Probably the wrong section, but oh well...:
Setting the scene, our SBF Merkur road racer has had a troubled season. Early on, a cracked rocker caused a pushrod to wear through a paper-thin intake port wall and blanket the track in smoke. After a lot of unrelated distractions, got the hole epoxied up and hit the track again. Two laps in the repair failed and it was bug-fogger time once more.
Fast forward to yesterday, with the offending port now securely sleeved and pressure checked. Six laps into qualifying, the dread vapours yet again start wisping out. The good news: it wasn't internal this time, just the vacuum check valve disassembling itself. Fortunately, the car has a full undertray, so most of the parts were recovered; all except the flapper disc itself. The crew chief's desperate search for a substitute ended with a bystander saying "Here, try this." and handing him a nickel (Canada's lowest value coin).
Perfect fit! Dialed in the desired 12" Hg. and upon shut down the engine held vacuum for more than a minute. Qualified third!
Nickel Fix
Moderator: Team
Nickel Fix
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Felix, qui potuit rerum cognscere causas.
Happy is he who can discover the cause of things.
Happy is he who can discover the cause of things.
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Re: Nickel Fix
As Smokey Y. would say "it only takes country smarts to fix it/figure it out" Cool story Bill. Mark H.
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Re: Nickel Fix
Was the broken rocker just a fluke,or are they on the edge?
You can cut a man's tongue from his mouth, but that does not mean he’s a liar, it just shows that you fear the truth he might speak about you!
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Re: Nickel Fix
There's a post on a Pontiac forum where some doofus riveted a pair of quarters over the press-in oil gallery plugs on the front of the block.
http://forums.maxperformanceinc.com/for ... p?t=833796
http://forums.maxperformanceinc.com/for ... p?t=833796
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Re: Nickel Fix
And pink taboot I guess they do not have any taps in that part of the country.Schurkey wrote: ↑Mon Sep 16, 2019 3:22 pm There's a post on a Pontiac forum where some doofus riveted a pair of quarters over the press-in oil gallery plugs on the front of the block.
http://forums.maxperformanceinc.com/for ... p?t=833796
Its always the same deal if it works no one cares till the freshen up and every eye in the world can see it
Real Race Cars Don't Have Doors
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Re: Nickel Fix
I seem to recall dimes being used in hydraulic lifters to convert them...?
https://www.semasan.com/breaking-news-archives?utm_campaign=DrivingForce_DF272&utm_content=SeeAllLeg
Re: Nickel Fix
Well, they had four seasons of 8,000 RPM shifts with 240# seat load on them but passed visual inspection shortly before the failure. Afterwards, the other 15 Zyglowed OK, but I'd have to say they are on borrowed time at this point.
Felix, qui potuit rerum cognscere causas.
Happy is he who can discover the cause of things.
Happy is he who can discover the cause of things.
Re: Nickel Fix
Local shop had me rebuild his black and decker BB stone holder, pilot "wore through" somehow.
When I got it apart, then it was clear to see, the hardened thrust shim part..... had been replaced with a silver dollar.
I replaced it with a OHC lifter shim
When I got it apart, then it was clear to see, the hardened thrust shim part..... had been replaced with a silver dollar.
I replaced it with a OHC lifter shim