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What size gas springs for a 220 ssi engine and ski compartments?

Gas Springs Spring Lift engine compartment ski compartment SL34 SL33

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#1 jdpierce

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Posted 07 May 2012 - 08:54 PM

I just bought a used 2004 Chaparral 220 SSi. The spring lift gas springs under both the engine compartment and the ski compartment do not hold the compartments up on their own. The first question I have is, are they supposed to? I assume so, but I didn't know if perhaps they were only meant to lower it slowly rather than actually holding them up.

Assuming that they are supposed to hold them up on their own, what part numbers are the "factory-specified" parts? My ski compartment has a spring lift SL33-40-1. My engine compartment has two SL34-120-1, one SL34-60-1, and one SL34-80-1. Are those the factory parts? If they are, should I simply replace them, or should I upsize them assuming that my engine compartment weighs more now due to water or dirt?

Any help would be much appreciated. I don't want my engine compartment to open up on its own if I upsize the springs too much!

I would think that if I buy ones with too high of a pressure rating, the engine compartment may even lift up on its own.

#2 brick

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Posted 07 May 2012 - 09:42 PM

Four struts to hold up the motor box? Should be two only.
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2005 220SSi
350 MAG MPI/B3 2.0/24's
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#3 jdpierce

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Posted 07 May 2012 - 09:56 PM

Yes, there are definitely four there. And they still don't hold it up! Only the home made wooden stick does that. :slap:

#4 WV Relax

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Posted 08 May 2012 - 07:30 AM

Go to the "Chaparral Boats" web site, and at the top of the page you will see "Customert Support"; On that page you will see "Parts Lists". They list your boat parts and have very good photos of everything.
Hope this helps.
2011 - Chaparral 246 SSI "Dohi Yona"
Blue Vapor w/ Driftwood
Mercruiser 5.7L 350 Mag 300HP Bravo III

#5 WV Relax

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Posted 08 May 2012 - 07:31 AM

Here is the link.

http://www.chaparral...ns=parts_guides
2011 - Chaparral 246 SSI "Dohi Yona"
Blue Vapor w/ Driftwood
Mercruiser 5.7L 350 Mag 300HP Bravo III

#6 Futzin'

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Posted 08 May 2012 - 09:19 AM

My 220 also has 2 struts. They do hold the engine compartment open, but it's marginal. Seems to be fairly common with boat builders to use marginal sized struts in these applications.

P1000040.jpg

2006 220 SSi
Merc 350Mag/B3
2006 Chevy Suburban 2500 8.1L


#7 brick

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Posted 08 May 2012 - 11:22 AM

If 4 struts are not holding it up, maybe it has gained some water weight. Check the mounting holes for the sunpad, as they can let water wick into the core material. Or could be 4 worn out struts. Still not sure why you would have four...
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2005 220SSi
350 MAG MPI/B3 2.0/24's
New Dimension tower
C6 Corvette (when not boating)

#8 venom600

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Posted 08 May 2012 - 01:30 PM

My 220 also has 2 struts. They do hold the engine compartment open, but it's marginal. Seems to be fairly common with boat builders to use marginal sized struts in these applications.

Same here. 2 struts total, but they *barely* hold the engine compartment open.

--Ben
2001 Chaparral 220 SSi "Big Oardeal"
5.7L Volvo GSi, SX
Towing with an '08 Ram 2500, 6.7L Cummins "Big Deal"

#9 IndyChap

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Posted 08 May 2012 - 07:33 PM

I just replaced the struts on my 2001 216SSi and I was able to find EXACT replacements at iBoat for ~$15each. just enter the SL part number.

I have a friend with a 2006 220 and he only has 2x gas lifts. Would be interesting to see picture of 4x??

*NOTE the engine cover / sunpad is HEAVY... I used 2x 2x4s to hold up the sunpad while I replaced the gas lift.

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2001 216SSi 5.7L Alpha


#10 jdpierce

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Posted 09 May 2012 - 07:29 PM

Here's a photo of my 4 gas springs in my '04 Chap 220 SSi engine compartment. Merc 5.7engine. It looks different from the way it looks in their manual, but the engine in the manual is a Volvo. Not sure if this was the standard method for the Merc engine or not. Interested in hearing from others with '04 220 SSi Merc 5.7

Attached Files



#11 Phillbo

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Posted 09 May 2012 - 08:53 PM

Take one off and head to an auto parts store.... I bet someone like NAPA can match it .

#12 brick

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Posted 10 May 2012 - 12:00 AM

That's not what mine looks like. And not what my 2002 220SSi looked like either. Maybe someone added two extra struts, as it was not staying up? I still think you have water in the motor box, making it too heavy for the struts.
Is the oil filter from 5/08?
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2005 220SSi
350 MAG MPI/B3 2.0/24's
New Dimension tower
C6 Corvette (when not boating)

#13 Shepherd

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Posted 10 May 2012 - 06:13 AM

Here's a photo of my 4 gas springs in my '04 Chap 220 SSi engine compartment. Merc 5.7engine. It looks different from the way it looks in their manual, but the engine in the manual is a Volvo. Not sure if this was the standard method for the Merc engine or not. Interested in hearing from others with '04 220 SSi Merc 5.7


Does your 220 SSi have 'Sport' seating with 2 buckets and a rear solid bench with no walk-thru, or does it have 2 buckets with the walk-thru and an 'L' shaped rear bench?
The most important things in life aren't things.
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#14 jdpierce

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Posted 10 May 2012 - 07:52 AM

Yes, the filer is marked 5/08 and says 150 hours on it. Time for a change!

Also, the seating is the L-shaped rear seats with walk through. We also have cushions that can be put in the walkthrough to make the seating go all the way across.

#15 jdpierce

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Posted 10 May 2012 - 07:52 AM

Yes, the filer is marked 5/08 and says 150 hours on it. Time for a change!

Also, the seating is the L-shaped rear seats with walk through. We also have cushions that can be put in the walkthrough to make the seating go all the way across.

#16 brick

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Posted 10 May 2012 - 10:20 PM

What weight rating are the struts? I can check to see what mine are.
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cute wife
2005 220SSi
350 MAG MPI/B3 2.0/24's
New Dimension tower
C6 Corvette (when not boating)

#17 Radonda

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Posted 27 May 2014 - 03:01 PM

Great link! My boat is a 2001Sunesta.Is their a location for older models?



#18 bhutch

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Posted 28 May 2014 - 11:07 AM

I have a 09 216ssi that was bought new in '10. I went through 2 set already. Luckily covered by warranty. Betting that mine are undersized





Also tagged with one or more of these keywords: Gas Springs, Spring Lift, engine compartment, ski compartment, SL34, SL33