Speed-Talk is running on www.Speed-Talk.com

IMPORTANT: Update your bookmarks to https://www.speed-talk.com/forum/
(Right-click the URL and select "Bookmark this link")

Search found 496 matches

by BillK
Thu May 13, 2021 12:36 pm
Forum: Engine Tech
Topic: SBC bearing question
Replies: 6
Views: 211

Re: SBC bearing question

If they were the performance bearings the "larger" ones would have an "X" in the part number for extra clearance. For instance the rods would be CB663HXN Is there a list with those partnumbers and the respective sizes? Or is there some logic in the partnumbers? They are all in the Clevite bearing c...
by BillK
Thu May 13, 2021 6:54 am
Forum: Engine Tech
Topic: SBC bearing question
Replies: 6
Views: 211

Re: SBC bearing question

If they were the performance bearings the "larger" ones would have an "X" in the part number for extra clearance. For instance the rods would be CB663HXN
by BillK
Tue May 11, 2021 10:12 am
Forum: Engine Tech
Topic: Head heating required when changing bronze valve guides?
Replies: 8
Views: 426

Re: Head heating required when changing bronze valve guides?

Not an expert by any means, but it depends on how easy they come out. I have a guide tool that fits an air hammer, if I blurp it and the guides move then I take them out cold. If they are stubborn, then I warm the head up a little. Freeze the guides overnight, and warm the head a little to install....
by BillK
Mon May 10, 2021 3:25 pm
Forum: Engine Tech
Topic: Reducing the pin hole size of a press fit rod
Replies: 39
Views: 916

Re: Reducing the pin hole size of a press fit rod

SS, I have actually seen two engines in the last 30 years that were like that. They were both from a big rebuilder and I figured they did it to save some rods that were messed up. Both times they just had a "normal" rod bushing pressed in. They had apparently been running that way for many years so ...
by BillK
Fri May 07, 2021 12:11 pm
Forum: Engine Tech
Topic: Flex hone Rotax 787
Replies: 7
Views: 326

Re: Flex hone Rotax 787

I cant really answer your question but personally I cant imagine a "ball" type hone working worth a darn in a 2 stroke with the ports in the bore.
by BillK
Wed May 05, 2021 9:04 am
Forum: Engine Tech
Topic: Bmw N20 main & rod bolt torque?
Replies: 2
Views: 194

Re: Bmw N20 main & rod bolt torque?

ke,
My AERA software says:

Main Bearing Cap
(STEEL BOLTS 10.9) 15 FT/LBS, + 90° - USE NEW BOLTS

Connecting Rod
15 FT/LBS, + 70°, + 70° - USE NEW BOLTS, WASH & OIL

The AERA data is mostly from factory information so that should be correct.
by BillK
Tue May 04, 2021 12:11 pm
Forum: Engine Tech
Topic: externally balanced 89 Chevy flywheel interchangeability
Replies: 16
Views: 573

Re: externally balanced 89 Chevy flywheel interchangeability

I just want to mention that unless you actually do balancing guys dont realize how much this stuff varies even from the factory. Ford is absolutely terrible, GM isnt too bad. Some of the worst aftermarket stuff is also the cheapest so "you get what you pay for" definitely applies here. But you also ...
by BillK
Tue May 04, 2021 6:46 am
Forum: Engine Tech
Topic: externally balanced 89 Chevy flywheel interchangeability
Replies: 16
Views: 573

Re: externally balanced 89 Chevy flywheel interchangeability

I don't know what the actual offset weight for these one-piece-seal cranks is supposed to be in inch-ounces or whatever. I just know that both my aftermarket flexplates were nowhere close to an OEM flexplate. Do you remember what brand they were ? I have been using Pioneer ones and they all have ch...
by BillK
Fri Apr 30, 2021 12:42 pm
Forum: Shop Equipment - For Sale or Wanted
Topic: Parts Catalog's
Replies: 6
Views: 201

Re: Parts Catalog's

Freager, All of the major parts manufacturers have their catalogs available as PDF downloads. I have most of them downloaded and in a folder on my computer. Very easy to look at that way. They are all getting away from printed catalogs. If you are working on modern engines the catalogs are almost ou...
by BillK
Thu Apr 29, 2021 10:58 pm
Forum: Engine Tech
Topic: externally balanced 89 Chevy flywheel interchangeability
Replies: 16
Views: 573

Re: externally balanced 89 Chevy flywheel interchangeability

BG, I know you are in Belgium and not sure what resources you have as far as balance shops but if you want to be absolutely sure when you get your new flywheel have it checked against the flexplate that came with the engine. It takes less than 15 minutes to check it and see if it is the same or not.
by BillK
Thu Apr 29, 2021 10:55 pm
Forum: Engine Tech
Topic: externally balanced 89 Chevy flywheel interchangeability
Replies: 16
Views: 573

Re: externally balanced 89 Chevy flywheel interchangeability

When checked the difference was 253 grams. I have to ask . . . . what flywheel part number was it that was off that much ?????? I have probably balanced at least a hundred 1pc seal assemblies with all sorts of different flywheels and flexplates and have never had one off more than 10-15 grams. I ha...
by BillK
Thu Apr 29, 2021 2:35 pm
Forum: Engine Tech
Topic: externally balanced 89 Chevy flywheel interchangeability
Replies: 16
Views: 573

Re: externally balanced 89 Chevy flywheel interchangeability

If the flywheel is for a 1 pc seal block it should be fine. None of them are perfect but they are all supposed to be within the factory tolerance which is fairly broad. By the way, the crank is only externally balanced in the rear. The front is still neutral balance like most other small blocks.
by BillK
Thu Apr 29, 2021 9:43 am
Forum: Engine Tech
Topic: LS oiling problem
Replies: 15
Views: 836

Re: LS oiling problem

Jimmy,
I still think you need to pull the filter and crank it for a few seconds to see if it makes a mess. That would narrow it down quite a bit :) Forgot to ask, can you pull the pan with it in the car ?
by BillK
Thu Apr 29, 2021 6:43 am
Forum: Engine Tech
Topic: 4779 carb replacement
Replies: 19
Views: 954

Re: 4779 carb replacement

I would call AED and see what they say. They might be able to make yours work. If not they will sell you what you need. Great guys to deal with and great carburetors.

https://www.aedperformance.com/
by BillK
Mon Apr 26, 2021 7:18 am
Forum: Engine Tech
Topic: Timing chain wear on engines with non-adjustable ignition timing
Replies: 27
Views: 741

Re: Timing chain wear on engines with non-adjustable ignition timing

Travis, I cant answer you exact question but if it helps any my 99 Tahoe is getting ready to turn 280K miles with the engine never having been touched and it still runs basically the same as it did when new. The original plugs rotor cap and wires were not changed until about a year ago and probably ...