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    454 distributer/timing problems

    well I think Ive figured it out, when I pulled the module off of the riser to find a part# (not legible) I saw that the resin filled backing had a hole in it, not sure from what. now the challenge of finding a new one, mercruiser has a kit to upgrade the module to basically a T5 (part #15248T02)...
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    454 distributer/timing problems

    thanks guys!
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    454 distributer/timing problems

    Hello, my port side 454 has been running like crap for a bit and I've chased it down to the distributer (Tbolt V large module 1984) when I put a timing light on it its all over the place, this results in a jumpy idle and an occasional backfire at speed. is this likely the module itself or the...
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    Tr installation/ gimbal bearing problem

    I just changed the gimbal bearing and now I can't get the drive all the way in, it's about 1.25" out, the new bearing went on the input shaft all the way into the orings but tended to bind up a little on the shaft, I used Emory cloth to smoothe the tapered area of the shaft where it was binding...
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    Tr questions

    What is the difference between the 1973-76 tr drive and the 77-93, and is there any compatibility? A guy has what he says is a 1976 for sale, the only difference I see Frome what I have (1983) is he has the merctrans and I have the velvet drive, witch is fine I just want a spare drive and gimbal...
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    Mercruiser TR drive questions

    I just picked up a 1983 Searay Amberjack 255 with a 454 and a TR drive. The only bad thing I can find about these is the rarity of parts, that being said I'm on a mission to get some spare parts. I've found a used lower unit but its a left hand rotation and mine is a right, now because the...
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    US Marine engines, Auburn WA - Anyone have any experiences with them??

    Last fall I bought a new small block for my 30' Tolly from them, over the fall and winter I got my old one out and and swapped everything over and installed, finally fired it off this week:mad: Lots of topend noise that a valve adjustment did nothing for so I get a hold of the "Warranty Dept"...
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    Factory roller SBC What years??

    As the title says..
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    Mercruiser inboard exhaust question

    I'm replacing the risers and reducers on my new boat (26 tollycraft w/90's 255 mercruiser inboard) the risers were in bad shape, I dont think they would have lasted the season. My question is this: can I use fiberglass reducers right off the back of the risers? the mercruiser reducers are...
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    Inboard prop question

    I recently bought a '26 Tollycraft sedan, its heavy (9000+) not really a planing hull but they will if you want to burn the gas, the older ones like mine came with a conventional drive that left limited room for a prop of adequate size, I posted on the tolly forum about trying a 4 or 5 blade and...
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    Questions about an older Chris craft

    Getting real serious about a 1969 31' CC commander, twin 327q's low hours since rebuilds, my question is why did CC install these motors backwards? and not its not a V drive boat, the front of the crank mates to the trans its hard to see exactly how this works because of the heat exchanger is...
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    Hotter thermostat?

    Right now I have the stock (145*) tstat but am thinking of going to a 160* or a 180* the only reason for this is to get some better heat out of the heater, I assume the only reason for a 145* tstat is to keep detonation under control. My boat is a little under propped and I've never had an issue...
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    Hard starting-still

    In the last few weeks I have installed a new carb, changed the plugs and checked the timing. It runs well and the fuel economy is up a little bit, but still even with a choke that works it takes 15 sec. or so of cranking to start cold and 4-5 sec. when its warm. I was hoping in addition to other...
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    First impressions of my new edelbrock 1409

    First, I already had an edelbrock 2104 manifold with my Q-jet on top, so that was already done. My problems with the Qjet- no choke, sometimes it could be hard to start. The fastest I could go without getting into the secondaries was 3500 rpm after that fuel economy went from the low 2s (mpg) to...
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    fuel line requierments

    Santa got me a new Edelbrock 1409 to replace my tired Qjet, do I need to make a new hard line or can I run a hose?
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    5.7 alpha 1 vibration

    The boat in my sig has a slight vibration, its always had this, in gear out of gear most noticable @ 1k-2k its gotten a little worse in the last 600 hrs. Ive had the drive off 5 or 6 times and the u-joints have always been good, could it be the coupler? at its worst it compares to reving a motor...
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    another alpha shift thread

    Short answer- I know, lower cable. It intermitantly wont engage reverse and the shift interupt switch is working properly but thats not the problem. when it does this it will grind but wont engage other times it works just fine, when it wont engage ive removed the cable from the interupt switch...
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    more lmf 400 problems

    Ive had lowrance lmf 400 for a few years and have only had the ep60 fuel flow sensor hooked up to it, this year I added a ep70 paddle wheel speed sensor, installed it and its working but it will not display mpg ?? I have the top display box reading- water speed, middle- fuel flow, bottem- mpg...
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    elaphant ear 3 blade vs 4 blade?

    I'm currently running a 16-16 3 blade elaphant ear and im wondering if going to a 4 blade would serve me better. the boat is the 22 in my sig and with fuel and gear/passegers weighs 4500+. with the 3 blade it planes at 20-21 tops out at 38-40@4500 rpm best econo cruise is at 3100-3300 @23-24 mph...
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    belt driven raw water pump for an alpha?

    does anyone do this? this boat has always tended to run a little hot at low rpm and i keep it in the water most of the time so changing the impeller is a bit of extra work.
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