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slalombuggy Samba Member
Joined: July 17, 2010 Posts: 9128 Location: Canada
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Posted: Fri Apr 20, 2018 10:01 am Post subject: Re: Firebuggy's buggy. |
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Firebuggy wrote: |
slalombuggy wrote: |
Why'd you buy a clearance cam? Are you building a big stroked engine?
brad |
Aircooled.net. I am building a 2110. 82x90.5.
Didn't feel like doing that part myself and it was one less thing to have to do. |
Gotcha, missed the mention of a stroker crank. I got the last cam I bought clearance also, saves a lot of work and messing around.
brad |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Mon Apr 30, 2018 7:01 pm Post subject: Re: Firebuggy's buggy. |
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Continued the teardown of the old motor. I still can't believe this thing ran as long as it did. Check this out...
Push rods. Normal ones from 3/4 side. Scuffed up ones 1/2 side. No marks in the push rod tubes. Have no idea how they got marked up like that unless it was prior to the rebuild of this motor...
Brazilian heads of some kind...
Pistons. Mahles to be exact.
3/4 side pistons
Case
Every connecting rod installed upside down. Bump facing down instead of up.
Inerds...
Cam shaft appears to be an Engle W110.
Crank and Connecting rods. Not sure brand. Looks like 311B stamped on connecting rods. Only marking on crank is a "48" and a "032".
Wear marks on the bearing...
I always assumed the thrust bearing was pounded out on this case, but apparently I was wrong. Thrust bearing seems fine and in place solid. However, I believe this bearing was the problem. I don't think it's supposed to be loose!!
Link
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Mon May 07, 2018 12:14 pm Post subject: Re: Firebuggy's buggy. |
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Found something else...looks like it shifted and got crushed during the build.
These bearings are toast...
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Mon May 07, 2018 12:25 pm Post subject: Re: Firebuggy's buggy. |
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Okay on to the new build!
New case on stand.
Started weighing parts...
I have 2 questions...
1) I got these Scat I-beam connecting rods and on the outside of the box they have the weights written down. Is it safe to assume these have already been balanced and matched?
2) How do you guys clean your new cases? Air? Water jet? Solvent? There is a pile of black sand looking stuff in the corner and I'm not sure what would be inside some of the passages.
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Wed May 09, 2018 11:29 am Post subject: Re: Firebuggy's buggy. |
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Worked on the engine a bit today. Got the cam gear on the cam (W120). Installed the cam bearings and set cam thrust .002".
Did the lifter mod...
Ran into my first problem though. On the 1/2 side of the case, the cam lobe to lifter clearance measured .047" which I believe is okay, however the 3/4 side of the case I only have .027" clearance. Not sure what to do here and what would be easiest. Going to post in the engine forum to get help. |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Wed May 16, 2018 8:06 pm Post subject: Re: Firebuggy's buggy. |
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Got some more stuff done on the buggy engine build...
Got this great tool for cleaning the crankshaft oil galleries.
Lots of crap inside the crank. Unbelievable really for a new part!
Nice and clean now!
Cleaned the rod bearings with acetone.
Before
After
Plastigaged the crank and rod bearings...
Tolerances so far...
All together...
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Wed May 16, 2018 8:12 pm Post subject: Re: Firebuggy's buggy. |
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Cam shaft end play...
Link
Smooth Cam...
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heywebonya Samba Member
Joined: July 08, 2010 Posts: 823 Location: Portage, MI
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Posted: Thu May 17, 2018 5:33 am Post subject: Re: Firebuggy's buggy. |
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Nice build, great attention to right-first-time practices. _________________ If I knew what I was doing; I wouldn't be building a buggy! |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Thu May 17, 2018 2:10 pm Post subject: Re: Firebuggy's buggy. |
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heywebonya wrote: |
Nice build, great attention to right-first-time practices. |
Thanks Heywebonya. Trying my hardest to do it right the first time! Slow and steady wins the race. |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Wed May 30, 2018 9:15 am Post subject: Re: Firebuggy's buggy. |
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Whew been busy the last week or so. Lost my build partner for a week as she left yesterday for sunny California to compete in the IBJJF Worlds Competition. Her first time going so pretty excited for her.
Anyway, this is what has been going on...
Used this nice hot plate/stirrer to heat up the gear to go on the crankshaft. Worked okay, but worked even better when I put the gear in a pot of hot oil.
Cleaning the pistons and cylinders...
Gaps of the compression rings. As noted below, top ring needed slight shaving/adjusting...
Deck height is going to be negative as the piston is sticking out of the cylinder (which I new from my combo of parts)...
Deck height cylinder 3...
Deck height cylinder 1
So, just like the lifters (that were different in height on the 1/2 side compared to the 3/4 side) so are the deck heights. Not a lot but a difference none the less. Not 100% sure of the accuracy either as I was using a straight edge to judge when piston was level with cylinder top. And YES I am well aware that is not the proper way to use the deck height tool, but it makes a great base for the magnet!
First measurement of end play on the crank was with the flywheel and crank outside of the case, flywheel not torqued on and using feeler gauges. I got 0.050". This measurement is with the flywheel torqued on, crank in the case, case halves torqued on. 0.046"
Link
Crankshaft spinning freely, no issues with clearance anywhere I can feel/see...
Link
_________________ 2110 build for buggy
The cost of building an engine yourself is like converting to metric..."Double it and add thirty!" |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Thu May 31, 2018 7:43 pm Post subject: Re: Firebuggy's buggy. |
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Not much done today. Broke down crankshaft, removed gears, bearing, pulley and flywheel. Heated gears back up and put back on. Put Loctite on the grub screws in the crank. Packed the crank, pulley, flywheel and pressure plate so I can deliver it to the machine shop tomorrow to have it all balanced. I ordered Rasser 050 heads from Mofoco along with new dual Weber IDF 40's.
Tapped the oil gallery from the oil pump to engine. I'll be going full flow and the oil pump I purchased doesn't have an outlet to plug.
Threw the distributor in to check its endplay. Was well over 0.100"! Then I noticed the distributor clamp wasn't sitting flush with the case and the distributor wasn't in all the way because of it. A little persuasion in the vice with channel locks and problem solved. Ended up with an endplay of 0.062".
_________________ 2110 build for buggy
The cost of building an engine yourself is like converting to metric..."Double it and add thirty!" |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Thu Jun 07, 2018 8:16 pm Post subject: Re: Firebuggy's buggy. |
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Just got my crank, flywheel, pulley and pressure plate back from the machine shop. All nicely balanced!
Crankshaft - couple of grinds
Flywheel - three drill marks
Pressure Plate - three drill marks
Pulley - No marks on it.
_________________ 2110 build for buggy
The cost of building an engine yourself is like converting to metric..."Double it and add thirty!" |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Wed Aug 08, 2018 6:30 pm Post subject: Re: Firebuggy's buggy. |
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Been busy the last couple months and the heat has been unbearable to work in the garage. Parts also took a while to clear customs. I had stuff coming from Vancouver BC, California, Utah, Michigan and NY state.
New Heads. Mofoco 050 Rasser...
Weber IDF 40's
1.25 Rockers
Stainless Windage Tubes
Removing the inner springs...
Installing new venturi's, velocity stacks and jets...
Rocker geometry was a pain in the ASS!! The only way I could get it bang on with the rockers I ordered was to remove the lash caps. I now have most of the parts installed along with new tin. I also purchased a sync-link system. I didn't want the added frustration and hassle with the bar setup. All I have left to do is install the external oil filter and hoses, some electrical tidy up, prime the oil system, install the push rods and rockers, put on the exhaust, then install the engine, connect new fuel pump and fuel lines and break it in. Hopefully by Friday evening or Saturday morning.
_________________ 2110 build for buggy
The cost of building an engine yourself is like converting to metric..."Double it and add thirty!" |
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hillmotorsports Samba Member
Joined: December 27, 2014 Posts: 432 Location: Morrisburg, Ontario, Canada
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Posted: Thu Aug 09, 2018 4:58 am Post subject: Re: Firebuggy's buggy. |
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Looking good!
Did you ever find a functioning link to replace the hunterdunebuggy.com?
I'm about ready to start a complete rebuild of a Meyers Tow'd, including rebuilding what was supposed to be a "never had oil, built with all new parts" motor that flowed oil out as fast as you could pour it in.
We're not that far apart, should get together sometime to compare notes. 2 of our sons run a race shop at Calabogie Motorsports Park, oldest daughter is a paramedic with Renfrew County, so we are familiar with the area.
Paul _________________ Rosemarie and Paul Hill
Morrisburg, Ontario
(With way more projects than spare time!) |
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Wetstuff Samba Member
Joined: September 23, 2010 Posts: 700 Location: Maryland
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Posted: Thu Aug 09, 2018 9:40 am Post subject: Re: Firebuggy's buggy. |
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FB, Tourist here... When you mention marks - is that a good thing because the machine shop lightened the part at that/those spots? ...and the pulley was balanced? (tho' would not the pulley be pretty low mass?)
I envy your ability to focus and take your time.
Jim _________________ Manx #2614 |
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slalombuggy Samba Member
Joined: July 17, 2010 Posts: 9128 Location: Canada
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Posted: Thu Aug 09, 2018 9:45 am Post subject: Re: Firebuggy's buggy. |
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You did reinstall the lash caps right? Those aren't optional unless you are running elephant foot adjuster screws. The ends of SS valves will mushroom, they aren't hard enough.
Nice engine build.
brad |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Thu Aug 09, 2018 4:27 pm Post subject: Re: Firebuggy's buggy. |
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hillmotorsports wrote: |
Looking good!
Did you ever find a functioning link to replace the hunterdunebuggy.com?
I'm about ready to start a complete rebuild of a Meyers Tow'd, including rebuilding what was supposed to be a "never had oil, built with all new parts" motor that flowed oil out as fast as you could pour it in.
We're not that far apart, should get together sometime to compare notes. 2 of our sons run a race shop at Calabogie Motorsports Park, oldest daughter is a paramedic with Renfrew County, so we are familiar with the area.
Paul |
No I haven't found a link yet. I thought I screen grabbed it though, but I can't find it in the oodles of data on my computer. I wouldn't mind meeting you. If you are doing a rebuild, I could lend you some tools if you don't have any especially when it comes to the engine. The part of the cost I didn't anticipate was the umpteen number of vw tools required. Pretty sure I have all of them now! _________________ 2110 build for buggy
The cost of building an engine yourself is like converting to metric..."Double it and add thirty!"
Last edited by Firebuggy on Thu Aug 09, 2018 4:47 pm; edited 1 time in total |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Thu Aug 09, 2018 4:31 pm Post subject: Re: Firebuggy's buggy. |
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Wetstuff wrote: |
FB, Tourist here... When you mention marks - is that a good thing because the machine shop lightened the part at that/those spots? ...and the pulley was balanced? (tho' would not the pulley be pretty low mass?)
I envy your ability to focus and take your time.
Jim |
Hi
Yes those are the balance marks. The pulley is called an equalizer pulley. It weighs in around 5 3/4 lbs. _________________ 2110 build for buggy
The cost of building an engine yourself is like converting to metric..."Double it and add thirty!" |
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Firebuggy Samba Member
Joined: November 16, 2010 Posts: 122 Location: Black's Corners, Ontario Canada
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Posted: Thu Aug 09, 2018 4:45 pm Post subject: Re: Firebuggy's buggy. |
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slalombuggy wrote: |
You did reinstall the lash caps right? Those aren't optional unless you are running elephant foot adjuster screws. The ends of SS valves will mushroom, they aren't hard enough.
Nice engine build.
brad |
No I didn't reinstall the lash caps. There was no way I could get the geometry correct. I had 2 stacks of 8 shims under the rocker assembly and it still was way off. Removed the lash caps and it lined right up with 2 stacks of 2 shims. I think the lash cap thickness was the issue. I don't have elephant foot adjuster screws. I have the ball style swivel. I read some stories about the elephant foot style adjusters breaking so I steered clear of them.
Seeing as it is late in the year now, I will just get it broke in and running with the single springs. As long as I don't hammer on it I should be fine. I will put the lash caps on later with the double springs and probably change the rockers out for some SCAT's with the adjuster on the push rod end. Not sure what to do.
What's the issue with the valve stems mushrooming other than not being able to remove the valves? I figure with the low miles I do every year, I'll be long dead and buried before I would have to do a valve job. _________________ 2110 build for buggy
The cost of building an engine yourself is like converting to metric..."Double it and add thirty!" |
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oprn Samba Member
Joined: November 13, 2016 Posts: 12586 Location: Western Canada
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Posted: Fri Aug 10, 2018 4:28 am Post subject: Re: Firebuggy's buggy. |
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Just curious here - what is the advantage of lightening the flywheel and putting on a heavy pulley? |
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