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Search: Posts Made By: Jumpjets
Showing results 1 to 25 of 29
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Forum: Do It Yourself, Boating on a Budget
03-17-2025, 10:30 PM
Replies: 16
Views: 2,407
Posted By Jumpjets

It was $40. I sent it in today. If nothing else,...

It was $40. I sent it in today. If nothing else, it'll keep me entertained and satisfy my curiosity. I'm moving from CA to Houston TX in 4 weeks. There's no sense in pulling the motor right now. I'll...
Forum: Do It Yourself, Boating on a Budget
03-17-2025, 10:25 AM
Replies: 16
Views: 2,407
Posted By Jumpjets

I’m sending off an oil sample today to try & find...

I’m sending off an oil sample today to try & find out what broke. I’m mentally prepared to yank this motor and rebuild it.
Forum: Do It Yourself, Boating on a Budget
03-16-2025, 07:36 PM
Replies: 16
Views: 2,407
Posted By Jumpjets

I did not personally build them. They were built...

I did not personally build them. They were built by a performance shop in Washington, NC in 2016. I bought the boat in 2022. I already asked the previous owner, and there are no blueprints or tech...
Forum: Do It Yourself, Boating on a Budget
03-16-2025, 07:01 PM
Replies: 16
Views: 2,407
Posted By Jumpjets

Thanks for all the quick replies! I poured some...

Thanks for all the quick replies!
I poured some oil out of the old oil filter, and it had more glitter than a stripper's eyeshadow. I was hoping that the oil filter was clogged, and that was causing...
Forum: Do It Yourself, Boating on a Budget
03-15-2025, 10:19 PM
Replies: 16
Views: 2,407
Posted By Jumpjets

Sudden oil pressure decrease

Looking for some pointers!

I have twin 454s with 15 hours on them. They both pushed identical oil pressure at all times. After a few WOT pulls at havasu this weekend, the right motor dropped to...
Forum: Scarab
12-07-2024, 11:02 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

Haven’t posted in a while. I fixed the bad...

Haven’t posted in a while. I fixed the bad thermostat, put in fresh spark plugs, and adjusted carburetor idle. Both engines are reliable and don’t stall anymore. I did another Havasu trip in October....
Forum: Scarab
05-20-2024, 11:31 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

After about a year of work, I did a sea trial...

After about a year of work, I did a sea trial today at Lake Havasu. Got 62mph. It cruises very well at 3000rpm and 45 mph.
One engine runs cool, so I think the T-stat might be stuck open.
One...
Forum: Scarab
04-10-2024, 12:36 AM
Replies: 45
Views: 45,605
Posted By Jumpjets

Engines both RUN! I ran each one for ~30 minutes...

Engines both RUN! I ran each one for ~30 minutes to op-check them. After filling the quadrajet carb bowls, they fired right up. Each one builds about 75psi oil pressure. One of them won’t register...
Forum: Scarab
04-10-2024, 12:31 AM
Replies: 45
Views: 45,605
Posted By Jumpjets

https://cimg6.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg6.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x1504/img_3363_6465e04ebc098fca9a48a940d4f2e52545e7e408.jpeg
New, functional winch installed on the trailer. ...
Forum: Western US/Lake Havasu
02-22-2024, 11:22 PM
Replies: 5
Views: 3,126
Posted By Jumpjets

These are a few months old. It’s in a little...

These are a few months old. It’s in a little better shape now. Still have some work left to do
...
Forum: Western US/Lake Havasu
02-19-2024, 10:57 PM
Replies: 5
Views: 3,126
Posted By Jumpjets

Havasu first timer tips?

I live in Ridgecrest CA, and I’m finishing up a resto/light rebuild on an 86 Scarab II. I’d like to give the boat a sea trial this spring. I think Havasu is my best choice for a safe place to sea...
Forum: Scarab
02-19-2024, 10:46 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

Long time without posting. I’ve got 95% of the...

Long time without posting. I’ve got 95% of the wiring done. I used a couple ABS plastic sheets for the helm, and a set of SIERRA AMEGA gauges. The autometer set was way out of my budget. The switch...
Forum: Scarab
12-25-2023, 07:35 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

https://cimg6.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg6.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/750x1334/img_3258_8d8adfd467bda02ce0cc0ed73210f98fae9302c8.png


I dropped this screw/bolt/pin that connects the drive tiller arm to the...
Forum: Scarab
10-08-2023, 11:04 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

https://cimg3.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg3.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x1504/img_3098_9167a848e8f7121e6864a24d5780206810f0628d.jpeg
After gutting a half mile of useless & broken wires out of the boat,...
Forum: Scarab
09-16-2023, 10:25 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

https://cimg4.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg4.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x1504/img_3068_a7c14c3bf54604c4415d6d725b8e6af87f1b871e.jpeg
I also finished “rebuilding” my compass today. These things are like $300...
Forum: Scarab
09-16-2023, 10:13 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

I’ve been in Europe for a while so the project...

I’ve been in Europe for a while so the project sat for a month. I got to dig into it today.
...
Forum: Scarab
08-06-2023, 10:24 AM
Replies: 45
Views: 45,605
Posted By Jumpjets

https://cimg0.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg0.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x1504/img_2981_c73862b84a9d881b88ed95daae23101b90b97a77.jpeg
Helm. Only the tachs function. I pulled all this stuff out yesterday....
Forum: Scarab
08-06-2023, 10:18 AM
Replies: 45
Views: 45,605
Posted By Jumpjets

https://cimg6.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg6.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x1504/img_2985_80ca331ed51bdbfc428bb14ba6af7e822ea7a3d4.jpeg
Twin 454s. They have crane gold rocker arms. I don’t know too much else...
Forum: Scarab
08-06-2023, 10:11 AM
Replies: 45
Views: 45,605
Posted By Jumpjets

https://cimg6.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg6.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x1504/img_2974_2e01e41d7c4cae72b70afcda7410e8a4c1f7d260.jpeg
The exterior is in better shape than I thought. The top white area needs...
Forum: Scarab
08-06-2023, 10:05 AM
Replies: 45
Views: 45,605
Posted By Jumpjets

I spent the day yesterday gutting wires out of...

I spent the day yesterday gutting wires out of the dash and taking the helm apart. I tried to cut as few wires as I could. It looks like it was mostly factory original wiring, but there were some...
Forum: Scarab
08-05-2023, 07:58 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

As far as I know, everything is 1986.

As far as I know, everything is 1986.
Forum: Scarab
08-05-2023, 05:43 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

I need to spam the forum with 3 more posts, then...

I need to spam the forum with 3 more posts, then I’ll earn DM and photo posting privileges privileges.

My engines are mercruiser 454s. They are custom built, but they have factory-looking...
Forum: Scarab
08-05-2023, 03:55 PM
Replies: 45
Views: 45,605
Posted By Jumpjets

Yup it’s definitely the velvet drive. Thank you...

Yup it’s definitely the velvet drive. Thank you very much sir! Id be happy to take a copy of a service manual if you have one.

My next order of business is figuring out why the Stbd engine won’t...
Forum: Scarab
08-05-2023, 11:49 AM
Replies: 45
Views: 45,605
Posted By Jumpjets

I can’t post pictures yet, I need a few more...

I can’t post pictures yet, I need a few more posts. I looked at the trans this morning. They each have a T-handle cap with a dipstick on the top port side of the case. Both are filled with ATF.
...
Forum: Scarab
08-04-2023, 11:17 AM
Replies: 45
Views: 45,605
Posted By Jumpjets

Can anyone post a link or video about fluid...

Can anyone post a link or video about fluid change and servicing the transmission? I know this thing has either MERCTRANS or VELVETDRIVES in it. I’m unsure how to tell which one and how to service...
Showing results 1 to 25 of 29
 
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