Swapping my 454 with a 502 in a 22 Scarab
 

Tore the Scarab apart last night... wow... when you pull all the panels off you see what a shotty job they do putting it together... sloppy cuts in the fiberglass...etc.

Once I have the engine pulled, I will swap the accessories over to my new 502... I have to install the Trim tabs and the Hydro Steering. To my suprise I have rack and pinion steering (So I gues that is a partial internal hydraulic)... Still waiting on the Holley 850 and intake, exhaust manifold will be purchased this weekend.

First question:
The engine I bought was balanced and built without the flywheel that was origianaly on the boat... The engine was internaly balanced when built, what do I need to do about my flywheel? Can I just sandblast it and remount it? Are there going to be balance issues?

Second Question:
Due to concerns about reversion and cost savings I am going to ditch my attempts to add captins call to what was once only through prop exhaust. I am pulling our the through prop exhaust and installing through transom... what do I need to do to cap the old through prop setup?

Re: Swapping my 454 with a 502 in a 22 Scarab
 

you either need a neutral balanced flywheel ....or have your old one rebalanced to neutral ....Some say its better to buy new ...

and dont forget the Harmonic Balancer also ....

Re: Swapping my 454 with a 502 in a 22 Scarab
 

I know exactly what you mean. I thought the same thing when tore my 27' Carrera apart. I always thought it would look something like taking a new car apart (everything new looking inside the internals. Instead mine had the look of a badly frame house.

Re: Swapping my 454 with a 502 in a 22 Scarab
 

Yea it did... I will post some pictures up of it tomorrow.

As for the flywheel... it still has the weight on it and the harmonic balancer from the original motor.

Re: Swapping my 454 with a 502 in a 22 Scarab
 

When it comes time, consider us for your exhaust please.

www.atecoengines.com

Good luck with your project! :drink:

Re: Swapping my 454 with a 502 in a 22 Scarab
 

if you did not "zero" balance the flywheel and use neutral HB ... those are not good things .... I would get someone's advice on that ....m

Re: Swapping my 454 with a 502 in a 22 Scarab
 

Dont take chnaces on the flywheel. Have it resurfaced and zero balanced . You wont be sorry that way.
Blocking off the old exhaust is easy once the engine is out. Just get a 'Y' pipe block off plate from Merc and throw the 'Y' pipe away. Make sure you get a good seal on that block off plate.

Re: Swapping my 454 with a 502 in a 22 Scarab
 

I have been considering the same swap in a 22 Scarab. I am concerned with sunpad clearance. Yes, Pic's Doug

Re: Swapping my 454 with a 502 in a 22 Scarab
 

Well I was able to pull the motor without having to remove the outdrive. Just needed to pull the sundeck and the seats.

It is raining on me now so I cant keep working on cleaning her up... I will go snap a few pics though.

Ok someone help me out.... where can I find the replacement plastic fitting that holds down the thermostat in the thermostat housing? (see pic)

Re: Swapping my 454 with a 502 in a 22 Scarab
 

So you were able to pull it straight forward a good bit to disengage the drive input shaft?