14 replies to this topic

[zinzan]

All 3 bolts are completely seized up on my '93 spi, One bolt has the head missing, but there's no leakage or anything. The other two, I've tried Liquid Wrench and about 63 other releaser-type fluids...not a budge. Anyone had success in getting these out?

[Szolders]

Use burner and hammer. Heat up housing, hit a few times with hammer, and again heat and hit, heat and hit. There is a chance that you undo this nuts. Of course lot of patience and WD-40:)

[TORZIEnJIM]

Took me a good hour and half, lots of heat and patience. Lots of wd, and prising evenly around with flat head screw driver.

[zinzan]

Thanks guys. I was rather hoping it'd be something simpler...magic wand, anyone?

[xrocketengineer]

Thanks guys. I was rather hoping it'd be something simpler...magic wand, anyone?

I don't think that Harry Potter is a forum member

[waddle]

drill them !

[zinzan]

Possibly stupid followup question, but will the heating and hammering demolish the housing?

[TORZIEnJIM]

No, but be careful of the plastic...I may have melted my rain cover clip on the right hand side...

[jagman.2003]

If the heads had snapped off I've welded nuts on the remaining stud. That got mine out.

[LukeMoss]

2 of mine did this luckily I was taking the head off for a rebuild sent it to the machining shop and took them an hour to remove the 2 bolts that were stuck I didn't want to damage the head when I did it but I'm just over cautious don't want things going wrong now haha

[zinzan]

Thanks TORZIE. Rain cover's long since disappeared on mine before I bought it! :)

[Black Pearl]

mine too snapped two bolts but i two have the spi which has the heater sandwich plate underneath so with a little heat and a hide hammer......

i got the two off in about 30 different pieces.. £32 in parts and £19.99 stud extractor the job was done.






its a brilliant device its a reverse chuck as you undo it grips tighter and with the stud you only need about 6/7mm showing
i usually put it on my knocker gun and the magic happens..

[jules_perox]

I've just JUST done this job.
I rounded off the bolt on every single head.

Then the Lump hammer and a chisel came out and I very carefully managed to prise cover from sandwich plate, sandwich plate from engine with a lot of brute force (and plenty of ignorance!).

Turned out the studs were 'rust welded' to the inside barrel of the sandwich plate and the cover.
When they were both off I doused the lot in WD40 and then got a pair of mole grips on the studs and they miraculously turned no bother!

Mini Spares sell a gold plated (should be, the price) set of three stainless steel studs to go back in which will avoid the same scenario but they need a few washers on top as they're long.

[joecefnhedog]

I've just JUST done this job.
I rounded off the bolt on every single head.

Then the Lump hammer and a chisel came out and I very carefully managed to prise cover from sandwich plate, sandwich plate from engine with a lot of brute force (and plenty of ignorance!).

Turned out the studs were 'rust welded' to the inside barrel of the sandwich plate and the cover.
When they were both off I doused the lot in WD40 and then got a pair of mole grips on the studs and they miraculously turned no bother!

Mini Spares sell a gold plated (should be, the price) set of three stainless steel studs to go back in which will avoid the same scenario but they need a few washers on top as they're long.

Do you have a link to the gold plated stainless steel studs, i can't seem to find them. And while I am here any tips on how to remove the bolt? I snapped the head unfortunately.

[AVV IT]

When you finally do get the bolts/studs out, then be sure to smear copper grease on the threads and along the shafts where they pass through the sandwich plate and housing. That is unless you want to go through all this fun again next time too!