Search found 824 matches

by hoodeng
Tue Mar 05, 2024 6:22 pm
Forum: Engine Tech
Topic: Thinner piston pins and moving pin up in the piston
Replies: 12
Views: 586

Re: Thinner piston pins and moving pin up in the piston

Instead of reducing the pin diameter, moving the pin up in the piston is going to result in no loss of strength or gain of weight. Running the pin up into the oil ring groove has been done successfully for a number of years. With a raised pin, after the pin has been assembled into the piston, pin re...
by hoodeng
Wed Jan 24, 2024 6:31 pm
Forum: Engine Tech
Topic: Valve stem off center. 
Replies: 9
Views: 865

Re: Valve stem off center. 

Valve action is dynamic not static. When a valve seats in a running engine it does not place itself gently on the seat in a manner that with slight lateral load biases cause it to leak. It pretty much slaps shut and self centralizes with the assistance of springs and inertia. The forces at play in a...
by hoodeng
Wed Jan 10, 2024 6:14 pm
Forum: General Tech
Topic: Deutsch Connector Tips
Replies: 19
Views: 26583

Re: Deutsch Connector Tips

As has Allen has pointed out, making the female receptacles the active side of the harness is what is commonly used in the make of vehicle i am familiar with that uses DTP.

Deutsch connectors are quite robust, easy to assemble and easy to maintain.

Excellent link Dan.
by hoodeng
Wed Dec 27, 2023 5:54 pm
Forum: Engine Tech
Topic: KB 350 119 domed piston volume.
Replies: 3
Views: 900

Re: KB 350 119 domed piston volume.

Yes, crevice volume is included by some manufacturers, some give a pure dome volume which i see as the most common.

Just remember, when adjusting compression by machining the piston crown that each cc is around 2.7g, this saves a lot of wetting out.
by hoodeng
Wed Dec 27, 2023 5:48 pm
Forum: Engine Tech
Topic: Metal clad valve seal removal
Replies: 14
Views: 4740

Re: Metal clad valve seal removal

Harley V Rod.
by hoodeng
Tue Dec 26, 2023 10:33 pm
Forum: Engine Tech
Topic: Metal clad valve seal removal
Replies: 14
Views: 4740

Re: Metal clad valve seal removal

That works fine if you can get to the side of the seal. Not so good with cam on bucket.
by hoodeng
Tue Dec 26, 2023 6:11 pm
Forum: Engine Tech
Topic: Metal clad valve seal removal
Replies: 14
Views: 4740

Re: Metal clad valve seal removal

As Bent said, burn the shell with a map gas gun. This works on seals that have the sealing media continue under the metal shell. Heat just enough to collapse the lock on the guide, if you continue burning you can end up attaching some of the molten seal to the guide, this is a pig to remove especial...
by hoodeng
Sat Dec 16, 2023 6:43 pm
Forum: Vintage/Classic/Historical Engine Tech
Topic: Old school ring seating trick ??
Replies: 20
Views: 4858

Re: Old school ring seating trick ??

IN the early seventies where i worked we had a number of early Case W7 & W9 loaders, the operators would idle these things for ages as they thought the bosses were checking the hour meters to see if they had been on the job. Periodically these engines would start to use oil at an abnormal rate, ...
by hoodeng
Wed Dec 13, 2023 6:20 pm
Forum: Engine Tech
Topic: Lightweight spring retainer
Replies: 10
Views: 3913

Re: Lightweight spring retainer

Dual effects for the S&S set, one, to reduce inertia, the other, as quoted to introduce lubrication to a triple wound interference spring set.
by hoodeng
Tue Dec 12, 2023 9:45 pm
Forum: Engine Tech
Topic: Lightweight spring retainer
Replies: 10
Views: 3913

Re: Lightweight spring retainer

S&S provided this style for years without issue.
If the manufacturer has done a stress analysis that shows them to be sound with their intended use there should be no issue with them.
by hoodeng
Mon Dec 04, 2023 12:40 am
Forum: Vintage/Classic/Historical Engine Tech
Topic: Old school ring seating trick ??
Replies: 20
Views: 4858

Re: Old school ring seating trick ??

I have been a stickler for using the correct grade of Loctite in prescribed applications since i was an apprentice. Some years back a person i know who always thought i was bullshit fussy on fasteners, tapers etc told me all that fancy stuff i was using was now redundant as he had been shown a bette...
by hoodeng
Wed Nov 29, 2023 6:26 pm
Forum: Engine Tech
Topic: Roller Rocker tip rebuild/replaced HELP!
Replies: 13
Views: 1996

Re: Roller Rocker tip rebuild/replaced HELP!

riv187 wrote: Mon Nov 27, 2023 10:40 am
riv187 wrote: Thu Nov 23, 2023 9:59 am Thanks,,I'll find out asap.
hoodeng wrote: Wed Nov 22, 2023 5:55 pm Try T&D Machine products. Carson City NV.
No, they only rebuld their own rockers...
Ask them what pin and roller dimensions they use.
by hoodeng
Wed Nov 22, 2023 5:55 pm
Forum: Engine Tech
Topic: Roller Rocker tip rebuild/replaced HELP!
Replies: 13
Views: 1996

Re: Roller Rocker tip rebuild/replaced HELP!

Try T&D Machine products. Carson City NV.
by hoodeng
Wed Sep 27, 2023 3:25 am
Forum: Engine Tech
Topic: Soft Valve Tips?
Replies: 19
Views: 2163

Re: Soft Valve Tips?

If the tips were faced were they done stroking cross ways or rotated on the facing stone? There is not typically a running condition that will make rotary skid marks. What is the peppering marks on the last retainer and collets? Not necessarily on the intakes. On heads with same seat spring loading ...
by hoodeng
Tue Sep 26, 2023 10:16 pm
Forum: Chassis / Suspension / Body
Topic: Brake shoe fitment
Replies: 14
Views: 2407

Re: Brake shoe fitment

Brake shoe flex is pedal travel.

Are you using a line lock?

Also, if the brakes barely hold or actually don't hold the car staging, what are they doing in the top end?