Trojan Boat Forum

I converted my 1982 F26 318 to Edelbrock 1409 w/electrick choke. Hooked up to positive ballast resistor (top right side of ballast viewed from aft). This is a consistent 12V while key is on.
-Marko

Help! I’m stumped chasing down a gremlin :( :roll: My 1981 318 runs rough/stumbles after warm up (about 20 min) particularly 1000-1500 rpm progressively getting worse. In neutral revs are fine, but in gear is when rough run warm occurs. 318 is just rebuilt, new Edelbrock 1409 carb, new exhaust manif...

rsciolino (or anyone with a F26 that swapped a 318 for a 350), what adjustments did you have to do to physically fit a Chevy based 350 in the tight engine space and mate to the Velvet Drive 1:1? Which 350 did you put in? Carburetor or injected? Existing 318 VERTICAL is almost touching engine hatch a...

My Velvet Drive 1:1 on my F26 (318) is spinning forward thrust in Neutral! This after replacing a popped freeze plug on rear of 318 that required pull tranny, bellhousing, flywheel to get to 😖. Upon reassembly, a tranny issue appeared (jiggle VD splines in to damper plate was a bear): - starts and n...

Thx on pics. Going with injected for reliability/economy. https://www.mercurymarine.com/en/us/engines/inboard-and-sterndrive/remanufacturing/plus-series-inboards/ Merc factory rebuilds their 350cid 5.7 Horizon, slight bore results in 357cid 5.8 Horizon w/3 year factory warranty. Choosing merc for ea...

Paul, is yours an inline tranny? not a V drive? What engine make & hp did you put in? My set up same except still have 318, repower planned winter 15/16. Height likely main issue. Did you consider, use, or know anyone that used, a down angle tranny? ZF makes a 8 degree down angle. The 261/F26 sh...

Hi, Has anyone fit a 350 into a F26 or 261? Time to finally repower my '82 261. Currently a very tired 318 w/inline Velvet Drive 1:1. Will replace both engine/tranny & keep boat for decades. Who has done this swap? - Did you change from inline to down angle tranny to save space? - Which engine/t...

Thanks Paul. Follow up on engine fit for repower: 1) Tranny. Which trans are you using? Torque/HP rating? Are you using "in-line" trans (ie velvet drive). This would tilt engine (raise front & spark arrestor some amount) to match shaft angle, vs a "off-set" (ie ZF) which woul...

Paul, nice job! :) 2 questions: 1) Did you fit a GM 350 CID in? Did you replace a 318 w/350? how did the size/fit compare? I want to repower my '82 261 from 318 to 5.7 MEFI. Height looks to be very tight. Existing 318 is also tight, about 1" from bilge and 1/2" to hatch. 2) In 1st engine p...

Anyone else have experience replacing 318 with 5.7 in a F26? Height looks to be main fit concern.

Was it same, more, or less height clearance? I have a '82 261 & want to replace 318 w/5.7 MEFI. Current 318 is about 1" above bilge and 1/2" from hatch at spark arrestor.