VP Outdrive identification

dajain

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Sep 11, 2015
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Good Morning!
I have a guys boat that I am working on and I have run into a little problem. Outdrive info and identification.

The boat is a 1992 Chapparal Signature 28 and has twin Volvo Penta DP's on it and he bought it from a harbor in California, so yes, it sat/ran in sea water. That being said, the identification plates on both outdrives are gone. The securing pins are there, just no ID plates. And as anyone can probably guess, I called a VP dealer near me and they were no help without those identification numbers.

When he bought it, the starboard drive was stuck in gear. He paid someone to "fix" it and it stuck in gear a second time and that's why I have it now. I'll try to explain this fix the best I can and as quickly as I can....

-Why someone wouldn't replace the rubber parts while the drive off is beyond my comprehension.....
-I would imagine the lack of identification numbers is why they couldn't find the proper gaskets and decided to use RTV instead.
-obvious water in the drive. Either from the dried up bellows or not enough RTV.... Make your guess. haha
-Shims on upper bearing were only half way in place
-AND... lower housing is cracked due to freezing water in the oil.

I have the drive apart and the cone has number 854222 stamped on it. I can't find this number anywhere on the internet.

I found one site that has great schematics for these VP's as long as you know what drive you have.

Can anyone help with this off the info I provided so I can find some parts?

Thanks!
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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Post a pic

Most likely DPA (AQ290 variant)

RTV has no place on an outdrive
 

QBhoy

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You’re right on the year that things changed in terms of actual model names. But to be fair, the 290DP is a common blanket model name for lots of DP drives that aren’t technically 290, but very very similar and certainly based on it at least.
It’s likely that around 92 and if you have the usual gm petroleum v engine driving them…that they will be DPA or sometimes DPB. All the same thing as a 290, 99% of the time. Someone better than I will be able to tell you more. There is a dpc too. Can’t quite remember the difference amongst them all.
 

Scott Danforth

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Can’t quite remember the difference amongst them all.
Very little difference from the 290a to DPA to DPB...DPE

Some are shims, some are minor changes in the H frame
 

QBhoy

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Very little difference from the 290a to DPA to DPB...DPE

Some are shims, some are minor changes in the H frame
You’ll be spot on Scott. Suspected it might be yourself that would be the man to ask…but wasn’t quite sure and couldn’t remember. I had a 89 290dp…but was always very aware that things changed shortly after that. Despite them looking almost identical at a glimpse. Even VP still had the dpa/b/c parts listed under the 290 banner for parts.
 

dajain

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Sep 11, 2015
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7
Thanks for the replies guys! I will get a picture posted today. Meant to earlier but got pulled away.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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BTW, the original riveted tag is on the top of the transmission housing on the front side by the bellows ring

being a 1992, you have either a 571A or a 572A which is a 5.7 paired to a DPA1 or DPA2 since you state DP's in post #1

 

dajain

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Sep 11, 2015
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7
BTW, the original riveted tag is on the top of the transmission housing on the front side by the bellows ring

being a 1992, you have either a 571A or a 572A which is a 5.7 paired to a DPA1 or DPA2 since you state DP's in post #1

Yup, the rivets are still there but the tags are gone.
My guess is the salt water was just too much for them....
 
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