The lengths vary depending on the engine but any parts house should be able to get you a balancer bolt and washer. Dorman, Pioneer etc. make that stuff for just about anything. The bolt and washer shouldn't cost more than $15 for a new one.
Good for you, as the saying goes there is a sucker born every minute.
actually it's all about convenience. People click a button and it arrives in their mail box. Correct part, no running around looking or guessing at what works.
ebay takes 14% of the sale price AND 14% of the shipping and the fairy godmother doesn't pack or supply the needed shipping supplies. Yea I'm getting rich lol
EDIT:
I just checked and they have increased the % up to 15% for both product sales and shipping payments.
The washer on my spare 239 is .20 thick and 1.7 in diameter. I think it is the same size for the 292. Or maybe not. I looked at my 292 and realized that I don't have the original bolt/washer because I added a double pully. I will try to find the bolt and washer to measure and add that info here.
I have a picture of the 239 bolt/washer and the 292 bolt/washer below. The 292 washer is .32 (5/16) thick and 1-3/4 diameter.
Adding a little more information: I looked up the bolt and washer part numbers for both the 239 and 292 which is to say I looked up the part numbers of the damper to crank bolt and washer for all Y blocks plus a number of other ford engines from the same period e.g. 223, 226, 256 etc. They all use the bolt part number of 6A340 and washer part number of 372757-S (XX200). So both washers in the picture above should be 5/16 thick or .32 to .34, 5/8 ID and 1.76 OD as listed in the manual. The washer should be fairly easy to find, I would think. Hope this helps.
Last edited by ManFordman2; Nov 2, 2023 at 04:52 PM.
Reason: Adding more info
I had no idea a damper bolt could generate this much conservation. ManFordman2 are those bolts 5/8-18 X 1-3/4 inch? If so, that is the same bolt and washer as most 351C's, 351M's and 400's and most likely a lot of others. The main reason for the heavy washer is the damper has to clamp up the oil slinger if equipped and the timing sprocket since those torque to 70-90 ft. lbs. that washer needs to be stiff since the damper isn't flush with the crank snout.. If someone is looking for a bolt that looks the part a grade 9 bolt has the thicker head like the original Ford bolts have. I usually get G9 bolts at Fastenal.
I had no idea a damper bolt could generate this much conservation. ManFordman2 are those bolts 5/8-18 X 1-3/4 inch? If so, that is the same bolt and washer as most 351C's, 351M's and 400's and most likely a lot of others. The main reason for the heavy washer is the damper has to clamp up the oil slinger if equipped and the timing sprocket since those torque to 70-90 ft. lbs. that washer needs to be stiff since the damper isn't flush with the crank snout.. If someone is looking for a bolt that looks the part a grade 9 bolt has the thicker head like the original Ford bolts have. I usually get G9 bolts at Fastenal.
The actual size of the Y-block damper bolt is 9/16-18 x 1-5/8 long and uses a 13/16 socket. Too bad they aren't all the same size though.
