Re: Final gear ratios for 5th, 6th, and 7th series Packards.
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Modern brake linings will NOT improve your braking feel and will decrease your brake effectiveness. The cable and rod brakes on pre hydraulic systems always have a take-up play which is less noticeable with the early Thirties Vacuum boosted mechanical braking systems. Your woven linings are the best but are now totally illegal in Australia. Importing a vehicle with OEM asbestos parts is a nightmare and costs around 10k to 15k to get around. Your rear axle ratio can be checked by jacking one rear wheel up and rotating the wheel two revolutions whilst counting the tailshaft revolutions. If the tailshaft revs are over 4.5 then you have as 4.69 diff ratio. Peter T
Posted on: 3/23 1:51
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I like people, Packards and old motorbikes
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Re: Final gear ratios for 5th, 6th, and 7th series Packards.
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Standard ratio is 4.69 to 1. Sports models were 4.38 to 1. In either case 50 mph is fine, 55 mph is pushing it and 60 mph sustained should be done only on the way to the engine rebuilders for new poured big ends. Compression ratio was 4.8 to 1 and quite high for the day. Peter T
Posted on: 3/21 0:57
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Re: New Zealand Adventures
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Ah...the good old days!
Posted on: 2/19 3:55
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I like people, Packards and old motorbikes
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Re: head gasket torque on 3-25 Twin Six
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Thanks for the Chart Dave, It is helpful and I would err on the side of caution with any settings. I am not sure which grade of material is used in the head studs but I shall call the previous owner's mechanic and ask him for the head torque settings. The matter is not pressing as there are no bubbles in the radiator flow.
Posted on: 1/8 15:29
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Re: head gasket torque on 3-25 Twin Six
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Thanks Mal, I did ask Will and he said that his mechanic handles that stuff. Looks like I shall be calling his mechanic.
Posted on: 1/8 15:23
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Re: head gasket torque on 3-25 Twin Six
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Sounds like a good idea, I just thought that rather than re invent the wheel...someone may have already has been through this journey.
Posted on: 1/8 7:12
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Re: head gasket torque on 3-25 Twin Six
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Hello all, I assume by the lack of response that no one really knows the 3 - 25 Twin Six head torque. It is definitely not in the Owners Manual. I shall therefore Torque to 45 ft/lbs flattening it out from the centre, as it appears reasonable for the head stud size. Any comments or notes of caution based on previous experience would be welcome.
Posted on: 1/8 4:23
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Re: head gasket torque on 3-25 Twin Six
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Yes Mal, I have always wanted a Veteran Twin Six to complement the 38 Barrymore Twelve. It is a lovely vehicle and I am just fettling it a bit. It has Armstrong Power Steering and takes some shoulder strength to steer. All the best to you Mal. Peter and Ann.
Posted on: 1/7 6:10
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head gasket torque on 3-25 Twin Six
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What is the recommended head torque dimension in ft lbs( or NM if you are EU) on a 1919 Twin Six please?
Posted on: 1/7 2:53
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