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Search found 903 matches

by dwilliams
Thu Mar 26, 2020 4:29 am
Forum: Engine Tech
Topic: I am 84 YO., and building my last SBC 400 and will be over
Replies: 24
Views: 1803

Re: I am 84 YO., and building my last SBC 400 and will be over

I've listened to all the exposition about bearing speed, oil heating, frictional losses, yadda yadda, but I've also taken apart a lot of 400 cores and never noticed any unusual main bearing issues, and I freshened up many 400 and 375 dirt track motors back when useable factory blocks were still a th...
by dwilliams
Thu Mar 26, 2020 4:21 am
Forum: Engine Tech
Topic: 5 bolt SBF rear pattern blueprint
Replies: 13
Views: 734

Re: 5 bolt SBF rear pattern blueprint

Many of those dimensions were fractions... Lots of engineering and machining in the USA operated in fractional inches until WWI, when several Detroit automakers and other prime contractors petitioned the War Department to standardize on decimal inches to make dealing with subcontractors easier. Mos...
by dwilliams
Thu Mar 26, 2020 4:06 am
Forum: Engine Tech
Topic: Lash caps thickness
Replies: 7
Views: 480

Re: Lash caps thickness

That page in my notebook is dated 1996, which seems like just the other day... for 11/32 stems: .060 Bill Mitchell .080 Sig Erson .050 Chet Herbert .080 Comp Cams .060 Crane .080 Clay Smith .050 Crower .060 Lunati .060 Ultradyne .080 Norris .080 Del West .080 Manley .080 Precision Products .062 Wolv...
by dwilliams
Thu Mar 26, 2020 4:00 am
Forum: Engine Tech
Topic: aeration from scavenge pumps?
Replies: 8
Views: 374

aeration from scavenge pumps?

Does anyone have any suggestions for sizing scavenge pumps vs. pressure pumps? Most of the dry sump systems I've seen have a single pressure stage and three, four, or five scavenge stages, often the same size as the pressure stage. So the scavenge pumps are mostly churning air. Is this contributing ...
by dwilliams
Wed Dec 11, 2019 5:09 pm
Forum: Engine Tech
Topic: New distributor gear...no roll pin holes??
Replies: 24
Views: 1417

Re: New distributor gear...no roll pin holes??

Some distributors have what look like ordinary hardware-store roll pins. Others come with a "spirol" (brand name) pin that's a coiled-up piece of spring steel instead of a split tube. The spirol pins are the ones Ford recommended back in the Muscle Parts era.
by dwilliams
Thu Nov 07, 2019 11:53 am
Forum: General Tech
Topic: Heavy duty engine degreaser
Replies: 15
Views: 1189

Re: Heavy duty engine degreaser

A cheap Harbor Freight pressure washer does wonders for removing general crud. For $79, it doesn't take long before it pays for itself.
by dwilliams
Thu Nov 07, 2019 11:45 am
Forum: Engine Tech
Topic: another balance question
Replies: 11
Views: 788

Re: another balance question

"Don't worry, be happy." The balance machine can pick up 17g, but it won't make any difference when running.

If you're concerned about the pins call the manufacturer and ask their tech guys.
by dwilliams
Thu Nov 07, 2019 11:40 am
Forum: Engine Tech
Topic: Information on Goodson tool
Replies: 10
Views: 1171

Re: Information on Goodson tool

I made a fixture that kinda-sorta-maybe looks like that; I use it on the mill to narrow connecting rod big ends. But I don't think that's what the tool in the picture is for. Looks like someone spent some time making it, though.
by dwilliams
Thu Nov 07, 2019 11:37 am
Forum: Engine Tech
Topic: Straightened crankshaft revisited
Replies: 15
Views: 1007

Re: Straightened crankshaft revisited

There is such a thing as a special crank straightening rig, that may have hydraulics....so, "it's a press", but, made for the job, made to not get in your way, I wound up with a forged steel 231 Buick crank that had about a .005" runout on the crank snout. I determined this was due to the crank bei...
by dwilliams
Tue Aug 27, 2019 11:33 am
Forum: Engine Tech
Topic: Turning an sB2 into a V6
Replies: 4
Views: 489

Re: Turning an sB2 into a V6

Back in the '80s a local shop class instructor turned a 455 Olds into a V4 for some oddball racing class. He removed every other piston and machined some two-piece steel bobweights to bolt to the rod journals to maintain balance. I know he had it running, but I never heard how it did at the track.
by dwilliams
Tue Aug 27, 2019 11:00 am
Forum: Engine Tech
Topic: pressed in pins (rod temperature)
Replies: 35
Views: 1586

Re: pressed in pins (rod temperature)

4vpc wrote:
Sun Aug 25, 2019 6:55 pm
Yet factory engines have blue ended rods in them...
Goodson used to sell some stuff you could dip the small ends into, that was supposed to remove the blue...
by dwilliams
Tue Aug 27, 2019 10:57 am
Forum: Engine Tech
Topic: pressed in pins (rod temperature)
Replies: 35
Views: 1586

Re: pressed in pins (rod temperature)

Using the above methods I don't have any do overs with the exception of having brain fade and installing a piston on backwards. arrgh Un-possible! I thought I was the only one who did that... I now use a large laundry marker color the correct sides of the rods and pistons in their matched pairs, ma...
by dwilliams
Thu Aug 22, 2019 12:42 pm
Forum: Offtopic Forum
Topic: Sad
Replies: 17
Views: 1511

Re: Sad

Around here the scam is, if your bill is $23 and you hand the server two twenties, you get to go looking for them, at which point they act surprised that you didn't intend to give them a $17 tip on a $23 check. The other, usually done at the register, is "round change down to the nearest dollar." I ...
by dwilliams
Thu Aug 22, 2019 12:37 pm
Forum: Offtopic Forum
Topic: Whatever happened to Joe 90?
Replies: 6
Views: 2727

Re: Whatever happened to Joe 90?

Interesting. The quoted text includes an ad for "mobile casino" that's not in the original.
by dwilliams
Thu Aug 22, 2019 12:21 pm
Forum: Engine Tech
Topic: pressed in pins (rod temperature)
Replies: 35
Views: 1586

Re: pressed in pins (rod temperature)

Ford's factory manuals wanted the pins pressed in while cold. There were a number of different piston holding fixtures to keep from crushing the skirts while doing so. For OEM Ford pistons only, of course. I was taught "bright red with the shop door closed", and never had any trouble. Though I did f...