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Forum: Exhaust System

09-12-2018, 04:46 PM

Replies: 13

Exhaust replacement

Views: 3,777

Posted By rveldman1

Grampian 30

Yes, a wonderful grampian 30std

Forum: Exhaust System

09-12-2018, 12:15 PM

Replies: 13

Exhaust replacement

Views: 3,777

Posted By rveldman1

My problem

I am trying to find out why my plugs foul in less than 8 hrs of running. Identical Black sooty fouling on all 4 cyl .
Vacuum at idle is 18-20, and goes to zero at 3/4 throttle. Cyl compression is...

Forum: Exhaust System

09-12-2018, 12:08 PM

Replies: 13

Exhaust replacement

Views: 3,777

Posted By rveldman1

Thank you

The brown thing is from a used engine I aquired that would not run for longer than 30 min. Perhaps the brown thing was it's problem.
I am trying to reduce back pressure in the exhaust system. Moyer...

Forum: Exhaust System

09-10-2018, 06:19 PM

Replies: 13

Exhaust replacement

Views: 3,777

Posted By rveldman1

Exhaust replacement

I obviously need to re-do the exhaust on my 1974 Grampian. Question is: should I duplicate the riser (I can add 3 inches to height) and eliminate water muffler or use the brown thing?
13723

Forum: Drive Train / Propellers

01-20-2018, 09:59 AM

Replies: 7

Want to trade? Martec folding prop for indigo 3 blade?

Views: 3,302

Posted By rveldman1

Martec 7/8, indigo 1"

Martec is 12x8, 7/8 shaft

Forum: Drive Train / Propellers

01-20-2018, 09:56 AM

Replies: 7

Want to trade? Martec folding prop for indigo 3 blade?

Views: 3,302

Posted By rveldman1

Martec 7/8, indigo 1"

I have a 7/8 martec folding on my Grampian 30 that I am planning to remove this spring. My days of racing are also over.
I also have three 1" shafts and one Indigo 1" three blade prop all in...

Forum: Exhaust System

04-22-2013, 08:44 PM

Replies: 3

Water Lift Stand Pipe Problem

Views: 2,396

Posted By rveldman1

Water Lift Stand Pipe Problem

Very strange but....

We sail a 1974 Grampian 30 with the original Atomic 4 power unit. After five years of ownership, we had only one complaint - whenever we heeled over 30 degrees (rail in the...

Forum: Grampian

10-09-2012, 09:05 PM

Replies: 9

Is Anybody Out There....

Views: 11,439

Posted By rveldman1

Grampian 30, 1974

Yes, Grampian owners are out here. We sail a Grampian 30 Std every weekend, and race it every other weekend... Has an extremely reliable atomic 4 powering it!

Russ Veldman and Gayle McPherson

Showing results 1 to 8 of 8

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