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Search: Posts Made By: Insane87
Showing results 1 to 25 of 33
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Forum: General Q & A
05-24-2026, 11:22 AM
Replies: 35
Views: 2,856
Posted By Insane87

Hi guys Quick update as well as some...

Hi guys

Quick update as well as some valuable information.

Obviously there has to be a little hick up in the process.

When I tightened the upper pinion nut with 120 nm, as mentioned in the...
Forum: General Q & A
05-10-2026, 05:45 AM
Replies: 35
Views: 2,856
Posted By Insane87

Hi guys Thank you for your feedback! I...

Hi guys

Thank you for your feedback!

I kept scanning through the internet but unfortunately I did not get any further regarding the best repair strategy for the steel sleeve/steel cup...
Forum: General Q & A
05-03-2026, 10:44 AM
Replies: 35
Views: 2,856
Posted By Insane87

Hi Here are three older pictures. One from...

Hi

Here are three older pictures. One from the previous owner and two while I was cleaning it after the purchase.
...
Forum: General Q & A
05-03-2026, 07:30 AM
Replies: 35
Views: 2,856
Posted By Insane87

Thank you for the feedback! To prevent me...

Thank you for the feedback!

To prevent me from causing further damage I kept reading before lapping.
In one of the articles it was said that Volvo experimented during the production time of the...
Forum: General Q & A
05-01-2026, 06:57 AM
Replies: 35
Views: 2,856
Posted By Insane87

Thank you very much! Unfortunately the...

Thank you very much! Unfortunately the identification number on the little metal plate corroded away so I'm not 100% sure what DP version I have.
Have to spend some time going through the...
Forum: General Q & A
04-27-2026, 08:10 PM
Replies: 35
Views: 2,856
Posted By Insane87

Hi Haha now you made me wonder if I screwed up...

Hi
Haha now you made me wonder if I screwed up with my decision to take it apart. :D

Thank you for asking your mechanics about their opinion. That's much appreciated!

Could you eventually also...
Forum: General Q & A
04-26-2026, 06:58 PM
Replies: 35
Views: 2,856
Posted By Insane87

Hi guys Since work got very busy in the...

Hi guys

Since work got very busy in the months, I now have all the parts to replace the clutch cone.

So to do the lapping, I disassembled the upper sterndrive housing.

What I noticed is that...
Forum: General Q & A
09-13-2025, 07:49 AM
Replies: 35
Views: 2,856
Posted By Insane87

Thank you very much guys! I got red gear...

Thank you very much guys!

I got red gear marking paste.
Waiting for the lapping compound to be delivered.

Will keep you updated about the progress.
Once I take it apart, I'll also try to take...
Forum: General Q & A
09-01-2025, 06:23 PM
Replies: 35
Views: 2,856
Posted By Insane87

Thank you very much for your feedback. The old...

Thank you very much for your feedback.
The old cone and the new one are both steel.



That is very interesting, thank you!
Do you know what coating there is on the cone or how to identify if...
Forum: General Q & A
08-31-2025, 07:55 AM
Replies: 0
Views: 273
Posted By Insane87

AQ290 DP Upper Shaft Movement

Hi

Recently I have replaced the clutch cone of a AQ290 DP drive.

I have noticed that the upper gear shaft was loose and coul be pulled up for an inch or so.
This meant that the upper needle...
Forum: General Q & A
08-31-2025, 07:27 AM
Replies: 35
Views: 2,856
Posted By Insane87

Hi guys Thank you for the replies. I...

Hi guys

Thank you for the replies.

I have changed the clutch cone.
The old one definitely felt worn and "flat" compared to the new one.

What I noticed is that the gear set in which the cone...
Forum: General Q & A
10-08-2024, 05:24 PM
Replies: 35
Views: 2,856
Posted By Insane87

Not under my ownership which is 3 years now. ...

Not under my ownership which is 3 years now.
Considering that my boat is from 1990 I’d assume that it was apart at some point.
Forum: General Q & A
10-06-2024, 04:26 PM
Replies: 35
Views: 2,856
Posted By Insane87

I see. Do you think the clutch cone would get...

I see.
Do you think the clutch cone would get stuck when being in gear for 10 minutes under load?
It shouldn’t slip then.

My problem appeared after being in forward gear for some time.
Forum: General Q & A
10-03-2024, 07:16 AM
Replies: 35
Views: 2,856
Posted By Insane87

Question AQ290 DP Shifting to Neutral Problem

Hi guys

I recently experienced that I could not shift my Volve Penta AQ 290 DP from forward drive back to neutral.

When being in the marina shifting from neutral to forward and rearward drive...
Forum: General Q & A
12-20-2023, 01:24 PM
Replies: 3
Views: 1,784
Posted By Insane87

43 psi Fuel Pressure Regulator

Hi

I have converted my Mercruiser 350 Mag MPI to a fuel return line system.

The original dead end fuel line system has two pressure reluators (one at the pump/fuel cooler and one in the fuel...
Forum: General Q & A
07-01-2021, 05:11 PM
Replies: 6
Views: 2,249
Posted By Insane87

Yes that's what I thought as well but it seems...

Yes that's what I thought as well but it seems like that all power steering pump pulleys are bigger.

Does anybody know what belt length I'd need in case I swap to a crankshaft mounted Johnson...
Forum: General Q & A
07-01-2021, 04:02 AM
Replies: 6
Views: 2,249
Posted By Insane87

Hi guys I have the ribbed serpentine belt...

Hi guys

I have the ribbed serpentine belt fitted, so the sea water pump sits next to the crankshaft.

Changing it to a crankshaft mounted one could work but then I don't know what belt length yo...
Forum: General Q & A
06-30-2021, 06:46 AM
Replies: 16
Views: 5,647
Posted By Insane87

Cheers TomZ! I will report once it is...

Cheers TomZ!

I will report once it is running!
If that works I only need a smaller sea water pump pulley and it is getting back into the engine bay.

Martin
Forum: General Q & A
06-30-2021, 06:44 AM
Replies: 6
Views: 2,249
Posted By Insane87

Question Mercruiser 350 Mag MPI - Smaller Sea Water Pump Pulley

Hi guys

Doe anybody know if there is a smaller sea water pump pulley available for my Mercruiser 350 Mag MPI?
I require a smaller one due to an engine swap I'm doing.

The original one does...
Forum: General Q & A
06-30-2021, 06:29 AM
Replies: 16
Views: 5,647
Posted By Insane87

Hi I took my flywheel off last night. It...

Hi

I took my flywheel off last night.
It does look like external balance.

https://ibb.co/N9t5fpM

Last night I also ordered the external balanced 153t flywheel which TomZ suggested. Part...
Forum: General Q & A
06-29-2021, 11:49 AM
Replies: 16
Views: 5,647
Posted By Insane87

It is a difficult one cause I read a lot that...

It is a difficult one cause I read a lot that around 1987 or late 80s a few changes to the engine blocks, seal and crankshafts have been introduced. Apparently this is also a time where a split...
Forum: General Q & A
06-29-2021, 10:09 AM
Replies: 16
Views: 5,647
Posted By Insane87

Got a boat with a damaged engine. Had the chance...

Got a boat with a damaged engine. Had the chance to get the 350 Mag MPI for free. I think it will be an improvement compared to the 454 carb Mark 4 carb engine.

The boat has got a Volvo Penta...
Forum: General Q & A
06-29-2021, 08:40 AM
Replies: 16
Views: 5,647
Posted By Insane87

I'm going to take it off tonight and upload a...

I'm going to take it off tonight and upload a picture from both sides.

Martin
Forum: General Q & A
06-29-2021, 08:18 AM
Replies: 16
Views: 5,647
Posted By Insane87

Hi TomZ Are you sure? I just checked the...

Hi TomZ

Are you sure?
I just checked the backside of the original flywheel.
It does not have a counter weight.
I have also read that external/internal balancing does not depend on 1-piece or...
Forum: General Q & A
06-28-2021, 07:13 AM
Replies: 16
Views: 5,647
Posted By Insane87

Question Mercruiser 350 Mag MPI 153 Teeth Flywheel Swap

Hi guys

I need to fit a 153 teeth flywheel (12.75") to my Mercruiser 350 Mag MPI.
The current flywheel has a diameter of 14" which needs to be replaced due to the engine swap I'm doing.

Now...
Showing results 1 to 25 of 33
 
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