Water in no. 1 cylinder 50hp Merc 4 cyl.

[woywoyboy]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Finally got the cover thingy off. Not a pleasing sight. I was unable to actually see any holes however it appears to have been "repaired" using an epoxy type product, I think you blokes call it JB Weld, around the plug thread on no 1 and no 2 has what is becoming a hole. The pitting is pretty bad and I would post a pic if I knew how. I reckon this calls for a new block but I'm not sure I have the skill level required for a task of this magnitude. Thank you djohns19, omctech , steve 2 and schematic. Your beers are waiting in the esky but I think I might drink 'em and tell you how refreshing they were.

 

[petryshyn]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

sounds bad...especially if its the second time around for patch up. I'm no quiter, but if the pits are many, we in trouble big....<br />

 

[woywoyboy]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

After careful reflection (read 3 beers) I am confident I can replace a block. 12 months ago I couldn't change an impeller, let alone diagnose the above faults. Will I have any hope of finding a new unit or will I need to scour the wreckers ? What should I be looking at when examining used ones ? If I don't attempt this I'll never know. Off to bury my head in the manual.

 

[Hooty]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

...."the grog monster a foothold".<br /><br />Knocks me out!<br /><br />c/6<br /><br />hooty

 

[steve 2]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Morning folks,8.00am in the u.k,just catching up on developments,not good news,but it is easy engine to strip,if you can split the powerhead away from the leg. have a quick read on bulletin board mercury 40 h.p may be of help. Catch you later .

 

[woywoyboy]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Tx steve 2, there doesn't seem to much to strip as you suggest so if I prepare for this I think I can do it in a day. After half a slab I decided to see what would happen if I covered the mess with an epoxy product, the decision has been made to replace the block so why not experiment ? Compression came up and no water coming out when running but the effectiveness of this type of bodgie must be questionable. I'll be on the prowl for a block tomorrow when I get back to work.

 

[Rusta]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Hi woywoyboy,<br />I have been reading with interest the many comments about your engine. I to have found a small hole in No3 expansion chamber and am in the proccess of having it welded. I have noted that you have used an epoxy as an experiment and am curious as to what it is called. Ihave heard mention of a JB weld?. <br />Could that be what you are using? and is it available in Australia. Good luck with your repairs mate. I will keep an eye on this site to see how you get on.<br /><br />Garry <br />Hobart

 

[Gold Bear]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

The "trick" to welding aluminum is making sure the base metal (existing metal) is extremely clean. Although you can't tell it, aluminum begins to oxidize within minutes of cleaning / wire brushing.<br /><br />Find an aluminum welder, and make sure he cleans the base metal with a stainless steel wire brush and acetone cleaner - minutes before he is ready to weld.<br /><br />Gold Bear (AWS/ CWI)<br />Good Luck!!

 

[woywoyboy]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Rusta, the stuff I use is called Knead It, made by Selleys. I love ths stuff but understand it isn't going to satisfactorily repair the block for me. http://www.selleys.com.au/products/general/index.htm <br />Hope you enjoyed your days at Holsworthy as the word is Defence are going to sell the land to a developer.

 

[Rusta]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

woywoyboy, Thanks mate will have a look around and see what I can come up with.<br />cya later<br />Garry

 

[flips]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

hi <br />my mate imports a product called MR STICKY<br />it is a great glue havent found a material<br />that it wont hold to yet its a 2pack glue and it takes pressure good one to try on those tricky items and its made in USA<br />just make sure you clean items very well

 

[woywoyboy]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Good news. The my favourite wrecker has a few of them and will let me have a 94' which he says is perfect and will charge me a monkey (1 monkey = $500, 1 Gorilla = $1000 or 2 Monkeys). He tells me they are all the same up to abt 94'. Can anybody confirm this please ?

 

[woywoyboy]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

The task of replacing the block was becoming more Herculean than I could manage so I have entrusted a local mechanic to do the labour for 10 units of backyard currency (1 unit = 1 slab)plus parts at retail from his employing workshop - sweet for him as he likes beer and sweet for me with no GST and I'm sure we'll have a drink together. He checkd out the block from the wreckers and reckons it's a beauty. It's hard to be off the water when it's directly across the street and I am getting excited. I even went for a run in my tinnie this morning I was that frustrated. (tinnie = 12ft De Havilland Topper+ '78 9.9 Johnno + torture poles.

 

[petryshyn]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Well hello again woywoyboy!!<br /><br />Good to hear from you..... Glad you're getting that babe up on line!! I hate seeing a motor put to rest....<br /><br /><br />So tell me, is that crocodile hunter dude as good as he looks on TV? You know, the one on the Discovery Channel.... He appears amazing!

 

[Fouled Plug]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Woywoyboy, hope your wrench gets you back on the water soon. Just give him the slabs after he does the work, not during! And by the way, if there is a trade current that reaches from down under to Alaska, can you chuck a few 'oil cans' of Foster's in for me? All we get anymore is the cheap-o aluminum cans from a brewery in Canada. It just ain't the same....

 

[woywoyboy]

Re: Water in no. 1 cylinder 50hp Merc 4 cyl.

Hi Schem, the Croc Hunter? Well, he can be described as umm, well crikey he's an angry bugger. He doesn't like being picked up at all ! Ohh look what happens when I swing him around and aggrivate him ! Ohh crikey ! He's cranky ! <br /><br />FP, there's plenty of refreshment just waiting here for you but the trade winds have been blowing the wrong way lately. Perhaps you should try brewing your own - I am trying my first batch at the moment and crikey, not too bad for a first attempt but reckon I'll be a tad crook in the morning. <br /><br />The motor was completed abt 8 weeks ago and I got an offer on the boat too good to refuse so off it went and I upgraded to an International Marine designed but Aust built 20ft cabinb cruiser with a 170hp Volvo Penta. Beaut clean leg but got a couple of little things to sort out with the motor.<br /><br />www.fishingwiththeboys.50megs.com