Welcome to HydrostreamForums.com
If you're not registered, please consider doing so. It's easy - just click the "Register" link at the top
right corner of the page. Our forum needs members like you to contribute to the site in order to survive.
We are a community of boat lovers and Hydrostream enthusiasts here; we are happy to help anyone
who may need advice or guidance for their 'Stream; and we encourage members to offer their advice
and guidance to others as well. Thank you for visiting our forums, and please register.
We're better than Facebook.

Registering only takes a few minutes and you can do so by CLICKING HERE

If you are a member, don't forget to log in to take full advantage of the forum.

compression specs 135 merc

Have questions about setting up your boat? Engine height, setback, prop, etc.
Post Reply
User avatar

Topic Author
frogII
Hydrostream Addict
Hydrostream Addict
Posts: 263
Joined: Jul 17, 2009 10:47 am
Location: Hastings , MN

compression specs 135 merc

Post: # 1166Post frogII »

Looking for compression specs
1987 135hp all stock Mercury
my gauge shows 118-120 , 2# varience between all 6 holes
weak battery , cold engine , throttle open
Thanks
<> God is Great , Beer is Good , Boaters are Crazy <>
Top
User avatar

77viper
HSF Supporting Vendor
HSF Supporting Vendor
Posts: 1989
Joined: Mar 29, 2009 11:38 pm
Location: montgomery MN

Re: compression specs 135 merc

Post: # 1169Post 77viper »

That sounds about right for stock heads. If in dought take a leakdown test.
Samari on s&f
Chet Olson

75 viper 2.4 200, 130 shot of NOS
91 vegas loaned out
79 vking project 2.5 280
Top
User avatar

lundocno
The new guy
The new guy
Posts: 1
Joined: Aug 07, 2009 1:05 pm

Re: compression specs 135 merc

Post: # 1200Post lundocno »

leakdown test tell u nothin really all that really shows is the there is a lil wear

but yeah them specs are good for stock heads
Top
User avatar

Topic Author
frogII
Hydrostream Addict
Hydrostream Addict
Posts: 263
Joined: Jul 17, 2009 10:47 am
Location: Hastings , MN

Re: compression specs 135 merc

Post: # 1201Post frogII »

Thanks for the info
my clymer book does not show any numbers as a guideline
<> God is Great , Beer is Good , Boaters are Crazy <>
Top
User avatar

77viper
HSF Supporting Vendor
HSF Supporting Vendor
Posts: 1989
Joined: Mar 29, 2009 11:38 pm
Location: montgomery MN

Re: compression specs 135 merc

Post: # 1202Post 77viper »

lundocno wrote:leakdown test tell u nothin really all that really shows is the there is a lil wear

but yeah them specs are good for stock heads
Can you eplain how a leak down isn't a better test that compression.
Samari on s&f
Chet Olson

75 viper 2.4 200, 130 shot of NOS
91 vegas loaned out
79 vking project 2.5 280
Top
Post Reply

  • Random Topics
    Replies
    Views
    Last post

Return to “Props, Setup, and Rigging”