Screamin2
New Member
anyone have any comparisons on exhaust manifolds of who makes the better manifold and risers OSCO or GLM. Or someone else. Thanks for any input
Osco or GLM
- Thread starter Screamin2
- Start date
- Oct 6, 2006
- 12,155
- Boat Info
- 1996 450DA
- Engines
- 3116 Caterpillars
Stay with Mercruiser, but you didn't ask that...............
We know the life span of Mercruiser castings..........check them in year 3 and 4, then replace in year 5 for salt water. The life span for after-market castings is a pure gamble. I've seen some leak in 2 years and others last 4.
Also, the warranties on aftermarket cast iron are effectively worthless. Sure you may eventually get a prorated amount from the manufacturer, but that is worthless since you will already have had to replace the failed castings in order to use your boat. My experience was that it took 8 weeks to ship the castings back to the manufacturer, for them to evaluate them and make a decision and then settle up with us. I was not going to leave my boat decommissioned in hurricane season while some egg-head did metalurgical analyses on bad castings. I replaced them with Mercruisers and lost only 1 day, which is what I should have done in the first place.
We know the life span of Mercruiser castings..........check them in year 3 and 4, then replace in year 5 for salt water. The life span for after-market castings is a pure gamble. I've seen some leak in 2 years and others last 4.
Also, the warranties on aftermarket cast iron are effectively worthless. Sure you may eventually get a prorated amount from the manufacturer, but that is worthless since you will already have had to replace the failed castings in order to use your boat. My experience was that it took 8 weeks to ship the castings back to the manufacturer, for them to evaluate them and make a decision and then settle up with us. I was not going to leave my boat decommissioned in hurricane season while some egg-head did metalurgical analyses on bad castings. I replaced them with Mercruisers and lost only 1 day, which is what I should have done in the first place.
kevin27
Well-Known Member
- Aug 8, 2007
- 1,040
- Boat Info
- 2017 Scout 175 sportfish.
2002 Crownline 202 LPX
- Engines
- Yamaha 90hp
Mercruiser 350mag mpi
GLM crap cost me 4000$ for a new engine. They only lasted 2 years. Do yourself a favor and buy Mercruiser parts.
rondds
Well-Known Member
- Oct 3, 2006
- 8,859
- Boat Info
- 2001 380DA
- Engines
- Merc 8.1s (2008)...Hurth ZF 63 V-drives...WB 7.0 BCGD (2013), Garmin 8208 & 740 MFDs, GMR 24xHD dome
Frank, he actually did ask that!
What Frank says. If you are doing this job yourself, take some of the approximately $2000 you will save and buy the right parts. If you are not doing it yourself, demand the right parts.
Screamin2
New Member
any good places to buy the mercruiser manifolds. The one place i checked was about $2500 for both motors, does that sound about right? thanks for everyones input
I bought on ebay from Doug Russell Marine. They were on sale at $495 each. shipping to California was another $100.
stuckinforward
New Member
I can give you a good deal on 2 pairs that i removed from a burn out, they are in very good shape, they are merc. Eric 330-273-8291 or 330-322-8817, mine are center rise with 3" spacers.
rondds
Well-Known Member
- Oct 3, 2006
- 8,859
- Boat Info
- 2001 380DA
- Engines
- Merc 8.1s (2008)...Hurth ZF 63 V-drives...WB 7.0 BCGD (2013), Garmin 8208 & 740 MFDs, GMR 24xHD dome
B0atfix.com. 280 lbs of cast iron delivered via UPS ground in 2 days for $21. I have always found their prices unbeatable.
Screamin2
New Member
How old are they?
Screamin2
New Member
Will give them a try. Thanks for the info
stuckinforward
New Member
they are off of a 1990, been sitting around for 12 years but are in great shape, if you want pics i could get them to you eric
Screamin2
New Member
I appreciate it but a little leary, wouldn't know exactly what to expect. can't really see up inside them. Guess if I am putting new motors in I should just buy new ones and be on the safe side. Thanks
Screamin2
New Member
Re: Osco or GLM I bought
:smt038Thanks for all the input. ******* was a good bit cheaper than everywhere else for the Genuine mercruiser manifolds and risers. At the last minute decided to check ebay and did find a manifold for $199. From Doug Russels they only had 2, but when I called them 3 times they finally got someone to help me. they told me they would sell me 4 at that price and 4 risers at a $165 a pc. So i saved another $500 plus free shipping. Guess it was worth the 3 phone calls.
:smt038Thanks for all the input. ******* was a good bit cheaper than everywhere else for the Genuine mercruiser manifolds and risers. At the last minute decided to check ebay and did find a manifold for $199. From Doug Russels they only had 2, but when I called them 3 times they finally got someone to help me. they told me they would sell me 4 at that price and 4 risers at a $165 a pc. So i saved another $500 plus free shipping. Guess it was worth the 3 phone calls.