Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   Carb Jetting advice please (https://www.offshoreonly.com/forums/general-q/356240-carb-jetting-advice-please.html)

BBYSTWY 08-27-2018 03:04 PM

So the plot thickens with the heads....just spoke with the machine shop and he’s telling me that the guides get tight at the bottom and are less than .001 clearance....explains why it stuck....he’s also telling me that the valves are REV brand I guess and there are 5 bent intake valves and 2 more exhaust valves bent and I need all new valves....I tried to not blow up and politely asked him how the f@$k this could happen as they “went through” and “built” the heads 2 months ago and said they where fine....his answer...idk I didn’t go through these the first time another guy here did....I don’t even know where to begin with this....should I dump money into these dart heads or put the money towards a different head?? Haven’t priced out valves yet but I’m sure they’re not cheap!!

Baja Rooster 08-27-2018 03:29 PM

The last thing I ever wanted to be was a boat mechanic or engine builder, but with similar results as you with local shops I finally bought many more tools and do as much as I can. I’ve found bellows with no sealant, incorrect wire sizes and the list goes on. Sounds like you need to talk to someone hire up than the monkey you had on the phone.

ADK61 here has always been helpful here and can give you heads already set up for marine use. You may be better selling your castings and going that route if the machine shop doesn’t get there chit straight.

BBYSTWY 08-27-2018 03:50 PM

I agree....I’m so far into these heads already idk what to do...that’s why I started another thread comparing my options...still waiting to hear from them on what they plan to do

hogie roll 08-27-2018 03:50 PM


Originally Posted by MILD THUNDER (Post 4645888)
I personally prefer a timing curve. I did run locked timing and it worked. But after seeing how less timing in the midrange made more power than locked timing, it was a no brainer to me.

Id rig up at least a temporary mechanical psi gauge to see what kind of water psi you are seeing in the engine. If youre seeing 140* at the front of the engine, its quite possible youre seeing close to 200* at the back like rookie said. Which is no good for sticking valves, detonation , etc.

meant to quote you when asking about your fuel burn

Mohavvalley 08-27-2018 04:00 PM

Where you located?

BBYSTWY 08-28-2018 06:24 AM

I’m in southwest Michigan and like I said in the other thread if they don’t make this right I will be going after a refund and taking them somewhere else...I have confidence in them and don’t know what happened if it was bad communication within their shop or what but I will NOT be giving them any more money to fix something I paid them to do already....should get an answer today on what they’re gonna do so we’ll see

Stewart


All times are GMT -5. The time now is 03:05 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.