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Search: Posts Made By: dan r
Forum: The Board 09-21-2020, 10:58 AM
Replies: 36
Views: 1,547
Posted By dan r
Re: 80" Super Magnum motor build

Glad to hear your planning to check pressure at the rocker shafts when completed if only temporarily. I can see how you think pressure will be up enough because of the passage size. The small hole...
Forum: The Board 09-19-2020, 06:14 PM
Replies: 36
Views: 1,547
Posted By dan r
Re: 80" Super Magnum motor build

Scott
I think your setting your self up for an oiling problem.

Here is why I feel this way. On the U model engines that get a better than oem pump is a good thing. Your aftermarket pump may...
Forum: The Board 09-19-2020, 05:20 PM
Replies: 36
Views: 1,547
Posted By dan r
Re: 80" Super Magnum motor build

The smaller part shown is used to align the lap tool yes. That part with the knurled parts is what is used when the case has Timken tapered roller type bearings. The tool is inside the Timkens that...
Forum: The Board 09-18-2020, 02:52 PM
Replies: 36
Views: 1,547
Posted By dan r
Re: 80" Super Magnum motor build

tool in the second pic is a bearing race lap tool. you adjust the slotted looking part on it's tapered arbor shaft to expand the OD of the tool. the arbor shaft is piloted by the other bearing race...
Forum: The Board 09-18-2020, 02:43 PM
Replies: 36
Views: 1,547
Posted By dan r
Re: 80" Super Magnum motor build

might think about making a sealed cap for the sprocket shaft if your running a belt drive. here's a home made cap and seal going onto slightly modified 38 UL cases...
...
Forum: The Board 09-18-2020, 09:22 AM
Replies: 36
Views: 1,547
Posted By dan r
Re: 80" Super Magnum motor build

First... I like your project a lot.

Question about the oiling mods.

Why 360 degree oiling on the pinion?
How will you maintain oil pressure at the rockers when it's leaking through the pinion...
Forum: The Board 07-25-2020, 08:55 AM
Replies: 48
Views: 1,692
Posted By dan r
Re: Tranny Main seal shaft leak?

OK, the small seal that runs on the main shaft. that seal is pressed into what I call the main drive gear. The bore in the end the seal presses into quite often has burrs, a sharp edge and will...
Forum: The Board 07-25-2020, 08:15 AM
Replies: 48
Views: 1,692
Posted By dan r
Re: Tranny Main seal shaft leak?

To fix an oil leak, you must identify exactly where it's leaking from. Four speed transmissions seem to be the biggest leakers ever built. There are so many built in design flaws it's pretty hard to...
Forum: The Board 07-20-2020, 01:13 PM
Replies: 19
Views: 1,049
Posted By dan r
Re: Stroker question

yes, but within close limits. maybe a few grams can be removed before strength is altered. swapping wrist pins can remove the weight as well. tapered bore or thinner wall thickness pins will remove...
Forum: The Board 07-16-2020, 05:38 PM
Replies: 19
Views: 1,049
Posted By dan r
Re: Stroker question

if piston to cylinder clearance is in a usable range... easy... shim the cylinders, stroker plates. it has been done to lower the compression for over a hundred years. a 0.062" shim will lower the cr...
Forum: The Board 07-15-2020, 12:47 PM
Replies: 22
Views: 810
Posted By dan r
Re: lights the hard way

you will be disappointed with quality. every one i had seen worked but then had bearings fail. the one i used here failed and started dropping balls into the gearcase on my 63. I replaced the...
Forum: The Board 07-14-2020, 08:34 PM
Replies: 22
Views: 810
Posted By dan r
Re: lights the hard way

the bike... 1920 J model.
real 1920 J parts, 61 inch engine, 3 speed trans, repaired and then modified oem frame, oem springer with new tubes sweated into the old forgings.
80's narrow glide front...
Forum: The Board 07-14-2020, 10:35 AM
Replies: 22
Views: 810
Posted By dan r
Re: lights the hard way

try this again...
https://i.postimg.cc/sX76Gvmx/20Jleft.jpg (https://postimages.org/)

i think it works...
Forum: The Board 07-14-2020, 10:23 AM
Replies: 22
Views: 810
Posted By dan r
Re: lights the hard way

i am slow to learn this confuser stuff... you know the saying, old dog-new tricks...
Forum: The Board 07-14-2020, 10:20 AM
Replies: 22
Views: 810
Posted By dan r
Re: lights the hard way

let's try this again...
junk from the scrap pile modified and adapted. a used teds alt conversion from a generator belt drove in a primary...
https://i.postimg.cc/jC27TTf4/KIMG0083-1-Copy.jpg...
Forum: The Board 07-12-2020, 09:06 AM
Replies: 22
Views: 810
Posted By dan r
Re: lights the hard way

oops, that didn't work. so much for me inserting pix, sorry.
Forum: The Board 07-12-2020, 07:33 AM
Replies: 22
Views: 810
Posted By dan r
lights the hard way

had to add an electrical system to a mag fired J model. so after a bit of "what if" and then digging in the junk piles and some machine time and...

...
Forum: The Board 06-03-2020, 08:52 AM
Replies: 4
Views: 511
Posted By dan r
Re: Plating in a neck correctly

If your plates let water in and trap it there, yes there will be a rust problem.
If your plates are fully welded and are sealed, no need to worry about sealers or rust prevention.

Oxygen is the...
Forum: The Board 06-03-2020, 08:46 AM
Replies: 11
Views: 1,005
Posted By dan r
Re: 1965 motor and tranny in a 58-64 frame

Yes, a complete engine, trans and primary from an e start will bolt into a kick only frame.
Trans and engine mounting is all the same.
The rear chain run is in the same location off set from...
Forum: The Board 06-01-2020, 11:29 AM
Replies: 11
Views: 1,005
Posted By dan r
Re: 1965 motor and tranny in a 58-64 frame

Think about what major changes and why to produce the first e start big twins.
Frame tubes were raised to clear a different oil tank and battery.
The oil tank was changed to gain room for the...
Forum: The Board 05-14-2020, 03:55 PM
Replies: 23
Views: 956
Posted By dan r
Re: Case stud question

Use a shop vac to suck any debris that will fall out of the bottom of the stud holes before, during and after. Yes there will be all sorts of bad things fall onto the flywheels when doing this. Be...
Forum: The Board 03-24-2020, 10:40 AM
Replies: 2
Views: 757
Posted By dan r
Re: Kn 93/ kn 74 s&s

Bore and stroke will be different.
Crankcases for the 93 are bored larger for the 3 5/8" bore cylinders, past that, they are the same.
Flywheels are different stroke but they both share the same...
Forum: The Board 03-24-2020, 07:59 AM
Replies: 16
Views: 1,461
Posted By dan r
Re: let's talk seats for bit

That bike was the inspiration I had to build mine. I didn't want a copy but my version of a like style. I wanted something of a super glide style before there were super glides.
Forum: The Board 03-24-2020, 07:30 AM
Replies: 16
Views: 1,461
Posted By dan r
Re: let's talk seats for bit

Very nice, thanks for showing that.
Forum: The Board 03-23-2020, 11:08 AM
Replies: 16
Views: 1,461
Posted By dan r
Re: let's talk seats for bit

Thanks guys.
Was looking at my fxr that has a hinge on one side and a latch on the other. Always liked that but it wouldn't adapt to well.

After looking here and then at the links 750Devo put...
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